C8051F823-GSR

Overview

The C8051F823-GSR is a 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 up to 16 kB of in-system programmable Flash memory and up to 512 bytes of internal data RAM. Key analog peripherals consist of a 10-bit ADC supporting up to 500 ksps, a capacitive sense module with 16-bit resolution, and a comparator. Digital interfaces include an enhanced UART, SMBus, and SPI. It operates on a supply voltage of 1.8 to 3.6 V within a temperature range of –40 to +85 °C.

Feature Summary

• Integrated capacitive sense module supporting buttons, sliders, wheels, and proximity sensing with auto-scan capabilities.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• High-speed pipelined 8051 core executing 70% of instructions in one or two system clocks for efficient processing.
• Flexible clock sources including a 24.5 MHz ±2% internal oscillator and support for external crystal or RC configurations.

Applications

• Capacitive touch interface implementations such as buttons and sliders
• Mixed-signal control systems requiring analog-to-digital conversion
• Low-voltage embedded applications operating between 1.8 V and 3.6 V

Procurement Notes

Verify the specific suffix 'GSR' against the manufacturer's current ordering guide to confirm package type and tape-and-reel specifications. Confirm that the component status aligns with project requirements, as this family may be designated as Not Recommended for New Designs. Ensure compatibility with existing PCB footprints for the SOIC-16 package if applicable.

Selection Notes

Select this part when a complete mixed-signal solution is required within a small footprint. The integrated capacitive sense unit reduces external component count for touch applications. Verify that the 10-bit ADC resolution and 500 ksps speed meet signal acquisition needs. Check pin availability for required digital peripherals like UART and SPI before finalizing the design.

Part Context

This component belongs to the C8051F80x-83x series of mixed-signal microcontrollers. These devices are designed for applications needing high integration, combining a fast 8051 CPU with extensive analog and digital peripherals on a single chip. The family supports in-system programming, allowing for field upgrades and flexible manufacturing processes.

Replacement Considerations

Consult the official product selection guide for direct functional equivalents within the C8051F80x-83x family. Verify pinout compatibility and peripheral availability when considering alternative part numbers from the same series.