Specifications
| Attribute | Value |
| Package | Tray |
| Series | C8051F31x |
| ProductStatus | Obsolete |
| CoreProcessor | 8051 |
| CoreSize | 8-Bit |
| Speed | 25MHz |
| Connectivity | SMBus (2-Wire/I²C), SPI, UART/USART |
| Peripherals | POR, PWM, Temp Sensor, WDT |
| NumberofI/O | 29 |
| ProgramMemorySize | 16KB (16K x 8) |
| ProgramMemoryType | FLASH |
| RAMSize | 1.25K x 8 |
| Voltage-Supply(Vcc/Vdd) | 2.7V ~ 3.6V |
| DataConverters | A/D 21x10b |
| OscillatorType | Internal |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 32-LQFP |
Overview
Description
The C8051F310 is a high-performance, mixed-signal 8-bit microcontroller from Silicon Labs, part of the 8051 family. It features a 25 MIPS 8051 core, 8 KB flash memory, 768 B RAM, and 512 B XRAM. Key peripherals include:
- 10-bit ADC (up to 200 ksps)
- 8-bit DAC
- UART, SPI, and SMBus (I²C) interfaces
- 16-bit programmable counter array (PCA)
- On-chip voltage reference & temperature sensor
It operates at 2.7–3.6V and supports in-system debugging (ISD) via a 2-wire interface. The C8051F310 is ideal for low-power, embedded applications like sensor interfaces, industrial control, and consumer electronics. Its small footprint (QFN-20, TSSOP-20) makes it suitable for space-constrained designs.
Key advantages:
✔ High-speed 8051 core
✔ Integrated analog peripherals
✔ Low-power modes
✔ Flexible I/O (up to 17 GPIOs)
A cost-effective choice for mixed-signal applications requiring fast processing and compact design.
- 10-bit ADC (up to 200 ksps)
- 8-bit DAC
- UART, SPI, and SMBus (I²C) interfaces
- 16-bit programmable counter array (PCA)
- On-chip voltage reference & temperature sensor
It operates at 2.7–3.6V and supports in-system debugging (ISD) via a 2-wire interface. The C8051F310 is ideal for low-power, embedded applications like sensor interfaces, industrial control, and consumer electronics. Its small footprint (QFN-20, TSSOP-20) makes it suitable for space-constrained designs.
Key advantages:
✔ High-speed 8051 core
✔ Integrated analog peripherals
✔ Low-power modes
✔ Flexible I/O (up to 17 GPIOs)
A cost-effective choice for mixed-signal applications requiring fast processing and compact design.
Equivalent
The C8051F310 (Silicon Labs) is a mixed-signal MCU. Equivalent alternatives include:
- Silicon Labs EFM8BB1/2 (modern replacement)
- STMicroelectronics STM8S003 (similar 8-bit MCU)
- NXP P89LPC900 (low-power 8-bit alternative)
- Microchip PIC16F183xx (comparable features)
Check pin compatibility and peripherals for exact matches. For newer designs, EFM8BB1/2 is recommended.
- Silicon Labs EFM8BB1/2 (modern replacement)
- STMicroelectronics STM8S003 (similar 8-bit MCU)
- NXP P89LPC900 (low-power 8-bit alternative)
- Microchip PIC16F183xx (comparable features)
Check pin compatibility and peripherals for exact matches. For newer designs, EFM8BB1/2 is recommended.
Features
The C8051F310 is a mixed-signal 8-bit MCU from Silicon Labs with these key features:
- Core: High-speed 8051-compatible (up to 25 MIPS at 25 MHz).
- Memory: 8 KB Flash, 768 B RAM, 512 B XRAM.
- Analog: 10-bit ADC (200 ksps), ±3°C internal temp sensor, comparator.
- Digital: 17 I/O pins, 4x 16-bit timers, UART, SPI, SMBus (I²C).
- Power: 2.7–3.6V operation, low-power modes (Idle, Stop).
- Clock: Internal 24.5 MHz oscillator (±2% accuracy), external clock support.
- Debug: On-chip JTAG for in-system programming/debugging.
- Packages: 20-pin QFN, TSSOP.
Compact, versatile, and suitable for embedded control, sensors, and low-power applications.
- Core: High-speed 8051-compatible (up to 25 MIPS at 25 MHz).
- Memory: 8 KB Flash, 768 B RAM, 512 B XRAM.
- Analog: 10-bit ADC (200 ksps), ±3°C internal temp sensor, comparator.
- Digital: 17 I/O pins, 4x 16-bit timers, UART, SPI, SMBus (I²C).
- Power: 2.7–3.6V operation, low-power modes (Idle, Stop).
- Clock: Internal 24.5 MHz oscillator (±2% accuracy), external clock support.
- Debug: On-chip JTAG for in-system programming/debugging.
- Packages: 20-pin QFN, TSSOP.
Compact, versatile, and suitable for embedded control, sensors, and low-power applications.
Application
The C8051F310, a mixed-signal 8-bit MCU from Silicon Labs, is widely used in:
- Consumer Electronics: Remote controls, smart home devices.
- Industrial Control: Sensors, motor control, automation.
- Embedded Systems: Data logging, portable instruments.
- Automotive: Auxiliary systems (e.g., lighting, small actuators).
- IoT & Wearables: Low-power sensor nodes.
Its high-speed ADC, low power consumption, and compact size make it ideal for cost-sensitive, real-time applications.
- Consumer Electronics: Remote controls, smart home devices.
- Industrial Control: Sensors, motor control, automation.
- Embedded Systems: Data logging, portable instruments.
- Automotive: Auxiliary systems (e.g., lighting, small actuators).
- IoT & Wearables: Low-power sensor nodes.
Its high-speed ADC, low power consumption, and compact size make it ideal for cost-sensitive, real-time applications.
Package
The C8051F310 microcontroller is available in a 32-pin LQFP (Low-Profile Quad Flat Package). This compact, surface-mount package is suitable for space-constrained applications, offering good thermal and electrical performance. The LQFP has a lead pitch of 0.8mm, making it compatible with standard PCB assembly processes.
