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STM32H7B3IIT6Q (LQFP-176(24x24)) — Symbol, Footprint IPC-7351B & 3D STEP Model

STM32H7B3IIT6Q

STID: C1236688LQFP-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 · STM32H7B3IIT6Q (LQFP-176(24x24))1PE22PE33PE4435-657-869710811-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26-27-28-2913301431153216331734PC035PC1362037223823392440254126422743-44-45-46-47284829493050315132523353345435553656375738583959-60-61-62-63-64-65-66-67-6840694170-71-72-73-74-75-76-77-78-794280438144824783-84-85-86-87-88-176-175-174-173-172100171-170-169971689616795166941659316492163911629016189160-159-158-157-156-155-154-153-152-151-150-149-148-1478714686145851448414383142821418114080139791387813777136-135-134-133-132-131-130-129-128-12775126731257212471123701226912168120671196611865117641166311562114-113-112-111-110-109-108-107-106-1056110460103591025810157100569955985497539652955194509349924891-90-89-Grid 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=23.90mm · Pitch e=0.50mmD=23.90mm-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: 23.90mm × 23.90mm · 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)
43I/OMultiplexed I/O & Peripheral Pin 3 (SPI)
5-I/OMultiplexed I/O & Peripheral Pin - (SPI)
65I/OMultiplexed I/O & Peripheral Pin 5 (General)
7-I/OMultiplexed I/O & Peripheral Pin - (RTC/CLK)
86I/OMultiplexed I/O & Peripheral Pin 6 (RTC/CLK)
97I/OMultiplexed I/O & Peripheral Pin 7 (RTC/CLK)
108I/OMultiplexed I/O & Peripheral Pin 8 (RTC/CLK)
11-I/OMultiplexed I/O & Peripheral Pin - (General)
12-I/OMultiplexed I/O & Peripheral Pin - (General)
13-I/OMultiplexed I/O & Peripheral Pin - (General)
14-I/OMultiplexed I/O & Peripheral Pin - (General)
15-I/OMultiplexed I/O & Peripheral Pin - (General)
16-I/OMultiplexed I/O & Peripheral Pin - (I2C)
17-I/OMultiplexed I/O & Peripheral Pin - (I2C)
18-I/OMultiplexed I/O & Peripheral Pin - (I2C)
19-I/OMultiplexed I/O & Peripheral Pin - (General)
20-I/OMultiplexed I/O & Peripheral Pin - (General)
21-I/OMultiplexed I/O & Peripheral Pin - (General)
22-I/OMultiplexed I/O & Peripheral Pin - (General)
23-I/OMultiplexed I/O & Peripheral Pin - (General)
24-I/OMultiplexed I/O & Peripheral Pin - (General)
25-I/OMultiplexed I/O & Peripheral Pin - (General)
26-I/OMultiplexed I/O & Peripheral Pin - (SPI)
27-I/OMultiplexed I/O & Peripheral Pin - (UART)
28-I/OMultiplexed I/O & Peripheral Pin - (General)
2913I/OMultiplexed I/O & Peripheral Pin 13 (RTC/CLK)
3014I/OMultiplexed I/O & Peripheral Pin 14 (RTC/CLK)
3115I/OMultiplexed I/O & Peripheral Pin 15 (General)
3216I/OMultiplexed I/O & Peripheral Pin 16 (ADC)
3317I/OMultiplexed I/O & Peripheral Pin 17 (SPI, ADC)
34PC0I/OMultiplexed I/O & Peripheral Pin PC0 (General)
35PC1I/OMultiplexed I/O & Peripheral Pin PC1 (General)
3620I/OMultiplexed I/O & Peripheral Pin 20 (General)
3722I/OMultiplexed I/O & Peripheral Pin 22 (General)
3823I/OMultiplexed I/O & Peripheral Pin 23 (General)
3924I/OMultiplexed I/O & Peripheral Pin 24 (General)
