C8051F320

Features

High speed 8051 microcontroller core
- 70% of instructions are executed in 1 or 2 system clocks
- 24 MIPS throughput with 24 MHz clock
Memory
- 2304 bytes of internal RAM (1k + 256 + 1k USB FIFO)
- 16kBytes flash, in-system programmable in 512-byte sectors
Digital Peripherals
- 21 I/O lines and 4 input only lines, all 5V tolerant
- Hardware enhanced SPI, enhanced UART, and SMBus serial ports
- Four general purpose 16-bit counters/timers
- 16-bit programmable counter array with five capture/compare modes
Analog Peripherals
- 10-bit ADC
  - Up to 200 ksps (kilo samples per second)
  - Up to 17 or 13 external single-ended or differential inputs
  - VREF from external pin, internal reference or VDD
  - Built-in temperature sensor
  - External conversion start input
- Two comparators
- Internal voltage reference
- POR/Brown-out detector
USB Function Controller
- USB Specification 2.0 compliant
- Full speed (12 Mbps) or Low speed (1.5 Mbps) operation
- Integrated clock recovery; no external crystal required for full or low speed
- Supports eight flexible endpoints
- 1kByte USB buffer memory
- Integrated transceiver; no external resistors required
Clock Sources
- Internal Oscillator: 0.25% accuracy with Clock Recovery enabled
- External Oscillator: Crystal, RC, C or Clock
On-chip Debug
- Non-intrusive in-system debug
- Breakpoints, single-stepping, inspect/modify memory and registers