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HC89F303C-SOP28-T
Public Made by Adomby adom
holychip(芯圣电子) Microcontrollers (MCU/MPU/SOC), SOP-28. Pinout cross-checked by two models against the datasheet, 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
markdownHC89F303C-SOP28-T
holychip(芯圣电子) · Microcontrollers (MCU/MPU/SOC) · SOP-28
HC89F303C-SOP28-T from holychip(芯圣电子), in a SOP-28. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | P1.7/TK15 | bidirectional | General-purpose I/O port P1.7 that can also serve as capacitive touch channel 15; port mode (input, Schmitt, pull-up/pull-down, open-drain, output) and drive strength are software-configurable. |
| 2 | P1.6/TK14 | bidirectional | General-purpose I/O port P1.6 that can also serve as capacitive touch channel 14; port mode and drive strength are software-configurable. |
| 3 | P1.5/TK13 | bidirectional | General-purpose I/O port P1.5 that can also serve as capacitive touch channel 13; port mode and drive strength are software-configurable. |
| 4 | P1.4/TK12 | bidirectional | General-purpose I/O port P1.4 that can also serve as capacitive touch channel 12; port mode and drive strength are software-configurable. |
| 5 | P1.3/TK11 | bidirectional | General-purpose I/O port P1.3 that can also serve as capacitive touch channel 11; port mode and drive strength are software-configurable. |
| 6 | P1.2/TK10 | bidirectional | General-purpose I/O port P1.2 that can also serve as capacitive touch channel 10; port mode and drive strength are software-configurable. |
| 7 | P1.1/TK9 | bidirectional | General-purpose I/O port P1.1 that can also serve as capacitive touch channel 9; port mode and drive strength are software-configurable. |
| 8 | P1.0/TK8 | bidirectional | General-purpose I/O port P1.0 that can also serve as capacitive touch channel 8; port mode and drive strength are software-configurable. |
| 9 | P0.7/AN7/TK7/Vref | bidirectional | General-purpose I/O port P0.7 that can also serve as ADC input AN7, touch channel 7, or the ADC reference voltage input/output Vref; when VREFS=1 it is used only as the external ADC reference input and must be set to analog input. |
| 10 | P0.6/AN6/TK6 | bidirectional | General-purpose I/O port P0.6 that can also serve as ADC input AN6 or touch channel 6. |
| 11 | P0.5/AN5/TK5 | bidirectional | General-purpose I/O port P0.5 that can also serve as ADC input AN5 or touch channel 5. |
| 12 | P0.4/AN4/TK4 | bidirectional | General-purpose I/O port P0.4 that can also serve as ADC input AN4 or touch channel 4. |
| 13 | GND | power_in | Power ground (GND) reference for the device. |
| 14 | VDD | power_in | Power supply input; the datasheet specifies a VDD operating range of 2.0 V to 5.5 V and recommends a capacitor of at least 0.1 µF between VDD and GND. |
| 15 | P0.3/AN3/TK3 | bidirectional | General-purpose I/O port P0.3 that can also serve as ADC input AN3 or touch channel 3. |
| 16 | P0.2/AN2/TK2 | bidirectional | General-purpose I/O port P0.2 that can also serve as ADC input AN2 or touch channel 2. |
| 17 | P0.1/AN1/TK1/INT1 | bidirectional | General-purpose I/O port P0.1 that can also serve as ADC input AN1, touch channel 1, or external interrupt 1 input INT1. |
| 18 | P0.0/AN0/TK0/INT0/FLT0 | bidirectional | General-purpose I/O port P0.0 that can also serve as ADC input AN0, touch channel 0, external interrupt 0 input INT0, or PWM0 fault-detection input FLT0. |
