System Overview
C8051F350/1/2/3 devices are fully integrated mixed-signal System-on-a-Chip MCUs. Highlighted features
are listed below. Refer to Ta b l e 1.1for specific product feature selection.

• High-speed pipelined 8051-compatible microcontroller core (up to 50 MIPS)
• In-system, full-speed, non-intrusive debug interface (on-chip)
• 24 or 16-bit single-ended/differential ADC with analog multiplexer
• Two 8-bit Current Output DACs
• Precision programmable 24.5 MHz internal oscillator
• 8 kB of on-chip Flash memory
• 768 bytes of on-chip RAM
• SMBus/I2C, Enhanced UART, and SPI serial interfaces implemented in hardware
• Four general-purpose 16-bit timers
• Programmable counter/timer array (PCA) with three capture/compare modules and watchdog timer function
• On-chip power-on reset, VDDmonitor, and temperature sensor
• On-chip voltage comparator
• 17 Port I/O (5 V tolerant)

Analog Peripherals
- 24 or 16-Bit ADC
  •No missing codes
  • 0.0015% nonlinearity
  • Programmable conversion rates up to 1 ksps
  • 8-Input multiplexer
  • 1x to 128x PGA
  • Built-in temperature sensor
- Two 8-Bit Current Output DACs
- Comparator
  • Programmable hysteresis and response time
  • Configurable as interrupt or reset source
  • Low current (0.4 µA)
On-chip Debug
- On-chip debug circuitry facilitates full speed, non intrusive in-system debug (No emulator required)
- Provides breakpoints, single stepping, inspect/modify memory and registers
- Superior performance to emulation systems using ICE-Chips, target pods, and sockets
- Low Cost, CompleteDevelopment Kit
Supply Voltage 2.7 to 3.6 V
- Typical operating current: 5.8 mA @ 25 MHz;
                                    11 µA @ 32 kHz
- Typical stop mode current: 0.1 µA
Temperature Range: –40 to +85 °C
High Speed 8051 µC Core
- Pipelined Instruction architecture; executes 70% of instructions in 1 or 2 system clocks
- Up to 50 MIPS throughput
- Expanded interrupt handler
Memory
- 768 Bytes (256 + 512) On-Chip RAM
- 8 kB Flash; In-system programmable in 512-byte Sectors
Digital Peripherals
- 17 Port I/O; All 5 V tolerant with high sink current
- Enhanced UART, SMBus™, and SPI™ Serial Ports
- Four general purpose 16-bit counter/timers
- 16-bit programmable counter array (PCA) with three capture/compare modules
- Real time clock mode using PCA or timer and external clock source
Clock Sources
- Internal Oscillator: 24.5 MHz with ± 2% accuracy supports UART operation
- External Oscillator: Crystal, RC, C, or clock (1 or 2 pin modes)
- Clock multiplier to achieve 50 MHz internal clock
- Can switch between clock sources on-the-fly
28-Pin QFN or 32-Pin LQFP Package
- 5 x 5 mm PCB footprint with 28-QFN