SC92F74A3M28U

SOC Shenzhen SinOne Microelectronics · Microcontrollers (MCU/MPU/SOC) · SOP-28L

SC92F74A3M28U from SOC Shenzhen SinOne Microelectronics, in a SOP-28L. 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	VDD	power_in	Power supply pin; the device operates from 2.4V to 5.5V, with 2.9V to 5.5V required when the system clock exceeds 12MHz.
2	P1.0	bidirectional	General-purpose bidirectional I/O P1.0 with independently settable pull-up; all I/O pins have 70mA sink drive capability.
3	VSS	power_in	Ground reference pin.
4	P5.1/OSCI	bidirectional	GPIO P5.1, or external high-frequency crystal oscillator input OSCI (2 to 16MHz) when the crystal is enabled by Code Option ENXTL=1.
5	P5.0/OSCO	bidirectional	GPIO P5.0, or external high-frequency crystal oscillator output OSCO when the crystal is enabled by Code Option ENXTL=1.
6	P1.1/INT01/RST	bidirectional	GPIO P1.1, external interrupt 0 input 1, or external active reset pin RST when selected by Code Option DISRST=0.
7	P1.2/INT02/T0/RX0/tCK	bidirectional	GPIO P1.2, external interrupt input INT02, Timer0 external counter input T0, UART0 receive RX0, or 2-wire programming/emulation clock tCK when JTAG mode is enabled (DISJTG=0).
8	P1.3/INT03/T1/TX0/tDIO	bidirectional	GPIO P1.3, external interrupt input INT03, Timer1 external counter input T1, UART0 transmit TX0, or programming/emulation data tDIO when JTAG mode is enabled (DISJTG=0).
9	P1.4/INT10/AIN9	bidirectional	GPIO P1.4, external interrupt input INT10, or ADC input channel AIN9.
10	P1.5/INT11/AIN8	bidirectional	GPIO P1.5, external interrupt input INT11, or ADC input channel AIN8.
11	P1.6/INT12/AIN7	bidirectional	GPIO P1.6, external interrupt input INT12, or ADC input channel AIN7.
12	P1.7/INT13/AIN6	bidirectional	GPIO P1.7, external interrupt input INT13, or ADC input channel AIN6.
13	P2.7/PWM5/AIN5	bidirectional	GPIO P2.7, PWM5 output, or ADC input channel AIN5.
14	P2.6/PWM4/AIN4	bidirectional	GPIO P2.6, PWM4 output, or ADC input channel AIN4.
15	P2.5/PWM3/AIN3	bidirectional	GPIO P2.5, PWM3 output, or ADC input channel AIN3.
16	P2.4/AIN2	bidirectional	GPIO P2.4, or ADC input channel AIN2.
17	P2.3/AIN1	bidirectional	GPIO P2.3, or ADC input channel AIN1.
18	P2.2/AIN0	bidirectional	GPIO P2.2, or ADC input channel AIN0.
19	P2.1/INT25/MISO/RX1	bidirectional	GPIO P2.1, external interrupt input INT25, SPI master-in/slave-out MISO, or UART1 receive RX1.
20	P2.0/INT24/MOSI/TX1/SDA	bidirectional	GPIO P2.0, external interrupt input INT24, SPI master-out/slave-in MOSI, UART1 transmit TX1, or TWI data SDA.
21	P0.7/INT23/T2	bidirectional	GPIO P0.7, external interrupt input INT23, or Timer2 external counter input T2.
22	P0.6/INT22/T2EX	bidirectional	GPIO P0.6, external interrupt input INT22, or Timer2 external capture/reload input T2EX.
23	P0.5/INT21/SCK	bidirectional	GPIO P0.5, external interrupt input INT21, or SPI/TWI serial clock SCK.
24	P0.4/INT20/COM4	bidirectional	GPIO P0.4, external interrupt input INT20, or software LCD common output COM4 (outputs 1/2 VDD when selected).
25	P0.3/COM3	bidirectional	GPIO P0.3, or software LCD common output COM3 (outputs 1/2 VDD when selected).
26	P0.2/PWM2/COM2	bidirectional	GPIO P0.2, PWM2 output, or software LCD common output COM2 (outputs 1/2 VDD when selected).
27	P0.1/PWM1/COM1	bidirectional	GPIO P0.1, PWM1 output, or software LCD common output COM1 (outputs 1/2 VDD when selected).
28	P0.0/PWM0/COM0	bidirectional	GPIO P0.0, PWM0 output, or software LCD common output COM0 (outputs 1/2 VDD when selected).

