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STM32H7A3IGT6 (LQFP-176(24x24)) — Symbol, Footprint IPC-7351B & 3D STEP Model

STM32H7A3IGT6

STLQFP-176(24x24) · 176 Pins · Pitch 0.50mmIPC TOLERANCE VARIATION5.0 (0)
SYNCHRONIZED 4D CROSS-PROBE MODETouch or hover any pin to highlight concurrently across Symbol, Footprint and 3D
1. SYMBOL
U1 · STM32H7A3IGT6 (LQFP-176(24x24))1PE22PE33PE44PE55PE66VBAT7PI88PC139PC14-OSC32_I10PC15-OSC32_O11PI912PI1013PI1114VSS15VDD16PF017PF118PF219PF320PF421PF522VSS23VDD24PF625PF726PF827PF928PF1029PH0-OSC_IN30PH1-OSC_OUT31NRST32PC033PC134PC2_C35PC3_C36VDD37VSSA38VREF+39VDDA40PA041PA142PA243PH244PH345PH446PH547PA348VSS49VDD50PA451PA552PA653PA754PC455PC556PB057PB158PB259PF1160PF1261VSS62VDD63PF1364PF1465PF1566PG067PG168PE769PE870PE971VSS72VDD73PE1074PE1175PE1276PE1377PE1478PE1579PB1080PB1181VCAP82VDD83PH684PH785PH886PH987PH1088PH11176PI7175PI6174PI5173PI4172VDD171PDR_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 Pitch = 2.54mm (IEEE-315)-17.8-12.7-7.6-2.52.57.612.717.8116.8111.8106.7101.696.591.486.481.376.271.166.061.055.950.845.740.635.630.525.420.315.210.25.10-5.1-10.2-15.2-20.3-25.4-30.5-35.6-40.6-45.7-50.8-55.9-61.0-66.0-71.1-76.2-81.3-86.4-91.4-96.5-101.6-106.7-111.8-116.8mm
2. 2D FOOTPRINT
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176E=24.00mm · Pitch e=0.50mmD=24.00mm-20-18-16-14-12-10-8-6-4-20246810121416182020181614121086420-2-4-6-8-10-12-14-16-18-20mm
3. 3D CAD MODEL
Package Body: 24.00mm × 24.00mm · Pitch: 0.50mm · Ruler Step: 1.00mmSynced <100ms

Synchronized Pinout (Symbol / 2D / 3D) (176/176)

