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STM32H7A3ZIT6 (LQFP-144(20x20)) — Symbol, Footprint IPC-7351B & 3D STEP Model

STM32H7A3ZIT6

STID: C730224LQFP-144(20x20) · 144 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 · STM32H7A3ZIT6 (LQFP-144(20x20))1PE22PE33PE44PE55PE66576879810-11-12-13-14-15-16-17-18-19-20-21-22-2313241425152616271728PC2_C29PC3_C302031223223332434253526362737283829393040314132423343344435453646374738483949-50-51-52-53-54-55-56-57-5840594160-61-62-63-64-65-66-67-68-6942704371447247144100143-142-141971409613995138941379313692135911349013389132-131-130-129-128-127-126-125-124-123-122-12188120-1198711886117851168411583114821138111280111791107810977108751077310672105711047010369102681016710066996598649763966295-94-93-92-91-90-89-88-87-86618560845983588257815680557954785377527651755074497348Grid Pitch = 2.54mm (IEEE-315)-17.8-12.7-7.6-2.52.57.612.717.896.591.486.481.376.271.166.061.055.950.845.740.635.630.525.420.315.210.25.10-5.1-10.2-15.2-20.3-25.4-30.5-35.6-40.6-45.7-50.8-55.9-61.0-66.0-71.1-76.2-81.3-86.4-91.4-96.5mm
2. 2D FOOTPRINT
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144E=19.90mm · Pitch e=0.50mmD=19.90mm-17-15-13-11-9-7-5-3-113579111315171715131197531-1-3-5-7-9-11-13-15-17mm
3. 3D CAD MODEL
Package Body: 19.90mm × 19.90mm · Pitch: 0.50mm · Ruler Step: 1.00mmSynced <100ms

Synchronized Pinout (Symbol / 2D / 3D) (144/144)