Key specifications

Parameter	Value
Manufacturer	SOC Shenzhen SinOne Microelectronics
Package	SOP-28L
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
直流供电电压 DC supply voltage	VDD/VSS	-0.3		5.5	V		82
任一管脚输入/输出电压 Voltage on any pin	Voltage ON any Pin	-0.3			V		82
工作环境温度 Operating ambient temperature	TA	-40		85	℃		82
储存温度 Storage temperature	TSTG	-55		125	℃		82
工作电压 Operating voltage	VDD	2.9		5.5	V	系统时钟频率 >12MHz	82
工作电压 Operating voltage	VDD	2.4		5.5	V	系统时钟频率 ≤12MHz	82
工作环境温度 Operating ambient temperature	TA	-40		85	℃		82
待机电流 Power Down mode standby current	Ipd1		0.7	1	μA	VDD=5V, TA=+25℃; Power Down 模式	82
Base Timer 工作电流 Base Timer operating current	IBTM		6	7.8	μA	VDD=5V, TA=+25℃; BTMFS[3:0]=1000, 每 4.0 秒产生一个中断	82
WDT 电流 WDT current	IWDT		4.5	5.4	μA	VDD=5V, TA=+25℃; WDTCKS[2:0]=000, WDT 溢出时间 500ms	82
输入低电压 Input low voltage	VIL1	-0.3			V	VDD=5V, TA=+25℃	82
输入低电压 Input low voltage (Schmitt, RST/tCK/SCK)	VIL2	-0.2			V	VDD=5V, TA=+25℃; 施密特触发输入: RST/tCK/SCK	82
内部基准 2.4V 电压输出 Internal 2.4V reference output	VDD24	2.38	2.4	2.42	V	VDD=5V; TA=-40~85℃	83
待机电流 Power Down mode standby current	Ipd2		0.6	0.9	uA	VDD=3.3V, TA=+25℃; Power Down 模式	83
输入低电压 Input low voltage	VIL3	-0.3			V	VDD=3.3V, TA=+25℃	83
输入低电压 Input low voltage (Schmitt, RST/tCK/SCK)	VIL4	-0.2			V	VDD=3.3V, TA=+25℃; 施密特触发输入: RST/tCK/SCK	83
Power On Reset 时间 Power on reset time	TPOR		12	18	ms		83
Power Down 模式唤醒时间 Power down wake-up time	TPDW		65	130	μs		83
复位脉冲宽度 Reset pulse width	TReset	18			μs	低电平有效	84
RC 振荡稳定性 RC oscillator stability	fHRC	15.84	16	16.16	MHz	VDD=2.9~~5.5V, TA=-10~~85℃	84
ADC 供电电压 ADC supply voltage	VAD	2.4	5	5.5	V	TA=25℃	84
ADC 输入电阻 ADC input resistance	RAIN	1			M	VIN=5V	84
ADC 转换电流 1 ADC conversion current 1	IADC1		0.9	3.2	mA	VDD=5V; ADC 模块打开	84
ADC 转换电流 2 ADC conversion current 2	IADC2		0.7	2.5	mA	VDD=3.3V; ADC 模块打开	84
微分非线性误差 Differential nonlinearity	DNL	-1		1	LSB	VDD=5V, VREF=5V	84
积分非线性误差 Integral nonlinearity	INL	-1		1	LSB		84
偏移量误差 Offset error	EZ	-4		4	LSB		84
总绝对误差 Total absolute error	EAD	-4		4	LSB		84
工作电流 Operating current	Iop1		7.1		mA	VDD=5V, TA=+25℃; fSYS =16MHz	82
工作电流 Operating current	Iop2		5.4		mA	VDD=5V, TA=+25℃; fSYS =8MHz	82
