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HC89F0431A-TSSO20-TM

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Shanghai Holychip Elec Microcontroller Units (MCUs/MPUs/SOCs), TSSOP-20. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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HC89F0431A-TSSO20-TM

Shanghai Holychip Elec · Microcontroller Units (MCUs/MPUs/SOCs) · TSSOP-20

HC89F0431A-TSSO20-TM from Shanghai Holychip Elec, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground (power return)
2 P1.0/XIN/INT0_1/CMP2+ bidirectional GPIO port P1.0; external crystal oscillator input (XIN); external interrupt 0 alternate input (INT0_1); comparator 2 positive input (CMP2+)
3 P1.1/XOUT/INT1_1/CMP3+ bidirectional GPIO port P1.1; external crystal oscillator output (XOUT); external interrupt 1 alternate input (INT1_1); comparator 3 positive input (CMP3+)
4 P2.7/AN15/RST/INT15 bidirectional GPIO port P2.7; ADC input 15 (AN15); external reset input (RST); external interrupt 15 input (INT15)
5 P2.6/AN14/TMS/INT14/PLVD/CMP- bidirectional GPIO port P2.6; ADC input 14 (AN14); JTAG test mode select (TMS); external interrupt 14 input (INT14); port low voltage detection (PLVD); comparator negative input (CMP-)
6 P2.5/AN13/TCK/INT13/CMP1+ bidirectional GPIO port P2.5; ADC input 13 (AN13); JTAG test clock (TCK); external interrupt 13 input (INT13); comparator 1 positive input (CMP1+)
7 P2.4/AN12/TDO/INT12 bidirectional GPIO port P2.4; ADC input 12 (AN12); JTAG test data output (TDO); external interrupt 12 input (INT12)
8 P2.3/AN11/TDI/INT11 bidirectional GPIO port P2.3; ADC input 11 (AN11); JTAG test data input (TDI); external interrupt 11 input (INT11)
9 P2.2/AN10/INT10 bidirectional GPIO port P2.2; ADC input 10 (AN10); external interrupt 10 input (INT10)
10 P2.1/AN9/INT9/SDA bidirectional GPIO port P2.1; ADC input 9 (AN9); external interrupt 9 input (INT9); I2C serial data input/output (SDA)
11 P2.0/AN8/INT8 bidirectional GPIO port P2.0; ADC input 8 (AN8); external interrupt 8 input (INT8)
12 P0.7/AN7/INT7 bidirectional GPIO port P0.7; ADC input 7 (AN7); external interrupt 7 input (INT7)
13 P0.6/AN6/INT6 bidirectional GPIO port P0.6; ADC input 6 (AN6); external interrupt 6 input (INT6)
14 P0.5/AN5/INT5 bidirectional GPIO port P0.5; ADC input 5 (AN5); external interrupt 5 input (INT5)
15 P0.4/AN4/Vref/INT4 bidirectional GPIO port P0.4; ADC input 4 (AN4); ADC external reference voltage input/output (Vref); external interrupt 4 input (INT4)
16 P0.3/AN3/INT3/SCK bidirectional GPIO port P0.3; ADC input 3 (AN3); external interrupt 3 input (INT3); I2C/SPI serial clock input (SCK)
17 P0.2/AN2/INT2/FLT2 bidirectional GPIO port P0.2; ADC input 2 (AN2); external interrupt 2 input (INT2); PWM2 fault detection input (FLT2)
18 P0.1/AN1/INT1/FLT1 bidirectional GPIO port P0.1; ADC input 1 (AN1); external interrupt 1 input (INT1); PWM1 fault detection input (FLT1)
19 P0.0/AN0/INT0/FLT0 bidirectional GPIO port P0.0; ADC input 0 (AN0); external interrupt 0 input (INT0); PWM0 fault detection input (FLT0)
20 VDD power_in Power supply input (2.0 V to 5.5 V)

Key specifications

Parameter Value
Manufacturer Shanghai Holychip Elec
Package TSSOP-20
Category Single Chip Microcomputer/Microcontroller
Pins 20

CAD (KiCad official)

  • Symbol: HC89F0431A-TSSO20-TM
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: hc89f0431a-tsso20-tm-etched.step / hc89f0431a-tsso20-tm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hc89f0431a-tsso20-tm.step / hc89f0431a-tsso20-tm.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Shanghai Holychip Elec datasheet (189 pp, sha256 7f5fde6a3e5b082f, retrieved 2026-09-22, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF