Not Recommended for New Design

C8051F305-GM 8051 8-bit Microcontroller, 25 MHz, 2 Flash(kB)

The C8051F305-GM is a highly integrated mixed-signal 8-bit MCU featuring a powerful 8051 core with 25 MHz performance. The MCU offers 2 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 — ADC and 1 comparators. With on-chip Power-On Reset, VDD monitor, Watchdog timer, a ±20 internal oscillator, the C8051F305-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.

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Specifications Summary

MCU Core: 8051

MHz: 25

Flash (kB): 2

RAM (kB): 0.25

I²C: 1


Dig I/O Pins: 8



Comparators: 1

PCA Channels: 3

Timers: 3

Package Type: QFN11

Package Size (mm): 3x3

Development Tools Type
C8051F300DK C8051 MCU Development Kit Development Kits

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