工作电流 Operating current	Iop3		4.6		mA	VDD=5V, TA=+25℃; fSYS =4MHz	82
工作电流 Operating current	Iop4		4		mA	VDD=5V, TA=+25℃; fSYS =1.33MHz	82
待机电流 IDLE mode standby current	IIDL1		7		mA	VDD=5V, TA=+25℃	82
输出低电流 Output low current	IOL1		42		mA	VDD=5V, TA=+25℃; VPin=0.4V	82
输出低电流 Output low current	IOL2		73		mA	VDD=5V, TA=+25℃; VPin=0.8V	82
输出高电流 P1/P5 Output high current	IOH1		17		mA	VDD=5V, TA=+25℃; VPin=4.3V	82
输出高电流 P1/P5 Output high current	IOH2		8		mA	VDD=5V, TA=+25℃; VPin=4.7V	82
输出高电流 P0/P2 Output high current	IOH3		17		mA	VDD=5V, TA=+25℃; VPin=4.3V; Pxyz=0, IOH等级 0	82
输出高电流 P0/P2 Output high current	IOH3		9.7		mA	VDD=5V, TA=+25℃; VPin=4.3V; Pxyz=1, IOH等级 1	82
输出高电流 P0/P2 Output high current	IOH3		4.9		mA	VDD=5V, TA=+25℃; VPin=4.3V; Pxyz=2, IOH等级 2	83
输出高电流 P0/P2 Output high current	IOH3		1.6		mA	VDD=5V, TA=+25℃; VPin=4.3V; Pxyz=3, IOH等级 3	83
输出高电流 P0/P2 Output high current	IOH4		7.9		mA	VDD=5V, TA=+25℃; VPin=4.7V; Pxyz=0, IOH等级 0	83
输出高电流 P0/P2 Output high current	IOH4		4.4		mA	VDD=5V, TA=+25℃; VPin=4.7V; Pxyz=1, IOH等级 1	83
输出高电流 P0/P2 Output high current	IOH4		2.1		mA	VDD=5V, TA=+25℃; VPin=4.7V; Pxyz=2, IOH等级 2	83
输出高电流 P0/P2 Output high current	IOH4		0.7		mA	VDD=5V, TA=+25℃; VPin=4.7V; Pxyz=3, IOH等级 3	83
上拉电阻 Pull-up resistance	RPH1		33		k	VDD=5V, TA=+25℃	83
工作电流 Operating current	Iop5		6.1		mA	VDD=3.3V, TA=+25℃; fSYS =16MHz	83
工作电流 Operating current	Iop6		4.8		mA	VDD=3.3V, TA=+25℃; fSYS =8MHz	83
工作电流 Operating current	Iop7		4.1		mA	VDD=3.3V, TA=+25℃; fSYS =4MHz	83
工作电流 Operating current	Iop8		3.6		mA	VDD=3.3V, TA=+25℃; fSYS =1.33MHz	83
待机电流 IDLE mode standby current	IIDL2		5.1		mA	VDD=3.3V, TA=+25℃	83
输出低电流 Output low current	IOL3		32		mA	VDD=3.3V, TA=+25℃; Vpin=0.4V	83
输出低电流 Output low current	IOL4		52		mA	VDD=3.3V, TA=+25℃; Vpin=0.8V	83
输出高电流 Output high current	IOH5		6		mA	VDD=3.3V, TA=+25℃; Vpin=3.0V	83
上拉电阻 Pull-up resistance	RPH2		56		k	VDD=3.3V, TA=+25℃	83
外接高频振荡器起振时间 External HF oscillator start-up time	Tosc1		9		ms	外接 16MHz 晶振	83
外接高频振荡器起振时间 External HF oscillator start-up time	Tosc2		17		ms	外接 8MHz 晶振	83
ADC 转换时间 1 ADC conversion time 1	TADC1		10		μs	ADC Clock = 2.67MHz; ADC 采样周期 = 6	84
ADC 转换时间 2 ADC conversion time 2	TADC2		20		μs	ADC Clock = 1.33MHz; ADC 采样周期 = 6	84

