SOC(Shenzhen SinOne Microelectronics) SC92F8462BM20U

SC92F8463B/8462B/8461B (hereinafter referred to as SC92F846XB) is an enhanced high-speed 1T 8051-core industrial-grade Flash microcontroller with integrated capacitive touch key functionality. Its instruction set is fully compatible with the traditional 8051 product family.

The SC92F846XB features a built-in 23-channel low-power dual-mode capacitive touch circuit, which can optionally operate in STOP Mode. The SC92F846XB also integrates 16 Kbytes Flash ROM, 1 Kbytes SRAM, 128 bytes EEPROM, up to 26 GP I/Os, 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 12/6/2MHz oscillator, a 4% accuracy low-frequency 128K oscillator, an external crystal oscillator option, one UART, and one SSI port (selectable among UART/SPI/IIC). To enhance reliability and simplify customer circuitry, the SC92F846XB also integrates high-reliability circuits such as a 4-level selectable voltage LVR and a 2.4V reference voltage for ADC. The SC92F846XB offers outstanding EMI immunity and excellent touch key performance, making it well-suited for touch key and 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 applications.

• Operating Voltage: 2.4V~5.5V
• Operating Temperature: -40~85℃
• Core: 1T 8051
• Flash ROM: 16 Kbytes Flash ROM (MOVC prohibits addressing 0000H~00FFH), 10,000 write cycles endurance
• 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 24MHz oscillator (fHRC); when used as system clock source, fSYS can be programmed to 12/6/2MHz; frequency error: within ±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 can be programmed to select one of four dividers: 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 Base Timer clock source, capable of waking from STOP mode, and usable as WDT clock source; frequency error: within ±4% across operating conditions (4.0V~5.5V) and (-20~85℃)
• 4 selectable reset voltage levels: 4.3V, 3.7V, 2.9V, and 2.3V; default value determined by user-programmed Code Option
• 2-wire JTAG programming and emulation interface
• 12 interrupt sources: Timer0, Timer1, Timer2, INT0~2, ADC, PWM, UART, SSI, Base Timer, and TK; 3 external interrupt vectors, 13 interrupt pins total; all configurable for rising edge, falling edge, or dual-edge triggering; 2-level interrupt priority settable
• Up to 26 bidirectional independently controllable I/O ports; individual pull-up resistor configuration; P0 and P2 source drive capability with 4-level control; all I/Os support high sink current drive (70mA)
• 11-bit WDT with selectable clock divider ratio
• 3 standard 80C51 timers: Timer0, Timer1, and Timer2; Timer2 supports Capture function
• 6-channel 10-bit PWM with shared period and independently adjustable duty cycles; supports simultaneous output of 3 complementary PWM pairs with dead-band control
• 5 IOs configurable as 1/2 BIAS LCD COM outputs
• 1 independent UART port (switchable I/O pins)
• 1 SSI port: selectable among UART/SPI/IIC (switchable I/O pins)
• Integrated 16×16-bit hardware multiplier/divider
• 23-channel low-power dual-mode touch circuit; configurable to high-sensitivity mode or high-reliability mode: high-sensitivity mode supports air-gap key touch, proximity sensing, and other applications requiring high sensitivity; high-reliability mode provides strong noise immunity, passes 10V dynamic CS test; supports 23-channel touch keys and derived functions; flexible software library with low development complexity; automated calibration software support for intelligent development; low-power touch mode with overall chip current as low as 11uA during single touch key wake-up
• 11-channel 12-bit ±2LSB ADC
• Built-in 2.4V internal reference voltage; ADC reference voltage: 2 options — VDD or internal 2.4V; one internal ADC channel for direct VDD measurement; ADC conversion complete interrupt configurable
• IDLE Mode: wake-up by any interrupt; STOP Mode: wake-up by INT0~2, BaseTimer, or TK

• Large and small smart appliances and smart home
• IoT
• Wireless communications
• Gaming consoles