4025I/OMultiplexed I/O & Peripheral Pin 25 (UART, SPI, ADC)
4126I/OMultiplexed I/O & Peripheral Pin 26 (UART, ADC)
4227I/OMultiplexed I/O & Peripheral Pin 27 (UART, SPI, ADC, PWM)
43-I/OMultiplexed I/O & Peripheral Pin - (General)
44-I/OMultiplexed I/O & Peripheral Pin - (General)
45-I/OMultiplexed I/O & Peripheral Pin - (I2C)
46-I/OMultiplexed I/O & Peripheral Pin - (SPI, I2C)
4728I/OMultiplexed I/O & Peripheral Pin 28 (UART, ADC)
4829I/OMultiplexed I/O & Peripheral Pin 29 (General)
4930I/OMultiplexed I/O & Peripheral Pin 30 (General)
5031I/OMultiplexed I/O & Peripheral Pin 31 (UART, SPI, ADC)
5132I/OMultiplexed I/O & Peripheral Pin 32 (SPI, ADC, DAC)
5233I/OMultiplexed I/O & Peripheral Pin 33 (SPI, ADC)
5334I/OMultiplexed I/O & Peripheral Pin 34 (SPI, ADC, PWM)
5435I/OMultiplexed I/O & Peripheral Pin 35 (ADC)
5536I/OMultiplexed I/O & Peripheral Pin 36 (ADC)
5637I/OMultiplexed I/O & Peripheral Pin 37 (UART, SPI, ADC, PWM)
5738I/OMultiplexed I/O & Peripheral Pin 38 (ADC, PWM)
5839I/OMultiplexed I/O & Peripheral Pin 39 (SPI, RTC/CLK)
59-I/OMultiplexed I/O & Peripheral Pin - (SPI, ADC)
60-I/OMultiplexed I/O & Peripheral Pin - (ADC)
61-I/OMultiplexed I/O & Peripheral Pin - (General)
62-I/OMultiplexed I/O & Peripheral Pin - (General)
63-I/OMultiplexed I/O & Peripheral Pin - (ADC)
64-I/OMultiplexed I/O & Peripheral Pin - (ADC)
65-I/OMultiplexed I/O & Peripheral Pin - (I2C)
66-I/OMultiplexed I/O & Peripheral Pin - (UART)
67-I/OMultiplexed I/O & Peripheral Pin - (UART)
6840I/OMultiplexed I/O & Peripheral Pin 40 (General)
6941I/OMultiplexed I/O & Peripheral Pin 41 (PWM)
70-I/OMultiplexed I/O & Peripheral Pin - (UART, PWM)
71-I/OMultiplexed I/O & Peripheral Pin - (General)
72-I/OMultiplexed I/O & Peripheral Pin - (General)
73-I/OMultiplexed I/O & Peripheral Pin - (UART, PWM)
74-I/OMultiplexed I/O & Peripheral Pin - (SPI, PWM)
75-I/OMultiplexed I/O & Peripheral Pin - (SPI, PWM)
76-I/OMultiplexed I/O & Peripheral Pin - (SPI, PWM)
77-I/OMultiplexed I/O & Peripheral Pin - (PWM)
78-I/OMultiplexed I/O & Peripheral Pin - (General)
7942I/OMultiplexed I/O & Peripheral Pin 42 (UART, SPI, I2C, PWM)
8043I/OMultiplexed I/O & Peripheral Pin 43 (UART, I2C, PWM)
8144I/OMultiplexed I/O & Peripheral Pin 44 (General)
8247I/OMultiplexed I/O & Peripheral Pin 47 (General)
83-I/OMultiplexed I/O & Peripheral Pin - (SPI, I2C)
84-I/OMultiplexed I/O & Peripheral Pin - (I2C)
85-I/OMultiplexed I/O & Peripheral Pin - (General)
86-I/OMultiplexed I/O & Peripheral Pin - (I2C)
87-I/OMultiplexed I/O & Peripheral Pin - (I2C, PWM)
88-I/OMultiplexed I/O & Peripheral Pin - (I2C)
89-I/OMultiplexed I/O & Peripheral Pin - (I2C)
90-I/OMultiplexed I/O & Peripheral Pin - (General)
91-I/OMultiplexed I/O & Peripheral Pin - (General)
9248I/OMultiplexed I/O & Peripheral Pin 48 (UART, SPI, I2C)
9349I/OMultiplexed I/O & Peripheral Pin 49 (UART, SPI, PWM)
9450I/OMultiplexed I/O & Peripheral Pin 50 (UART, SPI, PWM)
9551I/OMultiplexed I/O & Peripheral Pin 51 (UART, SPI, RTC/CLK)
