8-bit Microcontroller

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The C8051F300-GM is a highly integrated mixed-signal 8-bit MCU featuring a powerful 8051 core with 25 MHz performance. The MCU offers 8 kB Flash, 0.25 kB RAM along with additional communication interfaces and 3 x 16-bit Timers in a 3x3 mm, QFN11. On-chip analog features include a 8-bit, 8-ch., 1 Msps ADC and 1 comparators. With on-chip Power-On Reset, VDD monitor, Watchdog timer, a ±2 internal oscillator, the C8051F300-GM MCU is a truly stand-alone System-on-chip solution making it ideal for applications such as battery chargers, electronic toys and games, motor control and optical communications.

Symmetry Electronics is an authorized Silicon Labs distributor.


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Analog Peripherals
- 8-Bit ADC
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 A)
On-chip Debug
- On-chip debug circuitry facilitates full speed, nonintrusive 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
Supply Voltage 2.7 to 3.6 V
- Typical operating current: 6.6 mA @ 25 MHz; 14 A @ 32 kHz
- Typical stop mode current: 0.1 A
- Temperature range: 40 to +85 C
Full Technical Data Sheet
- C8051F300/1/2/3/4/5
High Speed 8051 c 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
- 256 bytes internal data RAM
- 8 kB 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

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