| 19 | P2.7/AN15/TK20 | bidirectional | General-purpose I/O port P2.7 that can also serve as ADC input AN15 or touch channel 20. |
| 20 | P2.6/AN14/TK19 | bidirectional | General-purpose I/O port P2.6 that can also serve as ADC input AN14 or touch channel 19. |
| 21 | P2.5/AN13/TK18 | bidirectional | General-purpose I/O port P2.5 that can also serve as ADC input AN13 or touch channel 18. |
| 22 | P2.4/AN12/RST | bidirectional | General-purpose I/O port P2.4 that can also serve as ADC input AN12; when enabled as the external reset pin (option ERST_ENB=0, default) it is an input that resets the MCU when pulled low, and it then cannot be used as ordinary I/O. |
| 23 | P3.5/INT17/XIN/FC | bidirectional | General-purpose I/O port P3.5 (high-current capable, 70 mA drive per the datasheet) that can also serve as external interrupt 17 input INT17, 32.768 kHz crystal input XIN, or the CTK VDD filter pin FC. |
| 24 | P3.4/INT16/XOUT | bidirectional | General-purpose I/O port P3.4 (high-current capable, 70 mA drive per the datasheet) that can also serve as external interrupt 16 input INT16 or 32.768 kHz crystal output XOUT. |
| 25 | P2.3/AN11/TK17 | bidirectional | General-purpose I/O port P2.3 that can also serve as ADC input AN11 or touch channel 17. |
| 26 | P2.2/AN10/SCK | bidirectional | General-purpose I/O port P2.2 that can also serve as ADC input AN10 or the two-wire mode clock input SCK. |
| 27 | P2.1/AN9/TK16 | bidirectional | General-purpose I/O port P2.1 that can also serve as ADC input AN9 or touch channel 16. |
| 28 | P2.0/AN8/SDA | bidirectional | General-purpose I/O port P2.0 that can also serve as ADC input AN8 or the two-wire mode data line SDA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | holychip(芯圣电子) |
| Package | SOP-28 |
| Category | Embedded Processors & Controllers |
| Pins | 28 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| DC supply voltage | VDD | -0.3 | 6 | V | 131 | ||
| Input/output voltage | VI/VO | -0.3 | V | Min printed as GND-0.3 (GND=0V); max printed as VDD+0.3 (supply-relative, no fixed number) | 131 | ||
| Operating ambient temperature | TOTG | -40 | 105 | °C | 131 | ||
| Storage temperature | TSTG | -55 | 125 | °C | 131 | ||
| Maximum current through VDD | 100 | mA | at 5.0 V, 25 °C (note 1) | 131 | |||
| Maximum current through GND | 150 | mA | at 5.0 V, 25 °C (note 2) | 131 | |||
| Operating voltage (ADC and CTK off) | VDD1 | 2 | 5 | 5.5 | V | FCPU=16MHz or 44KHz, ADC and CTK modules off | 131 |
| Operating voltage (ADC enabled) | VDD2 | 2.7 | 5 | 5.5 | V | FCPU=16MHz or 44KHz, ADC enabled (VREF=2V), CTK off | 131 |
| Operating voltage (CTK enabled) | VDD3 | 2.5 | 5 | 5.5 | V | FCPU=16MHz or 44KHz, ADC off, CTK enabled | 131 |
| ESD HBM | 4000 | V | CLASS 3A (HBM) | 137 | |||
| ESD MM | 200 | V | CLASS 2 (MM) | 137 | |||
| Latch-up | 200 | mA | CLASS I | 137 |
CAD (KiCad official)
- Symbol:
HC89F303C-SOP28-T - Footprint:
Package_SO:SOP-28_8.4x18.16mm_P1.27mm - 3D model: SOP-28 (KiCad packages3D, STEP)
- 3D model files:
hc89f303c-sop28-t-etched.step/hc89f303c-sop28-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hc89f303c-sop28-t.step/hc89f303c-sop28-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: holychip(芯圣电子) datasheet (140 pp, sha256
74fce85dd6e1fd88, retrieved 2026-10-18, 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 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(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).