C8051F819-GUR

Overview

The C8051F819-GUR is an 8-bit mixed-signal microcontroller from the Silicon Labs C8051F80x-83x family, featuring a high-speed pipelined 8051 core operating at up to 25 MHz. It integrates 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 throughput, a Capacitance to Digital Converter supporting up to 16 channels for touch sensing, and a comparator. The device operates on a supply voltage range of 1.8 V to 3.6 V and supports digital interfaces such as UART, SMBus, and SPI.

Feature Summary

• Integrated Capacitance to Digital Converter enables capacitive proximity sensing and touch detection with auto-scan capabilities.
• High-speed 8051 core executes most instructions in one or two system clocks for efficient processing.
• On-chip debug circuitry allows full-speed, non-intrusive in-system debugging without external emulators.
• Flexible clock sources include an internal oscillator and support for external crystals or RC circuits.

Applications

• Capacitive touch interface controllers
• Portable battery-powered instrumentation
• Industrial sensor nodes
• Consumer electronics requiring low-power MCU solutions

Procurement Notes

Verify component authenticity through authorized distributors. Confirm package type matches design requirements. Check RoHS compliance status. Ensure EOL status is acceptable for current projects. Validate datasheet revision against manufacturing specifications.

Selection Notes

Compare memory sizes across the C8051F80x-83x family to match application needs. Evaluate peripheral availability including ADC resolution and channel count. Consider package options like QSOP-24 or QFN-20 for space constraints. Review power management modes for efficiency requirements.

Part Context

This part belongs to the C8051F80x-83x series of mixed-signal ISP Flash MCUs. These devices are designed for applications requiring analog-to-digital conversion and capacitive sensing within a compact form factor. The family shares common architectural features but varies in memory size and specific peripheral configurations.

Replacement Considerations

Consult the manufacturer's product selection guide for direct substitutes within the C8051F80x-83x family. Verify pin compatibility and peripheral equivalence before substitution. Note that this series is marked Not Recommended for New Designs; consider newer alternatives for long-term projects.