Touch or hover any pin to highlight concurrently across Symbol, Footprint and 3D
PinSymbolTypeFunction (EN)
1PE2I/OMultiplexed I/O & Peripheral Pin PE2 (General)
2PE3I/OMultiplexed I/O & Peripheral Pin PE3 (General)
3PE4I/OMultiplexed I/O & Peripheral Pin PE4 (General)
4PE5I/OMultiplexed I/O & Peripheral Pin PE5 (General)
5PE6I/OMultiplexed I/O & Peripheral Pin PE6 (General)
6VBATPowerPower Supply Input (VBAT — 3.3V VDD (Max 4.0V))
7PI8I/OMultiplexed I/O & Peripheral Pin PI8 (General)
8PC13I/OMultiplexed I/O & Peripheral Pin PC13 (General)
9PC14-OSC32_INI/OMultiplexed I/O & Peripheral Pin PC14-OSC32_IN (RTC/CLK)
10PC15-OSC32_OUTI/OMultiplexed I/O & Peripheral Pin PC15-OSC32_OUT (RTC/CLK)
11PI9I/OMultiplexed I/O & Peripheral Pin PI9 (General)
12PI10I/OMultiplexed I/O & Peripheral Pin PI10 (General)
13PI11I/OMultiplexed I/O & Peripheral Pin PI11 (General)
14VSSGNDGround Reference Pin (VSS)
15VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
16PF0I/OMultiplexed I/O & Peripheral Pin PF0 (General)
17PF1I/OMultiplexed I/O & Peripheral Pin PF1 (General)
18PF2I/OMultiplexed I/O & Peripheral Pin PF2 (General)
19PF3I/OMultiplexed I/O & Peripheral Pin PF3 (General)
20PF4I/OMultiplexed I/O & Peripheral Pin PF4 (General)
21PF5I/OMultiplexed I/O & Peripheral Pin PF5 (General)
22VSSGNDGround Reference Pin (VSS)
23VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
24PF6I/OMultiplexed I/O & Peripheral Pin PF6 (General)
25PF7I/OMultiplexed I/O & Peripheral Pin PF7 (General)
26PF8I/OMultiplexed I/O & Peripheral Pin PF8 (General)
27PF9I/OMultiplexed I/O & Peripheral Pin PF9 (General)
28PF10I/OMultiplexed I/O & Peripheral Pin PF10 (General)
29PH0-OSC_INI/OMultiplexed I/O & Peripheral Pin PH0-OSC_IN (RTC/CLK)
30PH1-OSC_OUTI/OMultiplexed I/O & Peripheral Pin PH1-OSC_OUT (RTC/CLK)
31NRSTISystem Enable & Hardware Reset (NRST)
32PC0I/OMultiplexed I/O & Peripheral Pin PC0 (General)
33PC1I/OMultiplexed I/O & Peripheral Pin PC1 (General)
34PC2_CI/OMultiplexed I/O & Peripheral Pin PC2_C (General)
35PC3_CI/OMultiplexed I/O & Peripheral Pin PC3_C (General)
36VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
37VSSAGNDGround Reference Pin (VSSA)
38VREF+AnalogMultiplexed I/O & Peripheral Pin VREF+ (General)
39VDDAPowerPower Supply Input (VDDA — 3.3V VDD (Max 4.0V))
40PA0I/OMultiplexed I/O & Peripheral Pin PA0 (General)
41PA1I/OMultiplexed I/O & Peripheral Pin PA1 (General)
42PA2I/OMultiplexed I/O & Peripheral Pin PA2 (General)
43PH2I/OMultiplexed I/O & Peripheral Pin PH2 (General)
44PH3I/OMultiplexed I/O & Peripheral Pin PH3 (General)
45PH4I/OMultiplexed I/O & Peripheral Pin PH4 (General)
46PH5I/OMultiplexed I/O & Peripheral Pin PH5 (General)
47PA3I/OMultiplexed I/O & Peripheral Pin PA3 (General)
48VSSGNDGround Reference Pin (VSS)
49VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
50PA4I/OMultiplexed I/O & Peripheral Pin PA4 (General)
51PA5I/OMultiplexed I/O & Peripheral Pin PA5 (General)
52PA6I/OMultiplexed I/O & Peripheral Pin PA6 (General)
53PA7I/OMultiplexed I/O & Peripheral Pin PA7 (General)
54PC4I/OMultiplexed I/O & Peripheral Pin PC4 (General)
55PC5I/OMultiplexed I/O & Peripheral Pin PC5 (General)
56PB0I/OMultiplexed I/O & Peripheral Pin PB0 (General)
57PB1I/OMultiplexed I/O & Peripheral Pin PB1 (General)
58PB2I/OMultiplexed I/O & Peripheral Pin PB2 (General)
59PF11I/OMultiplexed I/O & Peripheral Pin PF11 (General)
