C8051F313

Overview

The C8051F313 is an 8-bit microcontroller from the Silicon Labs C8051F31x family, featuring a high-speed CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 8 kB of in-system programmable Flash memory and 1280 bytes of internal data RAM. The device includes a 12-bit ADC supporting up to 200 ksps conversion rates and offers 25 general-purpose I/O pins. Operating within a supply voltage range of 2.7 V to 3.6 V, it supports industrial temperatures from -40 °C to +85 °C and utilizes a 28-pin QFN package.

Feature Summary

• Features a pipelined CIP-51 architecture that executes most instructions in one or two system clocks for high throughput.
• Includes on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Integrates a 12-bit analog-to-digital converter with programmable window detection and a built-in temperature sensor.
• Provides hardware-enhanced serial ports including UART, SMBus, and SPI alongside a programmable counter array.

Applications

• Data acquisition systems requiring precise analog signal processing
• Industrial control applications needing robust digital communication interfaces
• Portable instruments utilizing low-power operational modes

Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to confirm package type and temperature rating. Ensure compatibility with existing PCB footprints for the 28-pin QFN configuration. Confirm RoHS compliance status as per the latest revision notes. Cross-reference the part number with current availability lists to avoid obsolete stock issues during procurement planning.

Selection Notes

Select this model when 8 kB of Flash memory suffices for application firmware requirements. Choose this variant over larger memory options if cost and physical footprint are primary constraints. Verify that the 25 available GPIO pins meet the interface count needs. Ensure the 2.7 V to 3.6 V operating voltage aligns with the system power design.

Part Context

This component belongs to the C8051F31x series of mixed-signal microcontrollers designed for embedded applications. The family shares a common instruction set and peripheral architecture while varying in memory size and package options. It represents a fully integrated system-on-chip solution combining digital and analog capabilities.

Replacement Considerations

Direct substitutes include other members of the C8051F31x family such as the C8051F310, C8051F311, C8051F312, C8051F314, C8051F315, C8051F316, and C8051F317. These parts maintain code and footprint compatibility but differ in Flash capacity or package style.

FAQ

Does the C8051F313 support external crystal-less UART operation?

Yes, the device features a programmable internal oscillator with sufficient accuracy to support crystal-less UART operation.

What is the maximum sampling rate of the ADC on this MCU?

The integrated 12-bit ADC supports a maximum sampling rate of 200 ksps.