C8051F813-GMR

Overview

The C8051F813-GMR is an 8-bit mixed-signal ISP Flash microcontroller from the Silicon Labs C8051F80x-83x family. It features a high-speed 8051 core with up to 25 MIPS throughput at a 25 MHz clock frequency. The device includes 8 kB of in-system programmable Flash memory and 512 bytes of internal data RAM. Key analog peripherals consist of a 10-bit ADC supporting up to 500 ksps, a capacitance-to-digital converter for capacitive sensing, and comparators. Digital interfaces include UART, SMBus, and SPI. It operates on a supply voltage of 1.8 V to 3.6 V and is available in a 24-pin QSOP package.

Feature Summary

• Integrated capacitance-to-digital converter supports buttons, sliders, wheels, and proximity sensing with auto-scan capabilities.
• On-chip debug circuitry enables full-speed, non-intrusive in-system debugging without external emulators.
• High-speed pipelined 8051 core executes 70% of instructions in one or two system clocks.
• Flexible clock sources allow switching between internal oscillators and external crystals or RC circuits.

Applications

• Capacitive touch interface designs
• Battery-powered sensor nodes
• Industrial control systems
• Consumer electronics

Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status as indicated in official documentation. Check for moisture sensitivity classification prior to storage and handling. Ensure the specific suffix matches required packaging options. Review datasheet revision history for any errata updates.

Selection Notes

Select this MCU for applications requiring integrated capacitive sensing alongside standard analog conversion. Evaluate memory requirements against the 8 kB Flash and 512-byte RAM limits. Consider the 25 MHz maximum clock speed for processing needs. Verify package availability and pin compatibility for PCB layout constraints.

Part Context

This component belongs to the C8051F80x-83x mixed-signal ISP Flash MCU family. These devices are designed for cost-sensitive embedded applications requiring high integration. The family shares common architectural features including the CIP-51 core and extensive peripheral sets. This specific model offers a balanced configuration of memory and I/O capabilities.

Replacement Considerations

Consult the manufacturer's ordering guide for direct cross-references within the C8051F8xx series. Verify pinout compatibility when substituting with other packages like QFN or SOIC variants. Ensure software compatibility with the selected replacement part number.