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)
65I/OMultiplexed I/O & Peripheral Pin 5 (General)
76I/OMultiplexed I/O & Peripheral Pin 6 (RTC/CLK)
87I/OMultiplexed I/O & Peripheral Pin 7 (RTC/CLK)
98I/OMultiplexed I/O & Peripheral Pin 8 (RTC/CLK)
10-I/OMultiplexed I/O & Peripheral Pin - (I2C)
11-I/OMultiplexed I/O & Peripheral Pin - (I2C)
12-I/OMultiplexed I/O & Peripheral Pin - (I2C)
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 - (General)
17-I/OMultiplexed I/O & Peripheral Pin - (General)
18-I/OMultiplexed I/O & Peripheral Pin - (General)
19-I/OMultiplexed I/O & Peripheral Pin - (General)
20-I/OMultiplexed I/O & Peripheral Pin - (SPI)
21-I/OMultiplexed I/O & Peripheral Pin - (UART)
22-I/OMultiplexed I/O & Peripheral Pin - (General)
2313I/OMultiplexed I/O & Peripheral Pin 13 (RTC/CLK)
2414I/OMultiplexed I/O & Peripheral Pin 14 (RTC/CLK)
2515I/OMultiplexed I/O & Peripheral Pin 15 (General)
2616I/OMultiplexed I/O & Peripheral Pin 16 (ADC)
2717I/OMultiplexed I/O & Peripheral Pin 17 (SPI, ADC)
28PC2_CI/OMultiplexed I/O & Peripheral Pin PC2_C (General)
29PC3_CI/OMultiplexed I/O & Peripheral Pin PC3_C (General)
3020I/OMultiplexed I/O & Peripheral Pin 20 (General)
3122I/OMultiplexed I/O & Peripheral Pin 22 (General)
3223I/OMultiplexed I/O & Peripheral Pin 23 (General)
3324I/OMultiplexed I/O & Peripheral Pin 24 (General)
3425I/OMultiplexed I/O & Peripheral Pin 25 (UART, SPI, ADC)
3526I/OMultiplexed I/O & Peripheral Pin 26 (UART, ADC)
3627I/OMultiplexed I/O & Peripheral Pin 27 (UART, SPI, ADC, PWM)
3728I/OMultiplexed I/O & Peripheral Pin 28 (UART, ADC)
3829I/OMultiplexed I/O & Peripheral Pin 29 (General)
3930I/OMultiplexed I/O & Peripheral Pin 30 (General)
4031I/OMultiplexed I/O & Peripheral Pin 31 (UART, SPI, ADC)
4132I/OMultiplexed I/O & Peripheral Pin 32 (SPI, ADC, DAC)
4233I/OMultiplexed I/O & Peripheral Pin 33 (SPI, ADC)
4334I/OMultiplexed I/O & Peripheral Pin 34 (SPI, ADC, PWM)
4435I/OMultiplexed I/O & Peripheral Pin 35 (ADC)
4536I/OMultiplexed I/O & Peripheral Pin 36 (ADC)
4637I/OMultiplexed I/O & Peripheral Pin 37 (UART, SPI, ADC, PWM)
4738I/OMultiplexed I/O & Peripheral Pin 38 (ADC, PWM)
4839I/OMultiplexed I/O & Peripheral Pin 39 (SPI, RTC/CLK)
49-I/OMultiplexed I/O & Peripheral Pin - (SPI, ADC)
50-I/OMultiplexed I/O & Peripheral Pin - (ADC)
51-I/OMultiplexed I/O & Peripheral Pin - (General)
52-I/OMultiplexed I/O & Peripheral Pin - (General)
53-I/OMultiplexed I/O & Peripheral Pin - (ADC)
54-I/OMultiplexed I/O & Peripheral Pin - (ADC)
55-I/OMultiplexed I/O & Peripheral Pin - (I2C)
56-I/OMultiplexed I/O & Peripheral Pin - (UART)
57-I/OMultiplexed I/O & Peripheral Pin - (UART)
5840I/OMultiplexed I/O & Peripheral Pin 40 (General)
5941I/OMultiplexed I/O & Peripheral Pin 41 (PWM)
60-I/OMultiplexed I/O & Peripheral Pin - (UART, PWM)
61-I/OMultiplexed I/O & Peripheral Pin - (General)
62-I/OMultiplexed I/O & Peripheral Pin - (General)
63-I/OMultiplexed I/O & Peripheral Pin - (UART, PWM)
64-I/OMultiplexed I/O & Peripheral Pin - (SPI, PWM)
65-I/OMultiplexed I/O & Peripheral Pin - (SPI, PWM)
66-I/OMultiplexed I/O & Peripheral Pin - (SPI, PWM)
67-I/OMultiplexed I/O & Peripheral Pin - (PWM)
68-I/OMultiplexed I/O & Peripheral Pin - (General)
6942I/OMultiplexed I/O & Peripheral Pin 42 (UART, SPI, I2C, PWM)
7043I/OMultiplexed I/O & Peripheral Pin 43 (UART, I2C, PWM)
7144I/OMultiplexed I/O & Peripheral Pin 44 (General)
7247I/OMultiplexed I/O & Peripheral Pin 47 (General)
7348I/OMultiplexed I/O & Peripheral Pin 48 (UART, SPI, I2C)
7449I/OMultiplexed I/O & Peripheral Pin 49 (UART, SPI, PWM)
7550I/OMultiplexed I/O & Peripheral Pin 50 (UART, SPI, PWM)
7651I/OMultiplexed I/O & Peripheral Pin 51 (UART, SPI, RTC/CLK)
7752I/OMultiplexed I/O & Peripheral Pin 52 (General)
7853I/OMultiplexed I/O & Peripheral Pin 53 (General)
7954I/OMultiplexed I/O & Peripheral Pin 54 (UART)
8055I/OMultiplexed I/O & Peripheral Pin 55 (UART, SPI, I2C)
8156I/OMultiplexed I/O & Peripheral Pin 56 (UART, I2C)
8257I/OMultiplexed I/O & Peripheral Pin 57 (General)
8358I/OMultiplexed I/O & Peripheral Pin 58 (General)
8459I/OMultiplexed I/O & Peripheral Pin 59 (General)
8560I/OMultiplexed I/O & Peripheral Pin 60 (UART, PWM)
8661I/OMultiplexed I/O & Peripheral Pin 61 (UART, PWM)
87-I/OMultiplexed I/O & Peripheral Pin - (General)
88-I/OMultiplexed I/O & Peripheral Pin - (General)
89-I/OMultiplexed I/O & Peripheral Pin - (General)
90-I/OMultiplexed I/O & Peripheral Pin - (General)
91-I/OMultiplexed I/O & Peripheral Pin - (General)
92-I/OMultiplexed I/O & Peripheral Pin - (General)
93-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
94-I/OMultiplexed I/O & Peripheral Pin - (General)
95-I/OMultiplexed I/O & Peripheral Pin - (General)
9662I/OMultiplexed I/O & Peripheral Pin 62 (General)
9763I/OMultiplexed I/O & Peripheral Pin 63 (General)
9864I/OMultiplexed I/O & Peripheral Pin 64 (UART)
9965I/OMultiplexed I/O & Peripheral Pin 65 (UART, I2C, RTC/CLK)
10066I/OMultiplexed I/O & Peripheral Pin 66 (UART, I2C, RTC/CLK)
10167I/OMultiplexed I/O & Peripheral Pin 67 (SPI, I2C, PWM)
10268I/OMultiplexed I/O & Peripheral Pin 68 (UART, PWM)
10369I/OMultiplexed I/O & Peripheral Pin 69 (UART, SPI, PWM)
