C8051F310

Overview

The C8051F310 is an 8-bit mixed-signal microcontroller from Silicon Labs, featuring a high-speed CIP-51 core operating at up to 25 MHz. It integrates 16 kB of in-system programmable Flash memory and 1280 bytes of internal data RAM. The device includes a 10-bit ADC with speeds up to 200 ksps, two voltage comparators, and a built-in temperature sensor. Digital peripherals consist of hardware-enhanced UART, SMBus, SPI, four 16-bit timers, and a 16-bit PCA. It operates on a supply voltage of 2.7 V to 3.6 V within a temperature range of –40 °C to +85 °C.

Feature Summary

• High-performance pipelined 8051-compatible core executing most instructions in one or two system clocks.
• Integrated analog subsystem including a 10-bit ADC, voltage comparators, and temperature sensor.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Programmable digital crossbar architecture allowing flexible assignment of peripheral functions to GPIO pins.

Applications

• Voltage and current measurement systems
• Wireless thermal network monitoring
• Industrial control applications

Procurement Notes

Verify the specific package type required for your design, as the C8051F31x family utilizes multiple form factors including 32-pin LQFP, 28-pin QFN, and 24-pin QFN. Confirm that the selected variant matches the necessary pin count and peripheral availability. Ensure compatibility with existing development tools and check for any RoHS compliance requirements relevant to your manufacturing process before finalizing orders.

Selection Notes

Select the C8051F310 when a fully integrated mixed-signal solution is needed with high throughput and low power consumption. It is suitable for designs requiring precise analog measurements via its 10-bit ADC and comparators alongside robust digital communication interfaces. Consider this part for cost-sensitive applications where reducing external component count and board space is critical while maintaining standard 8051 software compatibility.

Part Context

The C8051F310 belongs to the C8051F31x family of 8/16 kB ISP Flash MCUs produced by Silicon Laboratories. This series represents a complete system-on-a-chip solution, combining a fast microcontroller core with extensive analog and digital peripherals. The family is designed to simplify embedded system design by integrating essential components typically found on separate chips onto a single die.

Replacement Considerations

Other members of the C8051F31x family, such as the C8051F311 through C8051F317, offer code and footprint compatibility with variations in package size and I/O counts. Verify pinout alignment and peripheral availability when substituting these variants to ensure seamless integration into existing hardware layouts.

FAQ

What is the maximum execution speed of the C8051F310 core?

The CIP-51 core achieves up to 25 MIPS throughput when driven by a 25 MHz clock source.

Does the C8051F310 support in-circuit programming?

Yes, it features 16 kB of in-system programmable (ISP) Flash memory that can be reprogrammed in 512-byte sectors.

How does the device handle system debugging?

It includes on-chip debug circuitry that supports full-speed, non-intrusive in-system debugging, allowing breakpoints and memory inspection without requiring external emulation hardware.