C8051F819-GM

Overview

The C8051F819-GM 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 16 kB of in-system programmable Flash memory and 512 bytes of internal data RAM. Integrated peripherals include a 10-bit ADC, a comparator, and a capacitance-to-digital converter. Communication interfaces consist of an enhanced UART, SMBus, and SPI. The unit operates on a supply voltage ranging from 1.8 V to 3.6 V within a temperature range of –40 °C to +85 °C.

Feature Summary

• Integrated capacitance-to-digital converter supporting buttons, sliders, wheels, and capacitive proximity sensing with auto-scan capabilities.
• On-chip debug circuitry enabling full speed, non-intrusive in-system debug without requiring external emulation hardware.
• Pipelined instruction architecture that executes a majority of instructions in one or two system clocks for efficient processing.
• Programmable internal high-frequency oscillator supporting crystal-less UART operation and on-the-fly clock source switching.

Applications

• Capacitive touch interface designs
• Low-power embedded control systems
• Industrial sensor monitoring

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package integrity upon receipt. Review the official datasheet for absolute maximum ratings and electrical characteristics before integration. Ensure design compliance with RoHS directives. Check for specific manufacturing lot codes if traceability is required for your application.

Selection Notes

Select this MCU when a compact solution with integrated capacitive sensing and analog peripherals is needed. The QFN-20 package suits space-constrained layouts. Consider the 1.8 V to 3.6 V operating range for battery-powered applications. Evaluate the 16 kB Flash capacity against code size requirements. Verify peripheral availability matches the specific functional needs of the target design.

Part Context

This component belongs to the C8051F80x-83x mixed-signal ISP Flash MCU family. The family shares a common architectural foundation but varies in memory sizes and peripheral configurations. The C8051F819 variant specifically provides 16 kB of Flash and 512 bytes of RAM. It utilizes the CIP-51 core and supports standard 8051 instruction sets while offering enhanced digital and analog integration.

Replacement Considerations

Consult the manufacturer's product selection guide for direct substitutes within the C8051F80x-83x series. Verify pin compatibility and memory specifications when considering alternative part numbers. Cross-reference peripheral counts to ensure functional equivalence. Note that this family is marked as not recommended for new designs; evaluate newer generations for long-term projects.