C8051F310R

Overview

The C8051F310R is an 8-bit microcontroller from Silicon Labs, part of the C8051F31x family. It features a high-speed pipelined 8051 core operating at up to 25 MHz with 25 MIPS throughput. The device includes 16 kB of in-system programmable Flash memory and 1280 bytes of internal data RAM. Key peripherals include a 10-bit ADC supporting up to 200 ksps with up to 21 external inputs, two comparators, four 16-bit timers, a Programmable Counter Array (PCA), and hardware-enhanced UART, SMBus, and SPI interfaces. It operates on a supply voltage of 2.7 V to 3.6 V within a temperature range of –40 °C to +85 °C. The component is housed in a 32-pin LQFP package.

Feature Summary

• High-performance 8051 core with pipelined architecture for fast instruction execution
• Integrated analog peripherals including a multi-channel 10-bit ADC and low-current comparators
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators
• Programmable digital crossbar allows flexible configuration of peripheral pins

Applications

• Voltage and current measurement systems
• Data acquisition applications requiring analog signal processing
• Portable instruments utilizing low-power modes
• Industrial control systems operating in extended temperature ranges

Procurement Notes

Verify the specific revision level against the latest datasheet documentation prior to implementation. Confirm that the 32-LQFP package dimensions align with the target PCB footprint requirements. Ensure power supply rails strictly adhere to the specified 2.7 V to 3.6 V operational limits to maintain device integrity and performance specifications.

Selection Notes

Select this component when a fully integrated mixed-signal solution is required alongside standard 8051 compatibility. It is suitable for designs needing multiple analog inputs and serial communication interfaces without external support chips. Consider the available GPIO count and memory size relative to application complexity before finalizing the choice.

Part Context

This device belongs to the C8051F31x series of mixed-signal microcontrollers. It shares architectural similarities with other members like the C8051F311 through F317, differing primarily in memory capacity and package type. The family emphasizes high integration by combining digital processing capabilities with extensive analog functionality on a single silicon die.

Replacement Considerations

Consult official substitution lists for compatible variants within the C8051F31x family. Verify pinout and register compatibility if replacing with other members of the series.