9652I/OMultiplexed I/O & Peripheral Pin 52 (General)
9753I/OMultiplexed I/O & Peripheral Pin 53 (General)
9854I/OMultiplexed I/O & Peripheral Pin 54 (UART)
9955I/OMultiplexed I/O & Peripheral Pin 55 (UART, SPI, I2C)
10056I/OMultiplexed I/O & Peripheral Pin 56 (UART, I2C)
10157I/OMultiplexed I/O & Peripheral Pin 57 (General)
10258I/OMultiplexed I/O & Peripheral Pin 58 (General)
10359I/OMultiplexed I/O & Peripheral Pin 59 (General)
10460I/OMultiplexed I/O & Peripheral Pin 60 (UART, PWM)
10561I/OMultiplexed I/O & Peripheral Pin 61 (UART, PWM)
106-I/OMultiplexed I/O & Peripheral Pin - (General)
107-I/OMultiplexed I/O & Peripheral Pin - (General)
108-I/OMultiplexed I/O & Peripheral Pin - (General)
109-I/OMultiplexed I/O & Peripheral Pin - (General)
110-I/OMultiplexed I/O & Peripheral Pin - (General)
111-I/OMultiplexed I/O & Peripheral Pin - (General)
112-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
113-I/OMultiplexed I/O & Peripheral Pin - (General)
114-I/OMultiplexed I/O & Peripheral Pin - (General)
11562I/OMultiplexed I/O & Peripheral Pin 62 (General)
11663I/OMultiplexed I/O & Peripheral Pin 63 (General)
11764I/OMultiplexed I/O & Peripheral Pin 64 (UART)
11865I/OMultiplexed I/O & Peripheral Pin 65 (UART, I2C, RTC/CLK)
11966I/OMultiplexed I/O & Peripheral Pin 66 (UART, I2C, RTC/CLK)
12067I/OMultiplexed I/O & Peripheral Pin 67 (SPI, I2C, PWM)
12168I/OMultiplexed I/O & Peripheral Pin 68 (UART, PWM)
12269I/OMultiplexed I/O & Peripheral Pin 69 (UART, SPI, PWM)
12370I/OMultiplexed I/O & Peripheral Pin 70 (UART, SPI)
12471I/OMultiplexed I/O & Peripheral Pin 71 (SWD/JTAG)
12572I/OMultiplexed I/O & Peripheral Pin 72 (General)
12673I/OMultiplexed I/O & Peripheral Pin 73 (General)
12775I/OMultiplexed I/O & Peripheral Pin 75 (General)
128-I/OMultiplexed I/O & Peripheral Pin - (PWM)
129-I/OMultiplexed I/O & Peripheral Pin - (PWM)
130-I/OMultiplexed I/O & Peripheral Pin - (PWM)
131-I/OMultiplexed I/O & Peripheral Pin - (SPI)
132-I/OMultiplexed I/O & Peripheral Pin - (SPI)
133-I/OMultiplexed I/O & Peripheral Pin - (SPI, PWM)
134-I/OMultiplexed I/O & Peripheral Pin - (SPI)
135-I/OMultiplexed I/O & Peripheral Pin - (General)
136-I/OMultiplexed I/O & Peripheral Pin - (General)
13777I/OMultiplexed I/O & Peripheral Pin 77 (SWD/JTAG)
13878I/OMultiplexed I/O & Peripheral Pin 78 (UART, SPI, SWD/JTAG)
13979I/OMultiplexed I/O & Peripheral Pin 79 (UART, SPI)
14080I/OMultiplexed I/O & Peripheral Pin 80 (UART, SPI)
14181I/OMultiplexed I/O & Peripheral Pin 81 (UART, SPI)
14282I/OMultiplexed I/O & Peripheral Pin 82 (UART)
14383I/OMultiplexed I/O & Peripheral Pin 83 (General)
14484I/OMultiplexed I/O & Peripheral Pin 84 (UART)
14585I/OMultiplexed I/O & Peripheral Pin 85 (UART, SPI)
14686I/OMultiplexed I/O & Peripheral Pin 86 (UART)
14787I/OMultiplexed I/O & Peripheral Pin 87 (UART)
148-I/OMultiplexed I/O & Peripheral Pin - (General)
149-I/OMultiplexed I/O & Peripheral Pin - (General)
150-I/OMultiplexed I/O & Peripheral Pin - (SPI)
151-I/OMultiplexed I/O & Peripheral Pin - (UART)
