8-bit Microcontroller

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The C8051F310 is a highly integrated mixed-signal 8-bit MCU featuring a powerful 8051 core with 25 MHz performance. The MCU offers 16 kB Flash, 1.25 kB RAM along with additional communication interfaces and 4 x 16-bit Timers in a 7x7 mm, QFP32. On-chip analog features include a 10-bit, 21-ch., 200 ksps ADC and 2 comparators. With on-chip Power-On Reset, VDD monitor, Watchdog timer, a ±2 internal oscillator, the C8051F310 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
- 10-Bit ADC (C8051F310/1/2/3/6 only)
Up to 200 ksps
Up to 21, 17, or 13 external single-ended or differential inputs
VREF from external pin or VDD
Built-in temperature sensor
External conversion start input
- Comparators
Programmable hysteresis and response time
Configurable as interrupt or reset source (Comparator0)
Low current (< 0.5 A)
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: 5 mA at 25 MHz; 11 A at 32 kHz
- Typical stop mode current: 0.1 A
- Temperature range: 40 to +85 C
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
- 1280 bytes internal data RAM (1024 + 256)
- 16 kB (C8051F310/1/6/7) or 8 kB (C8051F312/3/4/5) Flash; In-system programmable in 512-byte sectors
Digital Peripherals
- 29/25/21 Port I/O;
All 5 V tolerant with high sink current
- Hardware enhanced UART, SMBus, and SPI serial ports
- Four general purpose 16-bit counter/timers
- 16-bit programmable counter array (PCA) with five capture/compare modules
- Real time clock capability using PCA or timer and external clock source
Clock Sources
- Internal oscillator: 24.5 MHz with 2% accuracy supports crystal-less 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
- 32-pin LQFP (C8051F310/2/4)
- 28-pin QFN (C8051F311/3/5)
- 24-pin QFN (C8051F316/7)

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8-bit Microcontroller