60PF12I/OMultiplexed I/O & Peripheral Pin PF12 (General)
61VSSGNDGround Reference Pin (VSS)
62VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
63PF13I/OMultiplexed I/O & Peripheral Pin PF13 (General)
64PF14I/OMultiplexed I/O & Peripheral Pin PF14 (General)
65PF15I/OMultiplexed I/O & Peripheral Pin PF15 (General)
66PG0I/OMultiplexed I/O & Peripheral Pin PG0 (General)
67PG1I/OMultiplexed I/O & Peripheral Pin PG1 (General)
68PE7I/OMultiplexed I/O & Peripheral Pin PE7 (General)
69PE8I/OMultiplexed I/O & Peripheral Pin PE8 (General)
70PE9I/OMultiplexed I/O & Peripheral Pin PE9 (General)
71VSSGNDGround Reference Pin (VSS)
72VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
73PE10I/OMultiplexed I/O & Peripheral Pin PE10 (General)
74PE11I/OMultiplexed I/O & Peripheral Pin PE11 (General)
75PE12I/OMultiplexed I/O & Peripheral Pin PE12 (General)
76PE13I/OMultiplexed I/O & Peripheral Pin PE13 (General)
77PE14I/OMultiplexed I/O & Peripheral Pin PE14 (General)
78PE15I/OMultiplexed I/O & Peripheral Pin PE15 (General)
79PB10I/OMultiplexed I/O & Peripheral Pin PB10 (General)
80PB11I/OMultiplexed I/O & Peripheral Pin PB11 (General)
81VCAPI/OMultiplexed I/O & Peripheral Pin VCAP (General)
82VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
83PH6I/OMultiplexed I/O & Peripheral Pin PH6 (General)
84PH7I/OMultiplexed I/O & Peripheral Pin PH7 (General)
85PH8I/OMultiplexed I/O & Peripheral Pin PH8 (General)
86PH9I/OMultiplexed I/O & Peripheral Pin PH9 (General)
87PH10I/OMultiplexed I/O & Peripheral Pin PH10 (General)
88PH11I/OMultiplexed I/O & Peripheral Pin PH11 (General)
89PH12I/OMultiplexed I/O & Peripheral Pin PH12 (General)
90VSSGNDGround Reference Pin (VSS)
91VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
92PB12I/OMultiplexed I/O & Peripheral Pin PB12 (General)
93PB13I/OMultiplexed I/O & Peripheral Pin PB13 (General)
94PB14I/OMultiplexed I/O & Peripheral Pin PB14 (General)
95PB15I/OMultiplexed I/O & Peripheral Pin PB15 (General)
96PD8I/OMultiplexed I/O & Peripheral Pin PD8 (General)
97PD9I/OMultiplexed I/O & Peripheral Pin PD9 (General)
98PD10I/OMultiplexed I/O & Peripheral Pin PD10 (General)
99PD11I/OMultiplexed I/O & Peripheral Pin PD11 (General)
100PD12I/OMultiplexed I/O & Peripheral Pin PD12 (General)
101PD13I/OMultiplexed I/O & Peripheral Pin PD13 (General)
102VSSGNDGround Reference Pin (VSS)
103VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
104PD14I/OMultiplexed I/O & Peripheral Pin PD14 (General)
105PD15I/OMultiplexed I/O & Peripheral Pin PD15 (General)
106PG2I/OMultiplexed I/O & Peripheral Pin PG2 (General)
107PG3I/OMultiplexed I/O & Peripheral Pin PG3 (General)
108PG4I/OMultiplexed I/O & Peripheral Pin PG4 (General)
109PG5I/OMultiplexed I/O & Peripheral Pin PG5 (General)
110PG6I/OMultiplexed I/O & Peripheral Pin PG6 (General)
111PG7I/OMultiplexed I/O & Peripheral Pin PG7 (General)
112PG8I/OMultiplexed I/O & Peripheral Pin PG8 (General)
113VSSGNDGround Reference Pin (VSS)
114VDD33USBPowerPower Supply Input (VDD33USB — 3.3V VDD (Max 4.0V))
115PC6I/OMultiplexed I/O & Peripheral Pin PC6 (General)
116PC7I/OMultiplexed I/O & Peripheral Pin PC7 (General)
117PC8I/OMultiplexed I/O & Peripheral Pin PC8 (General)
118PC9I/OMultiplexed I/O & Peripheral Pin PC9 (General)
119PA8I/OMultiplexed I/O & Peripheral Pin PA8 (General)
120PA9I/OMultiplexed I/O & Peripheral Pin PA9 (General)
