SILICON LABS C8051F342-GM 8 Bit MCU, C8051 Family C8051F34x Series Microcontrollers, 8051, 50 MHz, 64 KB, 32 Pins, QFN-EP

C8051F342-GM microcontroller (MCU) features an on-board universal serial bus (USB) 2.0 function controller with an integrated transceiver and on-chip clock recovery. No external resistors, crystal, voltage regulator, EEPROM, or other components are required for USB applications. The MCU includes a powerful 8051 core with 50MHz performance along with 64KB flash, 4.25KB RAM. On-chip analogue features include a 10-bit, 21-channel, 200Ksps ADC, voltage reference, a ±1.5 internal oscillator, 2 comparators, and a temperature sensor. Integrating additional communication interfaces along with rich analogue in a 5x5 mm, QFN32 package, this provides a truly single-chip solution for embedded USB applications.

• VREF from external pin, internal reference, or VDD, built-in temperature sensor
• Two comparators, internal voltage reference, brown-out detector and POR circuitry
• USB specification 2.0 compliant, supports eight flexible endpoints
• On-chip debug circuitry facilitates full speed, non-intrusive in-system debug (no emulator required)
• Voltages from 3.6 to 5.25V supported using on-chip voltage regulator
• Pipelined instruction architecture; executes 70% of instructions in 1 or 2 system clocks
• Hardware enhanced SPIâ�¢, SMBusâ�¢, and one or two enhanced UART serial ports
• External osc: crystal, RC, C or clock (1 or 2 pin modes), can switch between clock source on-the-fly
• QFN32 package
• Temperature rating range from -40 to +85°C