C8051F813-GUR

Overview

The C8051F813-GUR is an 8-bit mixed-signal ISP Flash microcontroller from Silicon Labs, part of the C8051F80x-83x family. It features a high-speed 8051 core with up to 25 MIPS throughput at 25 MHz. The device integrates 8 kB of Flash memory and 512 bytes of internal data RAM. Key peripherals include a 10-bit ADC supporting up to 500 ksps, a capacitance-to-digital converter for capacitive sensing, and multiple digital communication interfaces such as UART, SMBus, and SPI. It operates within a supply voltage range 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.
• Pipelined instruction architecture executes 70% of instructions in one or two system clocks for efficient processing.
• Programmable digital crossbar allows flexible assignment of peripheral functions to port I/O pins.

Applications

• Capacitive touch interface designs
• Portable battery-powered instrumentation
• Industrial control systems requiring low-voltage operation

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and temperature grade. Check current lifecycle status as this model may be discontinued or restricted. Ensure compliance with RoHS directives and moisture sensitivity levels before integration into production assemblies.

Selection Notes

Evaluate the C8051F813-GUR against other members of the C8051F8xx family based on memory size and pin count requirements. Consider the availability of development tools like 8-bit Microcontroller Studio for software support. Assess power consumption profiles across different operating modes if battery life is critical. Verify that the integrated analog peripherals meet the precision needs of the target application.

Part Context

This component belongs to the C8051F80x-83x series of mixed-signal microcontrollers designed for cost-sensitive embedded applications. The series emphasizes high integration by combining digital and analog functions on a single chip. It utilizes the CIP-51 core architecture which maintains compatibility with standard 8051 instruction sets while offering enhanced performance characteristics suitable for various consumer and industrial electronics.

Replacement Considerations

Consult the official product selection guide for compatible alternatives within the C8051F8xx family. Verify pinout and register compatibility before substituting with other variants. Note that this specific part number is marked as Not Recommended for New Designs.