121PA10I/OMultiplexed I/O & Peripheral Pin PA10 (General)
122PA11I/OMultiplexed I/O & Peripheral Pin PA11 (General)
123PA12I/OMultiplexed I/O & Peripheral Pin PA12 (General)
124PA13I/OMultiplexed I/O & Peripheral Pin PA13 (General)
125VCAPI/OMultiplexed I/O & Peripheral Pin VCAP (General)
126VSSGNDGround Reference Pin (VSS)
127VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
128PH13I/OMultiplexed I/O & Peripheral Pin PH13 (General)
129PH14I/OMultiplexed I/O & Peripheral Pin PH14 (General)
130PH15I/OMultiplexed I/O & Peripheral Pin PH15 (General)
131PI0I/OMultiplexed I/O & Peripheral Pin PI0 (General)
132PI1I/OMultiplexed I/O & Peripheral Pin PI1 (General)
133PI2I/OMultiplexed I/O & Peripheral Pin PI2 (General)
134PI3I/OMultiplexed I/O & Peripheral Pin PI3 (General)
135VSSGNDGround Reference Pin (VSS)
136VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
137PA14I/OMultiplexed I/O & Peripheral Pin PA14 (General)
138PA15I/OMultiplexed I/O & Peripheral Pin PA15 (General)
139PC10I/OMultiplexed I/O & Peripheral Pin PC10 (General)
140PC11I/OMultiplexed I/O & Peripheral Pin PC11 (General)
141PC12I/OMultiplexed I/O & Peripheral Pin PC12 (General)
142PD0I/OMultiplexed I/O & Peripheral Pin PD0 (General)
143PD1I/OMultiplexed I/O & Peripheral Pin PD1 (General)
144PD2I/OMultiplexed I/O & Peripheral Pin PD2 (General)
145PD3I/OMultiplexed I/O & Peripheral Pin PD3 (General)
146PD4I/OMultiplexed I/O & Peripheral Pin PD4 (General)
147PD5I/OMultiplexed I/O & Peripheral Pin PD5 (General)
148VSSGNDGround Reference Pin (VSS)
149VDDMMCPowerPower Supply Input (VDDMMC — 3.3V VDD (Max 4.0V))
150PD6I/OMultiplexed I/O & Peripheral Pin PD6 (General)
151PD7I/OMultiplexed I/O & Peripheral Pin PD7 (General)
152PG9I/OMultiplexed I/O & Peripheral Pin PG9 (General)
153PG10I/OMultiplexed I/O & Peripheral Pin PG10 (General)
154PG11I/OMultiplexed I/O & Peripheral Pin PG11 (General)
155PG12I/OMultiplexed I/O & Peripheral Pin PG12 (General)
156PG13I/OMultiplexed I/O & Peripheral Pin PG13 (General)
157PG14I/OMultiplexed I/O & Peripheral Pin PG14 (General)
158VSSGNDGround Reference Pin (VSS)
159VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
160PG15I/OMultiplexed I/O & Peripheral Pin PG15 (General)
161PB3I/OMultiplexed I/O & Peripheral Pin PB3 (General)
162PB4I/OMultiplexed I/O & Peripheral Pin PB4 (General)
163PB5I/OMultiplexed I/O & Peripheral Pin PB5 (General)
164PB6I/OMultiplexed I/O & Peripheral Pin PB6 (General)
165PB7I/OMultiplexed I/O & Peripheral Pin PB7 (General)
166BOOT0IInput-Only Pin BOOT0 (General)
167PB8I/OMultiplexed I/O & Peripheral Pin PB8 (General)
168PB9I/OMultiplexed I/O & Peripheral Pin PB9 (General)
169PE0I/OMultiplexed I/O & Peripheral Pin PE0 (General)
170PE1I/OMultiplexed I/O & Peripheral Pin PE1 (General)
171PDR_ONI/OMultiplexed I/O & Peripheral Pin PDR_ON (General)
172VDDPowerPower Supply Input (VDD — 3.3V VDD (Max 4.0V))
173PI4I/OMultiplexed I/O & Peripheral Pin PI4 (General)
174PI5I/OMultiplexed I/O & Peripheral Pin PI5 (General)
175PI6I/OMultiplexed I/O & Peripheral Pin PI6 (General)
176PI7I/OMultiplexed I/O & Peripheral Pin PI7 (General)
PIN 1 PE2
I/O
Multiplexed I/O & Peripheral Pin PE2 (General)
Design note: Signal terminal PE2 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE2. Supported peripheral buses: General.
IPC-7351B Solder Density & Span C/G/Z Tuner

