The C8051F345-GQ is a fully integrated mixed-signal system-on-a-chip 8-bit USB Flash Microcontroller featuring high-speed pipelined 8051-compatible core performance with a 25MIPS CPU, 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 32kB flash and 2.25kB RAM. On-chip analog features a 10-bit 21-channel 200ksps ADC, voltage reference, a ±1.5% internal oscillator, 2 comparators and a temperature sensor. Integrating I2C, SPI, UART, USB communication interfaces along with rich analog.
- Pipelined instruction architecture - Executes 70% of instruction set in 1 or 2 system clocks
- Expanded interrupt handler
- Two comparators
- USB specification 2.0 compliant
- Full speed (12Mbps) or low speed (1.5Mbps) operation
- Integrated clock recovery - no external crystal required for full speed or low speed
- Supports eight flexible endpoints
- 1kB USB Buffer memory
- Integrated transceiver, no external resistors required
- On-chip debug circuitry facilitates full speed, non-intrusive in-system debug
- Provides breakpoints, single stepping, inspect/modify memory and registers
- Superior performance to emulation systems using ICE-chips, target pods and sockets
- Hardware enhanced UART, SMBus? and SPI? serial ports
- Four general purpose 16-bit counter/timers
- 16-bit Programmable counter array (PCA) with five capture/compare modules
- External memory interface (EMIF)
- Internal Oscillator - ±0.25% accuracy with clock recovery enabled
- External oscillator - Crystal, RC, C or clock (1 or 2 pin modes)
- Low frequency (80kHz) Internal oscillator
- Can switch between clock sources on-the-fly
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