component
HC89F0421A-SOP16-T-M
Public Made by Adomby adom
Shanghai Holychip Elec Microcontroller Units (MCUs/MPUs/SOCs), SOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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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README
markdownHC89F0421A-SOP16-T-M
Shanghai Holychip Elec · Microcontroller Units (MCUs/MPUs/SOCs) · SOP-16
HC89F0421A-SOP16-T-M from Shanghai Holychip Elec, in a SOP-16. 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 | Power ground connection; all GND pins must be connected to system ground, 0V reference. |
| 2 | P1.0 | bidirectional | General purpose I/O port that can also function as external crystal oscillator input (XIN), external interrupt 0 input (INT0_1), or analog input for comparator 2 positive input (CMP2+), selectable via software. |
| 3 | P1.1 | bidirectional | General purpose I/O port that can also function as external crystal oscillator output (XOUT), external interrupt 1 input (INT1_1), or analog input for comparator 3 positive input (CMP3+), selectable via software. |
| 4 | P2.7 | input | External reset input pin (RST) by default; can be reconfigured as general purpose I/O, ADC15 analog input, or external interrupt 15 input via code options. |
| 5 | P2.6 | bidirectional | General purpose I/O port that can also function as ADC14 analog input, external interrupt 14 input, port low voltage detection input (PLVD at 1.2V threshold), or comparator negative input (CMP-), selectable via software. |
| 6 | P2.5 | bidirectional | General purpose I/O port that can also function as I2C serial clock input (SCK), ADC13 analog input, external interrupt 13 input, or comparator 1 positive input (CMP1+), selectable via software. |
| 7 | P2.4 | bidirectional | General purpose I/O port that can also function as I2C serial data input/output (SDA), ADC12 analog input, or external interrupt 12 input, selectable via software. |
| 8 | P2.3 | bidirectional | General purpose I/O port that can also function as ADC11 analog input or external interrupt 11 input, selectable via software. |
| 9 | P0.6 | bidirectional | General purpose I/O port that can also function as ADC6 analog input or external interrupt 6 input, selectable via software. |
| 10 | P0.5 | bidirectional | General purpose I/O port that can also function as ADC5 analog input or external interrupt 5 input, selectable via software. |
| 11 | P0.4 | bidirectional | General purpose I/O port that can also function as ADC4 analog input, external ADC reference voltage input/output (Vref), or external interrupt 4 input, selectable via software. |
| 12 | P0.3 | bidirectional | General purpose I/O port that can also function as ADC3 analog input or external interrupt 3 input, selectable via software. |
| 13 | P0.2 | bidirectional | General purpose I/O port that can also function as ADC2 analog input, external interrupt 2 input, or PWM2 fault detection input (FLT2), selectable via software with programmable debounce filter. |
| 14 | P0.1 | bidirectional | General purpose I/O port that can also function as ADC1 analog input, external interrupt 1 input, or PWM1 fault detection input (FLT1), selectable via software with programmable debounce filter. |
| 15 | P0.0 | bidirectional | General purpose I/O port that can also function as ADC0 analog input, external interrupt 0 input, or PWM0 fault detection input (FLT0), selectable via software with programmable debounce filter. |
| 16 | VDD | power_in | Power supply input, operating voltage range 2.0V to 5.5V; connect to system power through minimum 0.1µF decoupling capacitor to GND per application note. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Holychip Elec |
| Package | SOP-16 |
| Category | Single Chip Microcomputer/Microcontroller |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
HC89F0421A-SOP16-T-M - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOP-16 (KiCad packages3D, STEP)
- 3D model files:
hc89f0421a-sop16-t-m-etched.step/hc89f0421a-sop16-t-m-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hc89f0421a-sop16-t-m.step/hc89f0421a-sop16-t-m.glbare 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 2026-09-17, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).