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part	Material	Colour / plating	Datasheet says	Page
housing	PBT		BTM Base timer BTMIF EBTM IPBTM 004BH 10 9 H/W Auto 能	30

CAD (KiCad official)

Symbol: SC92F74A3M28U
Footprint: Package_SO:SOP-28_8.4x18.16mm_P1.27mm
3D model: SOP-28L (KiCad packages3D, STEP)
3D model files: sc92f74a3m28u-etched.step / sc92f74a3m28u-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sc92f74a3m28u.step / sc92f74a3m28u.glb are the bare package body.

Provenance

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

Datasheet: SOC Shenzhen SinOne Microelectronics datasheet (91 pp, sha256 1ccc527c23044a93, retrieved 2026-10-20, 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF

# SC92F74A3M28U

**SOC Shenzhen SinOne Microelectronics** · Microcontrollers (MCU/MPU/SOC) · SOP-28L

SC92F74A3M28U from SOC Shenzhen SinOne Microelectronics, in a SOP-28L. 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 | VDD | power_in | Power supply pin; the device operates from 2.4V to 5.5V, with 2.9V to 5.5V required when the system clock exceeds 12MHz. |
| 2 | P1.0 | bidirectional | General-purpose bidirectional I/O P1.0 with independently settable pull-up; all I/O pins have 70mA sink drive capability. |
| 3 | VSS | power_in | Ground reference pin. |
| 4 | P5.1/OSCI | bidirectional | GPIO P5.1, or external high-frequency crystal oscillator input OSCI (2 to 16MHz) when the crystal is enabled by Code Option ENXTL=1. |
| 5 | P5.0/OSCO | bidirectional | GPIO P5.0, or external high-frequency crystal oscillator output OSCO when the crystal is enabled by Code Option ENXTL=1. |
| 6 | P1.1/INT01/RST | bidirectional | GPIO P1.1, external interrupt 0 input 1, or external active reset pin RST when selected by Code Option DISRST=0. |
| 7 | P1.2/INT02/T0/RX0/tCK | bidirectional | GPIO P1.2, external interrupt input INT02, Timer0 external counter input T0, UART0 receive RX0, or 2-wire programming/emulation clock tCK when JTAG mode is enabled (DISJTG=0). |
| 8 | P1.3/INT03/T1/TX0/tDIO | bidirectional | GPIO P1.3, external interrupt input INT03, Timer1 external counter input T1, UART0 transmit TX0, or programming/emulation data tDIO when JTAG mode is enabled (DISJTG=0). |
| 9 | P1.4/INT10/AIN9 | bidirectional | GPIO P1.4, external interrupt input INT10, or ADC input channel AIN9. |
| 10 | P1.5/INT11/AIN8 | bidirectional | GPIO P1.5, external interrupt input INT11, or ADC input channel AIN8. |
| 11 | P1.6/INT12/AIN7 | bidirectional | GPIO P1.6, external interrupt input INT12, or ADC input channel AIN7. |
| 12 | P1.7/INT13/AIN6 | bidirectional | GPIO P1.7, external interrupt input INT13, or ADC input channel AIN6. |
