C8051F811-GSR

Overview

The C8051F811-GSR is an 8-bit mixed-signal ISP Flash microcontroller from the C8051F80x-83x family, manufactured by Silicon Labs. It features a pipelined CIP-51 core operating at up to 25 MIPS with a 25 MHz clock. The device includes 16 kB of in-system programmable Flash memory and 512 bytes of internal data RAM. Key peripherals include a 10-bit ADC supporting up to 500 ksps, a capacitive sense module with 16-bit resolution, comparators, and enhanced serial interfaces such as UART, SMBus, and SPI. It operates on a supply voltage range of 1.8 V to 3.6 V and is available in a 16-pin SOIC package.

Feature Summary

• Integrates a high-speed pipelined 8051-compatible core for efficient instruction execution.
• Includes a capacitive sense module supporting buttons, sliders, and proximity sensing with auto-scan capabilities.
• Features on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Provides flexible clock sources including an internal oscillator and support for external crystals or RC circuits.

Applications

• Capacitive touch interface implementations
• Portable battery-powered devices requiring low voltage operation
• Industrial control systems utilizing analog signal monitoring

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package type. Check for end-of-life status or discontinuance notifications prior to procurement. Ensure compliance with relevant environmental regulations applicable to your region.

Selection Notes

Evaluate the 16 kB Flash capacity against application code size requirements. Assess if the 10-bit ADC resolution meets sensor accuracy needs. Consider the 1.8 V to 3.6 V supply range compatibility with system power rails. Review pinout constraints for the 16-pin SOIC package to ensure sufficient I/O availability.

Part Context

This component belongs to the C8051F80x-83x series of mixed-signal microcontrollers. These devices are designed as complete system-on-a-chip solutions, integrating analog and digital peripherals to reduce external component count. The series targets applications requiring cost-effective, high-performance 8-bit processing with extensive connectivity options.

Replacement Considerations

Consult official documentation for cross-reference recommendations. Verify pin compatibility and software register mapping before substitution. Ensure replacement parts meet identical electrical specifications and package dimensions.