10470I/OMultiplexed I/O & Peripheral Pin 70 (UART, SPI)
10571I/OMultiplexed I/O & Peripheral Pin 71 (SWD/JTAG)
10672I/OMultiplexed I/O & Peripheral Pin 72 (General)
10773I/OMultiplexed I/O & Peripheral Pin 73 (General)
10875I/OMultiplexed I/O & Peripheral Pin 75 (General)
10977I/OMultiplexed I/O & Peripheral Pin 77 (SWD/JTAG)
11078I/OMultiplexed I/O & Peripheral Pin 78 (UART, SPI, SWD/JTAG)
11179I/OMultiplexed I/O & Peripheral Pin 79 (UART, SPI)
11280I/OMultiplexed I/O & Peripheral Pin 80 (UART, SPI)
11381I/OMultiplexed I/O & Peripheral Pin 81 (UART, SPI)
11482I/OMultiplexed I/O & Peripheral Pin 82 (UART)
11583I/OMultiplexed I/O & Peripheral Pin 83 (General)
11684I/OMultiplexed I/O & Peripheral Pin 84 (UART)
11785I/OMultiplexed I/O & Peripheral Pin 85 (UART, SPI)
11886I/OMultiplexed I/O & Peripheral Pin 86 (UART)
11987I/OMultiplexed I/O & Peripheral Pin 87 (UART)
120-I/OMultiplexed I/O & Peripheral Pin - (General)
12188I/OMultiplexed I/O & Peripheral Pin 88 (General)
122-I/OMultiplexed I/O & Peripheral Pin - (SPI)
123-I/OMultiplexed I/O & Peripheral Pin - (UART)
124-I/OMultiplexed I/O & Peripheral Pin - (SPI)
125-I/OMultiplexed I/O & Peripheral Pin - (SPI)
126-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
127-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
128-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
129-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
130-I/OMultiplexed I/O & Peripheral Pin - (General)
131-I/OMultiplexed I/O & Peripheral Pin - (General)
132-I/OMultiplexed I/O & Peripheral Pin - (UART, SPI)
13389I/OMultiplexed I/O & Peripheral Pin 89 (UART, SPI, SWD/JTAG)
13490I/OMultiplexed I/O & Peripheral Pin 90 (UART, SPI, SWD/JTAG)
13591I/OMultiplexed I/O & Peripheral Pin 91 (UART, SPI, I2C)
13692I/OMultiplexed I/O & Peripheral Pin 92 (UART, I2C)
13793I/OMultiplexed I/O & Peripheral Pin 93 (I2C)
13894I/OMultiplexed I/O & Peripheral Pin 94 (General)
13995I/OMultiplexed I/O & Peripheral Pin 95 (UART, I2C)
14096I/OMultiplexed I/O & Peripheral Pin 96 (UART, I2C)
14197I/OMultiplexed I/O & Peripheral Pin 97 (UART)
142-I/OMultiplexed I/O & Peripheral Pin - (General)
143-I/OMultiplexed I/O & Peripheral Pin - (General)
144100I/OMultiplexed I/O & Peripheral Pin 100 (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 + 16 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: STM32H7A3ZIT6 (ST · LQFP-144(20x20))
Scroll, search text (Ctrl+F), or expand directly inside the embedded PDF reader below
1. Realistic 3D PackageREPRESENTATIVE
STM32H7A3ZIT6 (LQFP-144(20x20)) - 1. Realistic 3D Package
Detailed solid 3D bodyExpand ›
2. Standard Pinout (Top View)CLEANROOM PINOUT
STM32H7A3ZIT6 (LQFP-144(20x20)) - 2. Standard Pinout (Top View)
True package pinout (144 pins)Expand ›
3. Original Datasheet PinoutPDF PINOUT
STM32H7A3ZIT6 (LQFP-144(20x20)) - 3. Original Datasheet Pinout
Uncropped datasheet pin diagramExpand ›
4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS
STM32H7A3ZIT6 (LQFP-144(20x20)) - 4. Package Dimensions (D×E×A)
LQFP-144(20x20) · 19.90×19.90mm · Pitch 0.50mmExpand ›
5. Recommended Land PatternLAND PATTERN
STM32H7A3ZIT6 (LQFP-144(20x20)) - 5. Recommended Land Pattern
IPC-7351B Footprint (144 Pads)Expand ›
6. Application SchematicSCHEMATIC
STM32H7A3ZIT6 (LQFP-144(20x20)) - 6. Application Schematic
Typical Application SchematicExpand ›
Original Datasheet Pinouts & Technical Drawings (16 figures · Page 1/2)
Showing 1–12 of 16 uncropped original figures for STM32H7A3IIT / STM32H7A3IIK / STM32H7A3ZIT
P1 · p01_fig01EXACT PACKAGE
STM32H7A3ZIT6 (LQFP-144(20x20)) — 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
P40 · p40_fig01EXACT PACKAGE
STM32H7A3ZIT6 (LQFP-144(20x20)) — Figure 7. LQFP144 (STM32H7A3xI/G with SMPS) pinout
Figure 7. LQFP144 (STM32H7A3xI/G with SMPS) pinout
P41 · p41_fig01EXACT PACKAGE
STM32H7A3ZIT6 (LQFP-144(20x20)) — Figure 8. LQFP144 (STM32H7A3xI/G without SMPS) pinout
Figure 8. LQFP144 (STM32H7A3xI/G without SMPS) pinout
P201 · p201_fig01EXACT PACKAGE
STM32H7A3ZIT6 (LQFP-144(20x20)) — A1 0.050 - 0.150 0.0020 - 0.0059
A1 0.050 - 0.150 0.0020 - 0.0059
P40 · p40_fig01P40
STM32H7A3ZIT6 (LQFP-144(20x20)) — Datasheet Page 40 (p40_fig01)
Datasheet Page 40 (p40_fig01)
P50 · p50_fig011957×901px
STM32H7A3ZIT6 (LQFP-144(20x20)) — DFSDM1_DATIN3,
DFSDM1_DATIN3,
P82 · p82_fig011501×2357px
STM32H7A3ZIT6 (LQFP-144(20x20)) — Figure 21. Power supply scheme
Figure 21. Power supply scheme
P82 · p82_fig01P82
STM32H7A3ZIT6 (LQFP-144(20x20)) — Datasheet Page 82 (p82_fig01)
Datasheet Page 82 (p82_fig01)
P154 · p154_fig011317×520px
STM32H7A3ZIT6 (LQFP-144(20x20)) — Figure 56. Typical connection diagram using the ADC
Figure 56. Typical connection diagram using the ADC
P154 · p154_fig021133×781px
STM32H7A3ZIT6 (LQFP-144(20x20)) — 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
STM32H7A3ZIT6 (LQFP-144(20x20)) — 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
P200 · p200_fig011149×1292px
STM32H7A3ZIT6 (LQFP-144(20x20)) — Figure 94. LQFP - 144 pins, 20 x 20 mm low-profile quad flat package outline SEATING PLANE
Figure 94. LQFP - 144 pins, 20 x 20 mm low-profile quad flat package outline SEATING PLANE
Page 1 / 2 (16 extracted figures)

