SOC(Shenzhen SinOne Microelectronics) SC92F7545P32R

The SC92F7X45 series is an enhanced 1T 8051-core industrial-grade Flash microcontroller with an instruction set fully compatible with the traditional 8051 product family. The SC92F7545 features 32KB Flash ROM, while the SC92F7445 features 16KB Flash ROM. The SC92F7X45 integrates 2KB SRAM, 128-byte EEPROM, up to 30 GP I/Os, 15 external interrupt-capable IOs, three 16-bit timers, 12-channel 12-bit high-precision ADC, one analog comparator, three-channel 12-bit PWM, tiered IO drive control, one 16×16-bit hardware multiplier/divider, internal ±1% high-precision high-frequency 16/8/4/1.33MHz oscillator and ±4% accuracy low-frequency 128K oscillator, UART and other communication interfaces. To enhance reliability and simplify customer circuitry, the SC92F7X45 also integrates a 4-level selectable voltage LVR, 2.4V reference ADC voltage, low-power WDT, and other high-reliability circuits. The SC92F7X45 offers excellent EMI immunity and is well-suited for IoT control, large and small smart home appliances, smart home systems, chargers, power supplies, aircraft models, walkie-talkies, wireless communications, gaming consoles, and other industrial control and consumer applications.

• Operating Voltage: 2.4V~5.5V
• Operating Temperature: -40~85°C
• Package: LQFP32
• Core: Ultra-fast single-byte instruction 1T 8051
• MOVC prohibited addressing of 256B from 0000H~00FFH
• IAP: Configurable via code option to 0K, 0.5K, 1K, or 32KB (SC92F7545) and 16KB (SC92F7445)
• EEPROM: 128 Byte, erase-free write, 100,000 write cycles, data retention over 10 years
• SRAM: Internal 256 Byte, external 1792 Byte, PWM RAM 6 Byte
• System Clock: Built-in high-frequency 16MHz oscillator; system clock selectable via programmer: 16MHz@2.9~5.5V, 8/4/1.33MHz@2.4~5.5V; frequency error across (4.0~5.5V) and (-20~85°C) operating conditions not exceeding ±1%
• Built-in low-frequency 128kHz LRC oscillator, usable as clock source for BT and WDT, and for waking up from STOP mode; frequency error across (4.0~5.5V) and (-20~85°C) operating conditions not exceeding ±4% after register calibration
• Low Voltage Reset (LVR): 4 selectable reset voltage levels — 4.3V, 3.7V, 2.9V, 2.3V; default value determined by user-programmed Code Option
• Flash Programming and Emulation: 2-wire JTAG programming and emulation interface
• Interrupts (INT): 12 interrupt sources — Timer0, Timer1, Timer2, INT0~2, ADC, PWM, UART, SSI, Base Timer, CMP; 3 external interrupt vectors with 15 interrupt pins total, all configurable for rising edge, falling edge, or both-edge triggering; 2-level interrupt priority
• Digital Peripherals: Up to 30 bidirectional independently controllable I/O ports with individually configurable pull-up resistors; P0~P2 source drive capability in 4 levels; all I/Os with high sink current capability (50mA); 11-bit WDT with selectable clock divider ratio; 3 standard 80C51 timers — Timer0, Timer1, Timer2; 3-channel 12-bit PWM with shared period and independently adjustable duty cycles; 1 dedicated UART port; 1 SSI port selectable among UART/SPI/I²C; integrated 16×16-bit hardware multiplier/divider
• Analog Peripherals: 12-channel 12-bit ±2LSB ADC with built-in 2.4V reference voltage; 2 selectable ADC reference voltages — VDD and internal 2.4V; 1 internal ADC channel for direct VDD measurement; ADC conversion-complete interrupt configurable; 1 analog comparator with 3 inputs and 1 reference voltage input; 16-level selectable comparison voltage (VDD voltage divider)
• Power-Saving Modes: IDLE Mode, wake-up by any interrupt; STOP Mode, wake-up by INT0~2 and BT

• IoT control
• Small and large smart appliances and smart home
• Chargers
• Power supplies
• Drone/RC aircraft
• Walkie-talkies
• Wireless communications
• Game consoles