152-I/OMultiplexed I/O & Peripheral Pin - (SPI)
153-I/OMultiplexed I/O & Peripheral Pin - (SPI)
154-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
155-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
156-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
157-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
158-I/OMultiplexed I/O & Peripheral Pin - (General)
159-I/OMultiplexed I/O & Peripheral Pin - (General)
160-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
16189I/OMultiplexed I/O & Peripheral Pin 89 (UART, SPI, SWD/JTAG)
16290I/OMultiplexed I/O & Peripheral Pin 90 (UART, SPI, SWD/JTAG)
16391I/OMultiplexed I/O & Peripheral Pin 91 (UART, SPI, I2C)
16492I/OMultiplexed I/O & Peripheral Pin 92 (UART, I2C)
16593I/OMultiplexed I/O & Peripheral Pin 93 (I2C)
16694I/OMultiplexed I/O & Peripheral Pin 94 (General)
16795I/OMultiplexed I/O & Peripheral Pin 95 (UART, I2C)
16896I/OMultiplexed I/O & Peripheral Pin 96 (UART, I2C)
16997I/OMultiplexed I/O & Peripheral Pin 97 (UART)
170-I/OMultiplexed I/O & Peripheral Pin - (General)
171-I/OMultiplexed I/O & Peripheral Pin - (General)
172100I/OMultiplexed I/O & Peripheral Pin 100 (General)
173-I/OMultiplexed I/O & Peripheral Pin - (General)
174-I/OMultiplexed I/O & Peripheral Pin - (PWM)
175-I/OMultiplexed I/O & Peripheral Pin - (PWM)
176-I/OMultiplexed I/O & Peripheral Pin - (PWM)
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 + 17 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: STM32H7B3IIT6Q (ST · LQFP-176(24x24))
Scroll, search text (Ctrl+F), or expand directly inside the embedded PDF reader below
1. Realistic 3D PackageREPRESENTATIVE
STM32H7B3IIT6Q (LQFP-176(24x24)) - 1. Realistic 3D Package
Detailed solid 3D bodyExpand ›
2. Standard Pinout (Top View)CLEANROOM PINOUT
STM32H7B3IIT6Q (LQFP-176(24x24)) - 2. Standard Pinout (Top View)
True package pinout (176 pins)Expand ›
3. Original Datasheet PinoutPDF PINOUT
STM32H7B3IIT6Q (LQFP-176(24x24)) - 3. Original Datasheet Pinout
Uncropped datasheet pin diagramExpand ›
4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS
STM32H7B3IIT6Q (LQFP-176(24x24)) - 4. Package Dimensions (D×E×A)
LQFP-176(24x24) · 23.90×23.90mm · Pitch 0.50mmExpand ›
5. Recommended Land PatternLAND PATTERN
STM32H7B3IIT6Q (LQFP-176(24x24)) - 5. Recommended Land Pattern
IPC-7351B Footprint (176 Pads)Expand ›
6. Application SchematicSCHEMATIC
STM32H7B3IIT6Q (LQFP-176(24x24)) - 6. Application Schematic
Typical Application SchematicExpand ›
Original Datasheet Pinouts & Technical Drawings (17 figures · Page 1/2)
Showing 1–12 of 17 uncropped original figures for STM32H7B3IIT
P1 · p01_fig01EXACT PACKAGE
STM32H7B3IIT6Q (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
P44 · p44_fig01EXACT PACKAGE
STM32H7B3IIT6Q (LQFP-176(24x24)) — Figure 12. LQFP176 (STM32H7B3xI with SMPS) pinout
Figure 12. LQFP176 (STM32H7B3xI with SMPS) pinout
P45 · p45_fig01EXACT PACKAGE
STM32H7B3IIT6Q (LQFP-176(24x24)) — Figure 13. LQFP176 (STM32H7B3xI without SMPS) pinout