Technical Specifications & Part Details (STM32H7A3ZIT6)

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)
Embedded Microcontroller Unit (MCU)
Detailed Overview:STM32H7A3ZIT6 (LQFP-144(20x20)) is a 144-pin embedded microcontroller unit (mcu) featuring a 19.90 × 19.90 × 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
104 5V-tolerant (FT) pins detected
Package Envelope (D × E × A)D × E × A
19.90 × 19.90 × 1.60 mm (A1=0.10 mm)
Package family: LQFP (LQFP-144(20x20))
Pin Count & Lead PitchN / e
144 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 Symbol144 auto-grouped pins
OK
IPC-7351B Land Pattern144 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-144(20x20))

Extracted from Datasheet & IPC-7351B Normalized
mm
Package Body (D × E)Nominal
19.90 × 19.90 mm
Height (A) & Pitch (e)IPC-7351B
A=1.60mm · e=0.50mm
Pad Size (W × L)Level B
0.35 × 1.35 mm
Pins / Total PadsTopology
144P / 144Pad (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-144(20x20)
Size power & signal trace widths for rated load current following IPC-2221 clearance rules.

Technical Frequently Asked Questions (FAQ) — STM32H7A3ZIT6 (LQFP-144(20x20))

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 STM32H7A3ZIT6 (LQFP-144(20x20))?

Manufactured by ST, the STM32H7A3ZIT6 is housed in a LQFP-144(20x20) package with 144 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 (5: Multiplexed I/O & Peripheral Pin 5 (General)).