Live Embedded Datasheet PDF & Technical Drawing Gallery (6 Standard Drawings + 29 Extracted Figures)

Read the original datasheet PDF directly or click any drawing to view fullscreen
Open PDF in New Window ↗Read Datasheet PDF (.pdf)
PDF VIEWEROfficial Datasheet Document: STM32H7A3IGT6 (ST · LQFP-176(24x24))
Scroll, search text (Ctrl+F), or expand directly inside the embedded PDF reader below
1. Realistic 3D PackageREPRESENTATIVE
STM32H7A3IGT6 (LQFP-176(24x24)) - 1. Realistic 3D Package
Detailed solid 3D bodyExpand ›
2. Standard Pinout (Top View)CLEANROOM PINOUT
STM32H7A3IGT6 (LQFP-176(24x24)) - 2. Standard Pinout (Top View)
True package pinout (176 pins)Expand ›
3. Original Datasheet PinoutPDF PINOUT
STM32H7A3IGT6 (LQFP-176(24x24)) - 3. Original Datasheet Pinout
Uncropped datasheet pin diagramExpand ›
4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS
STM32H7A3IGT6 (LQFP-176(24x24)) - 4. Package Dimensions (D×E×A)
LQFP-176(24x24) · 24.00×24.00mm · Pitch 0.50mmExpand ›
5. Recommended Land PatternLAND PATTERN
STM32H7A3IGT6 (LQFP-176(24x24)) - 5. Recommended Land Pattern
IPC-7351B Footprint (176 Pads)Expand ›
6. Application SchematicSCHEMATIC
STM32H7A3IGT6 (LQFP-176(24x24)) - 6. Application Schematic
Typical Application SchematicExpand ›
Original Datasheet Pinouts & Technical Drawings (29 figures · Page 1/3)
Showing 1–12 of 29 uncropped original figures for STM32H7A3IGT / STM32H7A3NIH / STM32H7A3VIH
P1 · p01_fig01EXACT PACKAGE
STM32H7A3IGT6 (LQFP-176(24x24)) — WLCSP132 (4.57 X 4.37 mm) | LQFP64 (10 x 10 mm) | LQFP100 (14 x 14 mm) | LQFP144 (20x20 mm) | LQFP176 (24 x 24 mm) | TFBGA100 | (8 x 8 mm) TFBGA216 (13x13 mm) | TFBGA225 (13x13 mm) | FBGA | UFBGA169 | (7 x 7 mm) UFBGA176+25 | (10x10 mm) | F
WLCSP132 (4.57 X 4.37 mm) | LQFP64 (10 x 10 mm) | LQFP100 (14 x 14 mm) | LQFP144 (20x20 mm) | LQFP176 (24 x 24 mm) | TFBGA100 | (8 x 8 mm) TFBGA216 (13x13 mm) | TFBGA225 (13x13 mm) | FBGA | UFBGA169 | (7 x 7 mm) UFBGA176+25 | (10x10 mm) | F
P42 · p42_fig01EXACT PACKAGE
STM32H7A3IGT6 (LQFP-176(24x24)) — Figure 9. LQFP176 (STM32H7A3xI/G with SMPS) pinout
Figure 9. LQFP176 (STM32H7A3xI/G with SMPS) pinout
P43 · p43_fig01EXACT PACKAGE
STM32H7A3IGT6 (LQFP-176(24x24)) — Figure 10. LQFP176 (STM32H7A3xI/G without SMPS) pinout
Figure 10. LQFP176 (STM32H7A3xI/G without SMPS) pinout
P204 · p204_fig01EXACT PACKAGE
STM32H7A3IGT6 (LQFP-176(24x24)) — Figure 98. LQFP - 176 pins, 24 x 24 mm low profile quad flat package recommended footprint
Figure 98. LQFP - 176 pins, 24 x 24 mm low profile quad flat package recommended footprint
P205 · p205_fig01EXACT PACKAGE
STM32H7A3IGT6 (LQFP-176(24x24)) — Figure 99. LQFP176 marking example (package top view)
Figure 99. LQFP176 marking example (package top view)
P50 · p50_fig011957×901px
STM32H7A3IGT6 (LQFP-176(24x24)) — DFSDM1_DATIN3,
DFSDM1_DATIN3,
P82 · p82_fig011501×2357px
STM32H7A3IGT6 (LQFP-176(24x24)) — Figure 21. Power supply scheme
Figure 21. Power supply scheme
P111 · p111_fig011371×461px
STM32H7A3IGT6 (LQFP-176(24x24)) — Figure 32. Typical application with an 8 MHz crystal
Figure 32. Typical application with an 8 MHz crystal
P154 · p154_fig011317×520px
STM32H7A3IGT6 (LQFP-176(24x24)) — Figure 56. Typical connection diagram using the ADC
Figure 56. Typical connection diagram using the ADC
P154 · p154_fig021133×781px
STM32H7A3IGT6 (LQFP-176(24x24)) — Figure 57. Power supply and reference decoupling (VREF+ not connected to VDDA)
Figure 57. Power supply and reference decoupling (VREF+ not connected to VDDA)
P189 · p189_fig02729×682px
STM32H7A3IGT6 (LQFP-176(24x24)) — Figure 83. LQFP - 64 pin, 10 x 10 mm low-profile quad flat recommended footprint
Figure 83. LQFP - 64 pin, 10 x 10 mm low-profile quad flat recommended footprint
P203 · p203_fig01937×1015px
STM32H7A3IGT6 (LQFP-176(24x24)) — Figure 97. LQFP - 176 pins, 24 x 24 mm low profile quad flat package outline
Figure 97. LQFP - 176 pins, 24 x 24 mm low profile quad flat package outline
Page 1 / 3 (29 extracted figures)

