C8051F717-GM

Overview

The C8051F717-GM is a mixed-signal ISP Flash microcontroller from Silicon Labs, featuring an 8051 core with pipelined architecture executing up to 25 MIPS at a 24.5 MHz clock frequency. It integrates 16 kB of in-system programmable Flash memory and 512 bytes of internal data RAM. The device includes a capacitance-to-digital converter supporting up to 38 input channels for touch sensing applications, alongside a 10-bit ADC operating at up to 500 ksps. It operates on a supply voltage range of 1.8 V to 3.6 V and supports industrial temperature ranges from -40 °C to +85 °C.

Feature Summary

• Integrated capacitance-to-digital converter enables accurate capacitive proximity and touch screen sensing with auto-scan capabilities.
• On-chip debug circuitry facilitates full-speed, non-intrusive in-system debugging without requiring external emulation hardware.
• High-speed 8051 CPU utilizes a pipelined instruction architecture to achieve efficient throughput with most instructions completing in one or two system clocks.

Applications

• Capacitive touch sensing interfaces including buttons, sliders, and wheels
• Industrial control systems requiring robust analog signal processing
• Portable instruments utilizing low-power operation modes

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm the specific package variant matches design requirements. Review datasheet revision history for any functional updates. Ensure environmental compliance documentation aligns with target market regulations. Validate pinout compatibility during PCB layout finalization.

Selection Notes

Evaluate the integration of the capacitance-to-digital converter against discrete sensor solutions to determine cost and space efficiency. Assess the 10-bit ADC resolution and sampling rate relative to signal fidelity requirements. Consider the available I/O count and peripheral set for system connectivity needs. Verify power consumption characteristics across different operational modes.

Part Context

This component belongs to the C8051F70x/71x family of mixed-signal microcontrollers designed for high-performance embedded applications. The series emphasizes integrated analog peripherals and capacitive sensing capabilities within a compact form factor. It targets designs requiring precise measurement and user interface interaction.

Replacement Considerations

Consult official Silicon Labs documentation for qualified substitute part numbers within the same product family. Verify pin compatibility and peripheral equivalence before implementation.