SOC(Shenzhen SinOne Microelectronics) SC92F7461BM16U

SC92F746XB is an enhanced high-speed 1T 8051-core industrial-grade Flash microcontroller, with an instruction set fully compatible with the traditional 8051 product family. It integrates 16 Kbytes Flash ROM, 1 Kbytes SRAM, 128 bytes EEPROM, up to 26 GPIO, 13 IOs with external interrupt capability, three 16-bit timers, eleven 12-bit high-precision ADC channels, six independent 10-bit PWM channels, an internal 1% high-precision high-frequency 16/8/4/1.33 MHz oscillator and a 4% accuracy low-frequency 128K oscillator, an external crystal oscillator option, one UART, and one SSI multi-function communication port (UART/SPI/IIC selectable). To enhance reliability and simplify customer circuitry, it also integrates high-reliability circuits such as a 4-level selectable voltage LVR and a 2.4V reference voltage for ADC. With excellent EMI immunity, it is well-suited for main control applications across a wide range of use cases, including large and small smart home appliances, smart home systems, IoT, wireless communications, gaming consoles, and other industrial control and consumer application fields.

• Operating voltage: 2.4V~5.5V
• Operating temperature: -40~85℃
• Core: 1T 8051
• Flash ROM: 16 Kbytes Flash ROM (MOVC addressing 0000H~00FFH prohibited), rewritable up to 10,000 times
• IAP: Configurable via code option to 0K, 0.5K, 1K, or 16K
• EEPROM: 128 bytes, no erase required, 100,000 write cycles, data retention over 10 years
• SRAM: Internal 256 bytes + external 768 bytes
• Built-in high-frequency 16MHz oscillator (fHRC): when used as system clock source, fSYS is selectable via programmer to 16/8/4/1.33MHz; frequency error not exceeding ±1% across operating conditions (3.0V~5.5V) and (-20~85℃)
• Built-in high-frequency crystal oscillator circuit, supports external 2~16MHz oscillator
• When used as system clock source, fSYS is selectable via programmer from four divider options: external crystal /1 /2 /4 /12
• IC system clock (fSYS) operating voltage range: >12MHz @2.9~5.5V, ≤12MHz @2.4~5.5V
• Built-in low-frequency 128kHz LRC oscillator: usable as clock source for Base Timer with STOP wake-up capability; usable as WDT clock source; frequency error not exceeding ±4% across operating conditions (4.0V~5.5V) and (-20~85℃)
• Low Voltage Reset (LVR): four selectable reset voltage levels: 4.3V, 3.7V, 2.9V, 2.3V; default value determined by user-programmed Code Option
• 2-wire JTAG programming and emulation interface
• Interrupts (INT): 11 interrupt sources — Timer0, Timer1, Timer2, INT0~2, ADC, PWM, UART, SSI, Base Timer; 3 external interrupt vectors; 13 interrupt pins total; all configurable for rising edge, falling edge, or both-edge triggering; two-level interrupt priority configurable
• Digital peripherals: up to 26 bidirectional independently controllable I/O ports with individually configurable pull-up resistors; P0 and P2 port source drive capability with 4-level control; all IOs with high sink current drive capability (70mA); 11-bit WDT with selectable clock divider; 3 standard 80C51 timers — Timer0, Timer1, and Timer2 (Timer2 supports Capture function); 6-channel 10-bit PWM with shared period and individually adjustable duty cycles, supporting simultaneous output of three complementary PWM pairs with dead-band; 5 IOs configurable as 1/2 BIAS LCD COM outputs; 1 dedicated UART port (switchable I/O); 1 SSI multi-protocol port (UART/SPI/IIC selectable, switchable I/O); integrated 16×16-bit hardware multiplier/divider
• Analog peripherals: built-in 2.4V internal reference voltage; ADC reference voltage selectable from VDD or internal 2.4V; one internal ADC channel for direct VDD measurement; ADC conversion-complete interrupt configurable
• Power-saving modes: IDLE Mode, wake-up by any interrupt; STOP Mode, wake-up by INT0~2 and BaseTimer

• Large and small smart home appliances and smart home systems
• IoT
• Wireless communications
• Industrial control and consumer applications such as gaming consoles