Technical Specifications & Part Details (STM32H7A3IGT6)

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)
Embedded Microcontroller Unit (MCU)
Detailed Overview:STM32H7A3IGT6 (LQFP-176(24x24)) is a 176-pin embedded microcontroller unit (mcu) featuring a 24.00 × 24.00 × 1.40 mm mechanical envelope (lead pitch e = 0.50 mm). Rated for 3.0V ~ 3.6V (Typ 3.3V) supply operation across -40°C ~ +85°C (Industrial Grade) with integrated USB, UART, SPI, I2C, I2S, ADC, DAC, PWM, SDIO, JTAG / SWD, IrDA, RTC/CLK interfaces.
Operating Supply VoltageV_CC / V_DD
3.0V ~ 3.6V (Typ 3.3V)
Place 100nF + 10µF X7R decoupling capacitors < 2mm from supply pins
Ambient Operating TemperatureT_A
-40°C ~ +85°C (Industrial Grade)
Industrial temperature grade; T_J(max) = +125°C
Clock / RF Operating Frequencyf_CLK / f_RF
280 MHz
Extracted from authoritative PDF specification tables
Current & Power RatingI_OUT / I_CC
I_GPIO(max) = ±20 mA / pin | I_VDD(total) ≤ 150 mA
Observe per-pin absolute maximum current limits
Package Envelope (D × E × A)D × E × A
24.00 × 24.00 × 1.40 mm (A1=0.10 mm)
Package family: LQFP (LQFP-176(24x24))
Pin Count & Lead PitchN / e
176 Pins | Pitch e = 0.50 mm (19.7 mil)
Normalized to Center-to-Center Span C per IPC-7351B
Integrated Peripheral InterfacesBuses
USB, UART, SPI, I2C, I2S, ADC, DAC, PWM, SDIO, JTAG / SWD, IrDA, RTC/CLK
Cross-linked with 4D Pinout & Schematic Symbol
Reflow & Moisture SensitivityIPC / MSL
IPC-7351B Level B | J-STD-020 (Peak 260°C) | MSL-3
60% windowed solder paste stencil on thermal EPAD
Engineering Safety Alert: Boot Strapping Pin Alert (BOOT0): Do not force conflicting external pull-ups/pull-downs during POR reset.
Engineering Safety Alert: Connect exposed thermal pad (if present) to internal ground plane via 0.3mm stitched thermal vias.