Figure 13. LQFP176 (STM32H7B3xI without SMPS) pinout
P203 · p203_fig01EXACT PACKAGE
STM32H7B3IIT6Q (LQFP-176(24x24)) — Figure 97. LQFP176 - Outline
Figure 97. LQFP176 - Outline
P204 · p204_fig01EXACT PACKAGE
STM32H7B3IIT6Q (LQFP-176(24x24)) — k 0° - 7° 0° - 7°
k 0° - 7° 0° - 7°
P204 · p204_fig02EXACT PACKAGE
STM32H7B3IIT6Q (LQFP-176(24x24)) — Figure 98. LQFP176 - Recommended footprint
Figure 98. LQFP176 - Recommended footprint
P44 · p44_fig01P44
STM32H7B3IIT6Q (LQFP-176(24x24)) — Datasheet Page 44 (p44_fig01)
Datasheet Page 44 (p44_fig01)
P50 · p50_fig011957×901px
STM32H7B3IIT6Q (LQFP-176(24x24)) — DFSDM1_DATIN3,
DFSDM1_DATIN3,
P81 · p81_fig011500×2357px
STM32H7B3IIT6Q (LQFP-176(24x24)) — Figure 21. Power supply scheme
Figure 21. Power supply scheme
P81 · p81_fig01P81
STM32H7B3IIT6Q (LQFP-176(24x24)) — Datasheet Page 81 (p81_fig01)
Datasheet Page 81 (p81_fig01)
P110 · p110_fig011371×461px
STM32H7B3IIT6Q (LQFP-176(24x24)) — Figure 32. Typical application with an 8 MHz crystal
Figure 32. Typical application with an 8 MHz crystal
P153 · p153_fig011317×520px
STM32H7B3IIT6Q (LQFP-176(24x24)) — Figure 56. Typical connection diagram using the ADC
Figure 56. Typical connection diagram using the ADC
Page 1 / 2 (17 extracted figures)

Technical Specifications & Part Details (STM32H7B3IIT6Q)

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)
Embedded Microcontroller Unit (MCU)
Detailed Overview:STM32H7B3IIT6Q (LQFP-176(24x24)) is a 176-pin embedded microcontroller unit (mcu) featuring a 23.90 × 23.90 × 1.60 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, SWD/JTAG 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
132 5V-tolerant (FT) pins detected
Package Envelope (D × E × A)D × E × A
23.90 × 23.90 × 1.60 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, SWD/JTAG
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 (94): 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

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

Extracted from Datasheet & IPC-7351B Normalized
mm
Package Body (D × E)Nominal
23.90 × 23.90 mm
Height (A) & Pitch (e)IPC-7351B
A=1.60mm · 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) — STM32H7B3IIT6Q (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 STM32H7B3IIT6Q (LQFP-176(24x24))?

Manufactured by ST, the STM32H7B3IIT6Q 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 (3: Multiplexed I/O & Peripheral Pin 3 (SPI)), 5 (-: Multiplexed I/O & Peripheral Pin - (SPI)), 6 (5: Multiplexed I/O & Peripheral Pin 5 (General)).

What are the IPC-7351B PCB Footprint dimensions for STM32H7B3IIT6Q?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), STM32H7B3IIT6Q (LQFP-176(24x24)) has a nominal body envelope of 23.90 × 23.90 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 STM32H7B3IIT6Q?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for STM32H7B3IIT6Q (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) & STM32H7B3IIT 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.