| 13 | P2.7/PWM5/AIN5 | bidirectional | GPIO P2.7, PWM5 output, or ADC input channel AIN5. |
| 14 | P2.6/PWM4/AIN4 | bidirectional | GPIO P2.6, PWM4 output, or ADC input channel AIN4. |
| 15 | P2.5/PWM3/AIN3 | bidirectional | GPIO P2.5, PWM3 output, or ADC input channel AIN3. |
| 16 | P2.4/AIN2 | bidirectional | GPIO P2.4, or ADC input channel AIN2. |
| 17 | P2.3/AIN1 | bidirectional | GPIO P2.3, or ADC input channel AIN1. |
| 18 | P2.2/AIN0 | bidirectional | GPIO P2.2, or ADC input channel AIN0. |
| 19 | P2.1/INT25/MISO/RX1 | bidirectional | GPIO P2.1, external interrupt input INT25, SPI master-in/slave-out MISO, or UART1 receive RX1. |
| 20 | P2.0/INT24/MOSI/TX1/SDA | bidirectional | GPIO P2.0, external interrupt input INT24, SPI master-out/slave-in MOSI, UART1 transmit TX1, or TWI data SDA. |
| 21 | P0.7/INT23/T2 | bidirectional | GPIO P0.7, external interrupt input INT23, or Timer2 external counter input T2. |
| 22 | P0.6/INT22/T2EX | bidirectional | GPIO P0.6, external interrupt input INT22, or Timer2 external capture/reload input T2EX. |
| 23 | P0.5/INT21/SCK | bidirectional | GPIO P0.5, external interrupt input INT21, or SPI/TWI serial clock SCK. |
| 24 | P0.4/INT20/COM4 | bidirectional | GPIO P0.4, external interrupt input INT20, or software LCD common output COM4 (outputs 1/2 VDD when selected). |
| 25 | P0.3/COM3 | bidirectional | GPIO P0.3, or software LCD common output COM3 (outputs 1/2 VDD when selected). |
| 26 | P0.2/PWM2/COM2 | bidirectional | GPIO P0.2, PWM2 output, or software LCD common output COM2 (outputs 1/2 VDD when selected). |
| 27 | P0.1/PWM1/COM1 | bidirectional | GPIO P0.1, PWM1 output, or software LCD common output COM1 (outputs 1/2 VDD when selected). |
| 28 | P0.0/PWM0/COM0 | bidirectional | GPIO P0.0, PWM0 output, or software LCD common output COM0 (outputs 1/2 VDD when selected). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SOC Shenzhen SinOne Microelectronics |
| Package | SOP-28L |
| 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 |
|---|---|---|---|---|---|---|---|
| 直流供电电压 DC supply voltage | VDD/VSS | -0.3 |  | 5.5 | V |  | 82 |
| 任一管脚输入/输出电压 Voltage on any pin | Voltage ON any Pin | -0.3 |  |  | V |  | 82 |
| 工作环境温度 Operating ambient temperature | TA | -40 |  | 85 | ℃ |  | 82 |
| 储存温度 Storage temperature | TSTG | -55 |  | 125 | ℃ |  | 82 |
| 工作电压 Operating voltage | VDD | 2.9 |  | 5.5 | V | 系统时钟频率 >12MHz | 82 |
| 工作电压 Operating voltage | VDD | 2.4 |  | 5.5 | V | 系统时钟频率 ≤12MHz | 82 |
| 工作环境温度 Operating ambient temperature | TA | -40 |  | 85 | ℃ |  | 82 |
| 待机电流 Power Down mode standby current | Ipd1 |  | 0.7 | 1 | μA | VDD=5V, TA=+25℃; Power Down 模式 | 82 |
| Base Timer 工作电流 Base Timer operating current | IBTM |  | 6 | 7.8 | μA | VDD=5V, TA=+25℃; BTMFS[3:0]=1000, 每 4.0 秒产生一个中断 | 82 |