5-Point Standards Verification

Automated compliance checks prior to export
5/5 PASS
IEEE-315 Symbol176 auto-grouped pins
OK
IPC-7351B Land Pattern176 pads · Pitch 0.50mm
OK
IPC-7525 60% Solder PasteReflow 1:1 Standard
OK
DFM Rules JLCPCB / PCBWayMin pad clearance: 0.25mm
OK
3D STEP AP214 & GLBAligned coordinate origin (0,0,0)
OK

Hardware Verification & Community Engineering Reviews

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet
5.00 PCB Verified
IPC-7351B

Family Variants & Same Datasheet Chips — STM32H7A3IGT / STM32H7A3NIH / STM32H7A3VIH (9)

Select package variant or sibling MPN sharing this datasheet

Mechanical Dimensions & Land Pattern (LQFP-176(24x24))

Extracted from Datasheet & IPC-7351B Normalized
mm
Package Body (D × E)Nominal
24.00 × 24.00 mm
Height (A) & Pitch (e)IPC-7351B
A=1.40mm · e=0.50mm
Pad Size (W × L)Level B
0.30 × 1.25 mm
Pins / Total PadsTopology
176P / 176Pad (QUAD_ROW)

Recommended Companion BOM & Drop-In Equivalents

Passive external components per reference schematic and 1:1 pin-compatible alternatives
DFM READY
Designator / Replacement MPNValue / PackageFunction & PCB Layout Rule
N/A
BOM
Per application circuit
LQFP-176(24x24)
Size power & signal trace widths for rated load current following IPC-2221 clearance rules.

Technical Frequently Asked Questions (FAQ) — STM32H7A3IGT6 (LQFP-176(24x24))

Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formats
IPC-7351B / IEEE-315

What is the Pinout and operating voltage specification of STM32H7A3IGT6 (LQFP-176(24x24))?

Manufactured by ST, the STM32H7A3IGT6 is housed in a LQFP-176(24x24) package with 176 pins and a 0.50 mm lead pitch. Key pins include: 1 (PE2: Multiplexed I/O & Peripheral Pin PE2 (General)), 2 (PE3: Multiplexed I/O & Peripheral Pin PE3 (General)), 3 (PE4: Multiplexed I/O & Peripheral Pin PE4 (General)), 4 (PE5: Multiplexed I/O & Peripheral Pin PE5 (General)), 5 (PE6: Multiplexed I/O & Peripheral Pin PE6 (General)), 6 (VBAT: Power Supply Input (VBAT — 3.3V VDD (Max 4.0V))).

What are the IPC-7351B PCB Footprint dimensions for STM32H7A3IGT6?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), STM32H7A3IGT6 (LQFP-176(24x24)) has a nominal body envelope of 24.00 × 24.00 mm, pitch e = 0.50 mm, and 176 copper pads.

Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for STM32H7A3IGT6?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for STM32H7A3IGT6 (ST, LQFP-176(24x24)) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.

