C8051F819-GU

Overview

The C8051F819-GU 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 a 25 MHz clock frequency. 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 with up to 500 ksps sampling rate, a capacitance-to-digital converter for capacitive sensing, and digital interfaces such as UART, SMBus (I2C compatible), and SPI. It operates on 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 supporting buttons, sliders, wheels, and proximity sensing with fast conversion times.

Applications

• Capacitive touch sensing applications
• Mixed-signal embedded control systems
• Data acquisition systems requiring analog-to-digital conversion

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notices, as this series may be marked not recommended for new designs. Ensure proper handling for moisture-sensitive devices during storage and assembly processes.

Selection Notes

Select this model when specific pin counts and peripheral combinations of the C8051F8xx family are required. Compare against other members of the C8051F80x-83x series to match exact Flash size, I/O count, and analog peripheral availability. Verify package compatibility with existing PCB footprints before finalizing the design.

Part Context

This component belongs to the C8051F80x-83x mixed-signal MCU family by Silicon Labs. These devices combine a pipelined 8051 core with extensive on-chip analog and digital peripherals. The family is designed for high-performance embedded applications requiring precise signal processing and connectivity.

Replacement Considerations

Consult the official product selection guide within the datasheet for alternative part numbers within the C8051F80x-83x family that offer different memory sizes or peripheral configurations while maintaining pin compatibility.