SOC(Shenzhen SinOne Microelectronics) SC92F8462BX20U

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 dual-mode capacitive touch circuit with low-power capability, 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, 11-channel 12-bit high-precision ADC, 6-channel independent 10-bit PWM, an internal 1% high-precision high-frequency 12/6/2MHz oscillator and a 4%-accuracy low-frequency 128K oscillator, an external crystal oscillator interface, one UART, and one SSI multi-function communication port (UART/SPI/IIC selectable). To enhance reliability and simplify customer circuit design, 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 excellent EMI immunity and outstanding capacitive touch performance, making it well suited for touch key and master 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 prohibits addressing 0000H~00FFH), 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 24MHz high-frequency oscillator (fHRC); when used as system clock source, fSYS can be set to 12/6/2MHz via programmer
• Frequency error: no more than ±1% across (3.0V~5.5V) and (-20~85℃) operating conditions
• Built-in high-frequency crystal oscillator circuit
• Supports external 2~16MHz oscillator
• When used as system clock source, fSYS can be set via programmer to 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 128kHz low-frequency LRC oscillator: usable as Base Timer clock source with STOP wake-up capability; usable as WDT clock source
• Frequency error: no more than ±4% across (4.0V~5.5V) and (-20~85℃) operating conditions
• 4 selectable reset voltage levels: 4.3V, 3.7V, 2.9V, 2.3V
• Default value is the selection written by user in Code Option
• 2-wire JTAG programming and emulation interface
• 12 interrupt sources: Timer0, Timer1, Timer2, INT0~2, ADC, PWM, UART, SSI, Base Timer, TK
• 3 external interrupt vectors, 13 interrupt pins total, all configurable for rising edge, falling edge, or both-edge triggering
• 2-level configurable interrupt priority
• Up to 26 bidirectional independently controllable I/O ports with individually configurable pull-up resistors
• P0 and P2 port source drive capability: 4-level control
• All I/Os support high sink current drive capability (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 individually adjustable duty cycle; supports simultaneous output of 3 pairs of complementary PWM waveforms with dead-band
• 5 I/Os configurable as 1/2 BIAS LCD COM outputs
• 1 dedicated UART port (switchable I/O)
• 1 SSI port selectable among UART/SPI/IIC (switchable I/O)
• Integrated 16×16-bit hardware multiplier/divider
• 23-channel low-power dual-mode touch circuit, configurable for high-sensitivity mode or high-reliability mode
• High-sensitivity mode supports touchless key detection, proximity sensing, and other applications requiring high sensitivity
• High-reliability mode offers strong anti-interference capability, passing 10V dynamic CS test
• Supports 23 touch keys and derived functions
• Flexible development software library support for low development complexity
• Automated debugging software support for intelligent development
• Low-power touch mode: overall chip power consumption as low as 11uA during single touch key wake-up
• 11-channel 12-bit ±2LSB ADC
• Built-in 2.4V reference voltage
• 2 ADC reference voltage options: VDD and internal 2.4V
• 1 internal ADC channel for direct VDD measurement
• Configurable ADC conversion complete interrupt
• IDLE Mode: wake-up by any interrupt
• STOP Mode: wake-up by INT0~2, BaseTimer, and TK

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