Static Reference Appendix: Pinout Table (176 pins) & STM32H7A3IGT / STM32H7A3NIH / STM32H7A3VIH Family VariantsExpand static table
Pin #Signal NameElectrical TypeFunctional Description & Design Notes
1PE2Digital_IOSignal terminal PE2 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE2. Supported peripheral buses: General.
2PE3Digital_IOSignal terminal PE3 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE3. Supported peripheral buses: General.
3PE4Digital_IOSignal terminal PE4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE4. Supported peripheral buses: General.
4PE5Digital_IOSignal terminal PE5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE5. Supported peripheral buses: General.
5PE6Digital_IOSignal terminal PE6 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PE6. Supported peripheral buses: General.
6VBATPower_InPrimary positive power supply input (VBAT) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V).
7PI8Digital_IOSignal terminal PI8 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PI8. Supported peripheral buses: General.
8PC13Digital_IOSignal terminal PC13 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC13. Supported peripheral buses: General.
9PC14-OSC32_INDigital_IOSignal terminal PC14-OSC32_IN (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC14-OSC32_IN. Supported peripheral buses: RTC/CLK.
10PC15-OSC32_OUTDigital_IOSignal terminal PC15-OSC32_OUT (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC15-OSC32_OUT. Supported peripheral buses: RTC/CLK.
11PI9Digital_IOSignal terminal PI9 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PI9. Supported peripheral buses: General.
12PI10Digital_IOSignal terminal PI10 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PI10. Supported peripheral buses: General.
13PI11Digital_IOSignal terminal PI11 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PI11. Supported peripheral buses: General.
14VSSGND0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks.
15VDDPower_InPrimary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V).
16PF0Digital_IOSignal terminal PF0 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF0. Supported peripheral buses: General.
17PF1Digital_IOSignal terminal PF1 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF1. Supported peripheral buses: General.
18PF2Digital_IOSignal terminal PF2 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF2. Supported peripheral buses: General.
19PF3Digital_IOSignal terminal PF3 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF3. Supported peripheral buses: General.
20PF4Digital_IOSignal terminal PF4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF4. Supported peripheral buses: General.
21PF5Digital_IOSignal terminal PF5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF5. Supported peripheral buses: General.
22VSSGND0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks.
23VDDPower_InPrimary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V).
24PF6Digital_IOSignal terminal PF6 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF6. Supported peripheral buses: General.
25PF7Digital_IOSignal terminal PF7 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF7. Supported peripheral buses: General.
26PF8Digital_IOSignal terminal PF8 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF8. Supported peripheral buses: General.
27PF9Digital_IOSignal terminal PF9 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF9. Supported peripheral buses: General.
28PF10Digital_IOSignal terminal PF10 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF10. Supported peripheral buses: General.
29PH0-OSC_INDigital_IOSignal terminal PH0-OSC_IN (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PH0-OSC_IN. Supported peripheral buses: RTC/CLK.
30PH1-OSC_OUTDigital_IOSignal terminal PH1-OSC_OUT (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PH1-OSC_OUT. Supported peripheral buses: RTC/CLK.
31NRSTDigital_IOActive-low hardware reset terminal (NRST): pulling this pin Low resets the processor core and peripherals.
32PC0Digital_IOSignal terminal PC0 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC0. Supported peripheral buses: General.
33PC1Digital_IOSignal terminal PC1 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC1. Supported peripheral buses: General.
34PC2_CDigital_IOSignal terminal PC2_C (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC2_C. Supported peripheral buses: General.
35PC3_CDigital_IOSignal terminal PC3_C (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC3_C. Supported peripheral buses: General.
36VDDPower_InPrimary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V).
37VSSAGND0V electrical ground return terminal (VSSA) for internal core logic, I/O drivers, and analog sub-blocks.
38VREF+AnalogSignal terminal VREF+ (Analog, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: VREF+. Supported peripheral buses: General.
39VDDAPower_InPrimary positive power supply input (VDDA) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V).
40PA0Digital_IOSignal terminal PA0 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA0. Supported peripheral buses: General.
41PA1Digital_IOSignal terminal PA1 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA1. Supported peripheral buses: General.
42PA2Digital_IOSignal terminal PA2 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA2. Supported peripheral buses: General.
43PH2Digital_IOSignal terminal PH2 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PH2. Supported peripheral buses: General.
44PH3Digital_IOSignal terminal PH3 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PH3. Supported peripheral buses: General.
45PH4Digital_IOSignal terminal PH4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PH4. Supported peripheral buses: General.
46PH5Digital_IOSignal terminal PH5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PH5. Supported peripheral buses: General.
47PA3Digital_IOSignal terminal PA3 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA3. Supported peripheral buses: General.
48VSSGND0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks.
49VDDPower_InPrimary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V).
50PA4Digital_IOSignal terminal PA4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA4. Supported peripheral buses: General.
51PA5Digital_IOSignal terminal PA5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA5. Supported peripheral buses: General.
52PA6Digital_IOSignal terminal PA6 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA6. Supported peripheral buses: General.
53PA7Digital_IOSignal terminal PA7 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PA7. Supported peripheral buses: General.
54PC4Digital_IOSignal terminal PC4 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC4. Supported peripheral buses: General.
55PC5Digital_IOSignal terminal PC5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC5. Supported peripheral buses: General.
56PB0Digital_IOSignal terminal PB0 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB0. Supported peripheral buses: General.
57PB1Digital_IOSignal terminal PB1 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB1. Supported peripheral buses: General.
58PB2Digital_IOSignal terminal PB2 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PB2. Supported peripheral buses: General.
59PF11Digital_IOSignal terminal PF11 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF11. Supported peripheral buses: General.
60PF12Digital_IOSignal terminal PF12 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF12. Supported peripheral buses: General.
61VSSGND0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks.
62VDDPower_InPrimary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V).
63PF13Digital_IOSignal terminal PF13 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF13. Supported peripheral buses: General.
64PF14Digital_IOSignal terminal PF14 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PF14. Supported peripheral buses: General.
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