43Digital_IOSignal terminal 3 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI4_SAI1SCK. Supported peripheral buses: SPI.
5-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI4_SAI1SD. Supported peripheral buses: SPI.
65Digital_IOSignal terminal 5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 5. Supported peripheral buses: General.
7-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: RTC/CLK.
86Digital_IOSignal terminal 6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 6. Supported peripheral buses: RTC/CLK.
97Digital_IOSignal terminal 7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 7. Supported peripheral buses: RTC/CLK.
108Digital_IOSignal terminal 8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 8. Supported peripheral buses: RTC/CLK.
11-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
12-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
13-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
14-Digital_IOSignal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
15-Digital_IOSignal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
16-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SDAOCTOSPIM. Supported peripheral buses: I2C.
17-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SCLOCTOSPIM. Supported peripheral buses: I2C.
18-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SMBAOCTOSPIM. Supported peripheral buses: I2C.
19-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
20-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
21-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
22-Digital_IOSignal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
23-Digital_IOSignal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
24-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
25-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
26-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: SPI.
27-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: UART.
28-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
2913Digital_IOSignal terminal 13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 13. Supported peripheral buses: RTC/CLK.
3014Digital_IOSignal terminal 14 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 14. Supported peripheral buses: RTC/CLK.
3115Digital_IOSignal terminal 15 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 15. Supported peripheral buses: General.
3216Digital_IOSignal terminal 16 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 16. Supported peripheral buses: ADC.
3317Digital_IOSignal terminal 17 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MOSI. Supported peripheral buses: SPI, ADC.
34PC0Digital_IOSignal terminal PC0 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC0. Supported peripheral buses: General.
35PC1Digital_IOSignal terminal PC1 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC1. Supported peripheral buses: General.
3620Digital_IOSignal terminal 20 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 20. Supported peripheral buses: General.
3722Digital_IOSignal terminal 22 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 22. Supported peripheral buses: General.
3823Digital_IOSignal terminal 23 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 23. Supported peripheral buses: General.
3924Digital_IOSignal terminal 24 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 24. Supported peripheral buses: General.
4025Digital_IOSignal terminal 25 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI6_WSUSART2. Supported peripheral buses: UART, SPI, ADC.
4126Digital_IOSignal terminal 26 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 26. Supported peripheral buses: UART, ADC.
4227Digital_IOSignal terminal 27 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 27. Supported peripheral buses: UART, SPI, ADC, PWM.
43-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
44-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
45-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: I2C.
46-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: SPI, I2C.
4728Digital_IOSignal terminal 28 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 28. Supported peripheral buses: UART, ADC.
4829Digital_IOSignal terminal 29 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 29. Supported peripheral buses: General.
4930Digital_IOSignal terminal 30 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 30. Supported peripheral buses: General.
5031Digital_IOSignal terminal 31 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: SPI1_NSS, SPI6_WSDCMI. Supported peripheral buses: UART, SPI, ADC.
5132Digital_IOSignal terminal 32 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: SPI1_CKSPI6SCK. Supported peripheral buses: SPI, ADC, DAC.
5233Digital_IOSignal terminal 33 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: SPI1_SDIOCTOSPIM, SPI6_ITIM13. Supported peripheral buses: SPI, ADC.
5334Digital_IOSignal terminal 34 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 34. Supported peripheral buses: SPI, ADC, PWM.
5435Digital_IOSignal terminal 35 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 35. Supported peripheral buses: ADC.
5536Digital_IOSignal terminal 36 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 36. Supported peripheral buses: ADC.
5637Digital_IOSignal terminal 37 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 37. Supported peripheral buses: UART, SPI, ADC, PWM.
5738Digital_IOSignal terminal 38 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 38. Supported peripheral buses: ADC, PWM.
5839Digital_IOSignal terminal 39 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_SDOOCTOSPIM. Supported peripheral buses: SPI, RTC/CLK.
59-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI5_MOSIOCTOSPIM. Supported peripheral buses: SPI, ADC.
60-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: ADC.
61-Digital_IOSignal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
62-Digital_IOSignal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
63-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: ADC.
64-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: ADC.
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