SC92F8463BM28U

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.

Applications

• Smart home appliances, smart home, IoT, wireless communications, gaming consoles, and other industrial control and consumer applications

Key features

• Operating voltage: 2.4V~5.5V
• Operating temperature: -40~85℃
• Core: 1T 8051
• Flash ROM: 16 Kbytes Flash ROM (MOVC prohibits addressing 0000H~00FFH), supports up to 10,000 rewrite cycles
• IAP: Configurable via code option as 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: within ±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 configured via programmer to use one of four dividers from external crystal: /1, /2, /4, or /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: within ±4% across (4.0~5.5V) and (-20~85℃) operating conditions
• 4 selectable reset voltage levels: 4.3V, 3.7V, 2.9V, and 2.3V
• Default value determined by user-programmed Code Option selection
• 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 with 13 interrupt pins total; all configurable for rising edge, falling edge, or dual-edge triggering
• Two-level configurable interrupt priority
• Up to 26 bidirectional independently controllable I/O pins with individually configurable pull-up resistors
• P0 and P2 source drive capability with 4-level control
• All I/O pins 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 individually adjustable duty cycle; supports simultaneous output of three complementary PWM waveform pairs with dead-band
• 5 I/O pins configurable as 1/2 BIAS LCD COM outputs
• 1 dedicated UART port (switchable I/O pins)
• 1 SSI port with three selectable modes: UART/SPI/IIC (switchable I/O pins)
• 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 proximity sensing and contactless touch applications requiring high sensitivity
• High-reliability mode features strong anti-interference capability, passes 10V dynamic CS test
• Supports 23-channel touch keys and derived functions
• High-flexibility development software library support with low development complexity
• Automated debugging software support for intelligent development
• Low-power touch mode; total chip current consumption as low as 11µA 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