| WDT 电流 WDT current | IWDT |  | 4.5 | 5.4 | μA | VDD=5V, TA=+25℃; WDTCKS[2:0]=000, WDT 溢出时间 500ms | 82 |
| 输入低电压 Input low voltage | VIL1 | -0.3 |  |  | V | VDD=5V, TA=+25℃ | 82 |
| 输入低电压 Input low voltage (Schmitt, RST/tCK/SCK) | VIL2 | -0.2 |  |  | V | VDD=5V, TA=+25℃; 施密特触发输入: RST/tCK/SCK | 82 |
| 内部基准 2.4V 电压输出 Internal 2.4V reference output | VDD24 | 2.38 | 2.4 | 2.42 | V | VDD=5V; TA=-40~85℃ | 83 |
| 待机电流 Power Down mode standby current | Ipd2 |  | 0.6 | 0.9 | uA | VDD=3.3V, TA=+25℃; Power Down 模式 | 83 |
| 输入低电压 Input low voltage | VIL3 | -0.3 |  |  | V | VDD=3.3V, TA=+25℃ | 83 |
| 输入低电压 Input low voltage (Schmitt, RST/tCK/SCK) | VIL4 | -0.2 |  |  | V | VDD=3.3V, TA=+25℃; 施密特触发输入: RST/tCK/SCK | 83 |
| Power On Reset 时间 Power on reset time | TPOR |  | 12 | 18 | ms |  | 83 |
| Power Down 模式唤醒时间 Power down wake-up time | TPDW |  | 65 | 130 | μs |  | 83 |
| 复位脉冲宽度 Reset pulse width | TReset | 18 |  |  | μs | 低电平有效 | 84 |
| RC 振荡稳定性 RC oscillator stability | fHRC | 15.84 | 16 | 16.16 | MHz | VDD=2.9~5.5V, TA=-10~85℃ | 84 |
| ADC 供电电压 ADC supply voltage | VAD | 2.4 | 5 | 5.5 | V | TA=25℃ | 84 |
| ADC 输入电阻 ADC input resistance | RAIN | 1 |  |  | M | VIN=5V | 84 |
| ADC 转换电流 1 ADC conversion current 1 | IADC1 |  | 0.9 | 3.2 | mA | VDD=5V; ADC 模块打开 | 84 |
| ADC 转换电流 2 ADC conversion current 2 | IADC2 |  | 0.7 | 2.5 | mA | VDD=3.3V; ADC 模块打开 | 84 |
| 微分非线性误差 Differential nonlinearity | DNL | -1 |  | 1 | LSB | VDD=5V, VREF=5V | 84 |
| 积分非线性误差 Integral nonlinearity | INL | -1 |  | 1 | LSB |  | 84 |
| 偏移量误差 Offset error | EZ | -4 |  | 4 | LSB |  | 84 |
| 总绝对误差 Total absolute error | EAD | -4 |  | 4 | LSB |  | 84 |
| 工作电流 Operating current | Iop1 |  | 7.1 |  | mA | VDD=5V, TA=+25℃; fSYS =16MHz | 82 |
| 工作电流 Operating current | Iop2 |  | 5.4 |  | mA | VDD=5V, TA=+25℃; fSYS =8MHz | 82 |
| 工作电流 Operating current | Iop3 |  | 4.6 |  | mA | VDD=5V, TA=+25℃; fSYS =4MHz | 82 |
| 工作电流 Operating current | Iop4 |  | 4 |  | mA | VDD=5V, TA=+25℃; fSYS =1.33MHz | 82 |
| 待机电流 IDLE mode standby current | IIDL1 |  | 7 |  | mA | VDD=5V, TA=+25℃ | 82 |
| 输出低电流 Output low current | IOL1 |  | 42 |  | mA | VDD=5V, TA=+25℃; VPin=0.4V | 82 |
| 输出低电流 Output low current | IOL2 |  | 73 |  | mA | VDD=5V, TA=+25℃; VPin=0.8V | 82 |
| 输出高电流 P1/P5 Output high current | IOH1 |  | 17 |  | mA | VDD=5V, TA=+25℃; VPin=4.3V | 82 |
| 输出高电流 P1/P5 Output high current | IOH2 |  | 8 |  | mA | VDD=5V, TA=+25℃; VPin=4.7V | 82 |
| 输出高电流 P0/P2 Output high current | IOH3 |  | 17 |  | mA | VDD=5V, TA=+25℃; VPin=4.3V; Pxyz=0, IOH等级 0 | 82 |
| 输出高电流 P0/P2 Output high current | IOH3 |  | 9.7 |  | mA | VDD=5V, TA=+25℃; VPin=4.3V; Pxyz=1, IOH等级 1 | 82 |