What are the IPC-7351B PCB Footprint dimensions for STM32H7A3ZIT6?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), STM32H7A3ZIT6 (LQFP-144(20x20)) has a nominal body envelope of 19.90 × 19.90 mm, pitch e = 0.50 mm, and 144 copper pads.

Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for STM32H7A3ZIT6?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for STM32H7A3ZIT6 (ST, LQFP-144(20x20)) 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 (144 pins) & STM32H7A3IIT / STM32H7A3IIK / STM32H7A3ZIT 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.
65Digital_IOSignal terminal 5 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 5. Supported peripheral buses: General.
76Digital_IOSignal terminal 6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 6. Supported peripheral buses: RTC/CLK.
87Digital_IOSignal terminal 7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 7. Supported peripheral buses: RTC/CLK.
98Digital_IOSignal terminal 8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 8. Supported peripheral buses: RTC/CLK.
10-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SDAOCTOSPIM. Supported peripheral buses: I2C.
11-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SCLOCTOSPIM. Supported peripheral buses: I2C.
12-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: I2C2_SMBAOCTOSPIM. Supported peripheral buses: I2C.
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 (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
15-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
16-Digital_IOSignal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
17-Digital_IOSignal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
18-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
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: SPI.
21-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: UART.
22-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
2313Digital_IOSignal terminal 13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 13. Supported peripheral buses: RTC/CLK.
2414Digital_IOSignal terminal 14 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 14. Supported peripheral buses: RTC/CLK.
2515Digital_IOSignal terminal 15 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 15. Supported peripheral buses: General.
2616Digital_IOSignal terminal 16 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 16. Supported peripheral buses: ADC.
2717Digital_IOSignal terminal 17 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MOSI. Supported peripheral buses: SPI, ADC.
28PC2_CDigital_IOSignal terminal PC2_C (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC2_C. Supported peripheral buses: General.
29PC3_CDigital_IOSignal terminal PC3_C (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: PC3_C. Supported peripheral buses: General.
3020Digital_IOSignal terminal 20 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 20. Supported peripheral buses: General.
3122Digital_IOSignal terminal 22 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 22. Supported peripheral buses: General.
3223Digital_IOSignal terminal 23 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 23. Supported peripheral buses: General.
3324Digital_IOSignal terminal 24 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 24. Supported peripheral buses: General.
3425Digital_IOSignal terminal 25 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI6_WSUSART2. Supported peripheral buses: UART, SPI, ADC.
3526Digital_IOSignal terminal 26 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 26. Supported peripheral buses: UART, ADC.
3627Digital_IOSignal terminal 27 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 27. Supported peripheral buses: UART, SPI, ADC, PWM.
3728Digital_IOSignal terminal 28 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 28. Supported peripheral buses: UART, ADC.
3829Digital_IOSignal terminal 29 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 29. Supported peripheral buses: General.
3930Digital_IOSignal terminal 30 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: 30. Supported peripheral buses: General.
4031Digital_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.
4132Digital_IOSignal terminal 32 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: SPI1_CKSPI6SCK. Supported peripheral buses: SPI, ADC, DAC.
4233Digital_IOSignal terminal 33 (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: SPI1_SDIOCTOSPIM, SPI6_ITIM13. Supported peripheral buses: SPI, ADC.
4334Digital_IOSignal terminal 34 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 34. Supported peripheral buses: SPI, ADC, PWM.
4435Digital_IOSignal terminal 35 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 35. Supported peripheral buses: ADC.
4536Digital_IOSignal terminal 36 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 36. Supported peripheral buses: ADC.
4637Digital_IOSignal terminal 37 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 37. Supported peripheral buses: UART, SPI, ADC, PWM.
4738Digital_IOSignal terminal 38 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 38. Supported peripheral buses: ADC, PWM.
4839Digital_IOSignal terminal 39 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_SDOOCTOSPIM. Supported peripheral buses: SPI, RTC/CLK.
49-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI5_MOSIOCTOSPIM. Supported peripheral buses: SPI, ADC.
50-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: ADC.
51-Digital_IOSignal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
52-Digital_IOSignal terminal - (I/O, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: -. Supported peripheral buses: General.
53-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: ADC.
54-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: ADC.
55-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: I2C.
56-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: UART.
57-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: UART.
5840Digital_IOSignal terminal 40 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 40. Supported peripheral buses: General.
5941Digital_IOSignal terminal 41 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: 41. Supported peripheral buses: PWM.
60-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: UART, PWM.
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: UART, PWM.
64-Digital_IOSignal terminal - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: -. Supported peripheral buses: SPI, PWM.
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