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System Overview

C8051F300/1/2/3/4/5 devices are fully integrated mixed-signal system-on-a-chip MCUs. Highlighted features are listed below. Refer to Table 1.1 on page 14for specific product feature selection.

? High-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS)

? In-system, full-speed, non-intrusive debug interface (on-chip)

? True 8-bit 500 ksps 11-channel ADC with programmable gain pre-amplifier and analog multiplexer

(C8051F300/2 only)

? Precision programmable 25 MHz internal oscillator

?Up to 8 kB of on-chip Flash memory

? 256 bytes of on-chip RAM

?SMBus/I2C and Enhanced UART serial interfaces implemented in hardware

? Three 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

? Byte-wide I/O port (5 V tolerant)

Analog Peripherals

- 8-Bit ADC (F300/2 only)

? Up to 500 ksps

? Up to 8 external inputs

? Programmable amplifier gains of 4, 2, 1, & 0.5

? VREF from external pin or VDD

? Built-in temperature sensor

? External conversion start input - Comparator

? Programmable hysteresis and response time

? Configurable as interrupt or reset source

? Low current (<0.5 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

- Complete development kit

Supply Voltage 2.7 to 3.6 V

- Typical operating current: 6.6 mA @ 25 MHz; 14 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 25 MIPS throughput with 25 MHz clock

- Expanded interrupt handler

Memory

- 256 bytes internal data RAM

- Up to 8 kB (‘F300/1/2/3), 4 kB (‘F304), or 2 kB (‘F305) Flash; 512 bytes are reserved in the 8 kB devices

Digital Peripherals

- 8 Port I/O; All 5 V tolerant with high sink current

- Hardware enhanced UART and SMBus? serial ports

- Three 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)

- Can switch between clock sources on-the-fly; Useful in power saving modes

11-Pin Quad Flat No-Lead (QFN) RoHS Package

- 3 x 3 mm PWB footprint