| 输出高电流 P0/P2 Output high current | IOH3 |  | 4.9 |  | mA | VDD=5V, TA=+25℃; VPin=4.3V; Pxyz=2, IOH等级 2 | 83 |
| 输出高电流 P0/P2 Output high current | IOH3 |  | 1.6 |  | mA | VDD=5V, TA=+25℃; VPin=4.3V; Pxyz=3, IOH等级 3 | 83 |
| 输出高电流 P0/P2 Output high current | IOH4 |  | 7.9 |  | mA | VDD=5V, TA=+25℃; VPin=4.7V; Pxyz=0, IOH等级 0 | 83 |
| 输出高电流 P0/P2 Output high current | IOH4 |  | 4.4 |  | mA | VDD=5V, TA=+25℃; VPin=4.7V; Pxyz=1, IOH等级 1 | 83 |
| 输出高电流 P0/P2 Output high current | IOH4 |  | 2.1 |  | mA | VDD=5V, TA=+25℃; VPin=4.7V; Pxyz=2, IOH等级 2 | 83 |
| 输出高电流 P0/P2 Output high current | IOH4 |  | 0.7 |  | mA | VDD=5V, TA=+25℃; VPin=4.7V; Pxyz=3, IOH等级 3 | 83 |
| 上拉电阻 Pull-up resistance | RPH1 |  | 33 |  | k | VDD=5V, TA=+25℃ | 83 |
| 工作电流 Operating current | Iop5 |  | 6.1 |  | mA | VDD=3.3V, TA=+25℃; fSYS =16MHz | 83 |
| 工作电流 Operating current | Iop6 |  | 4.8 |  | mA | VDD=3.3V, TA=+25℃; fSYS =8MHz | 83 |
| 工作电流 Operating current | Iop7 |  | 4.1 |  | mA | VDD=3.3V, TA=+25℃; fSYS =4MHz | 83 |
| 工作电流 Operating current | Iop8 |  | 3.6 |  | mA | VDD=3.3V, TA=+25℃; fSYS =1.33MHz | 83 |
| 待机电流 IDLE mode standby current | IIDL2 |  | 5.1 |  | mA | VDD=3.3V, TA=+25℃ | 83 |
| 输出低电流 Output low current | IOL3 |  | 32 |  | mA | VDD=3.3V, TA=+25℃; Vpin=0.4V | 83 |
| 输出低电流 Output low current | IOL4 |  | 52 |  | mA | VDD=3.3V, TA=+25℃; Vpin=0.8V | 83 |
| 输出高电流 Output high current | IOH5 |  | 6 |  | mA | VDD=3.3V, TA=+25℃; Vpin=3.0V | 83 |
| 上拉电阻 Pull-up resistance | RPH2 |  | 56 |  | k | VDD=3.3V, TA=+25℃ | 83 |
| 外接高频振荡器起振时间 External HF oscillator start-up time | Tosc1 |  | 9 |  | ms | 外接 16MHz 晶振 | 83 |
| 外接高频振荡器起振时间 External HF oscillator start-up time | Tosc2 |  | 17 |  | ms | 外接 8MHz 晶振 | 83 |
| ADC 转换时间 1 ADC conversion time 1 | TADC1 |  | 10 |  | μs | ADC Clock = 2.67MHz; ADC 采样周期 = 6 | 84 |
| ADC 转换时间 2 ADC conversion time 2 | TADC2 |  | 20 |  | μs | ADC Clock = 1.33MHz; ADC 采样周期 = 6 | 84 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | PBT |  | BTM Base timer BTMIF EBTM IPBTM 004BH 10 9 H/W Auto 能 | 30 |

## CAD (KiCad official)

- Symbol: `SC92F74A3M28U`
- Footprint: `Package_SO:SOP-28_8.4x18.16mm_P1.27mm`
- 3D model: SOP-28L (KiCad packages3D, STEP)
- 3D model files: `sc92f74a3m28u-etched.step` / `sc92f74a3m28u-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sc92f74a3m28u.step` / `sc92f74a3m28u.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SOC Shenzhen SinOne Microelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603125095858511872) (91 pp, sha256 `1ccc527c23044a93`, retrieved 2026-10-20, 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`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/sc92f74a3m28u-datasheet.pdf)