C8051F714-GMR

Overview

The C8051F714-GMR is an 8-bit mixed-signal ISP Flash MCU from the C8051F70x/71x family, manufactured by Silicon Labs. It features a high-speed pipelined CIP-51 core operating at up to 25 MIPS with a 25 MHz clock. The device integrates 16 kB of in-system programmable Flash memory, 512 bytes of internal data RAM, and 32 bytes of data EEPROM. Key analog peripherals include a 10-bit ADC supporting up to 500 ksps, a capacitance-to-digital converter with up to 38 input channels, and an analog comparator. Digital interfaces encompass UART, SMBus, and SPI. It operates on a supply voltage of 1.8 V to 3.6 V within a temperature range of –40 °C to +85 °C.

Feature Summary

• Integrates a capacitance-to-digital converter supporting buttons, sliders, wheels, proximity sensing, and touch screens with auto-scan capabilities.
• Features a high-speed 8051-compatible core executing 70% of instructions in one or two system clocks for efficient processing.
• Includes on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Provides flexible clock sources including a precision internal oscillator and support for crystal-less UART operation.

Applications

• Capacitive touch sensing interfaces
• Portable battery-powered instrumentation
• Industrial control systems requiring mixed-signal processing

Procurement Notes

Verify component status as this series is marked Not Recommended for New Designs (NRND). Confirm package type matches design requirements, specifically QFN variants for this suffix. Ensure development tools are compatible with the C2 interface. Review datasheet revision history for any errata affecting specific silicon revisions before finalizing procurement.

Selection Notes

Select this MCU for applications requiring integrated capacitive sensing alongside standard analog conversion. Evaluate pin count and I/O availability against the specific peripheral configuration of the F714 variant. Consider power consumption profiles across different clock modes. Verify that the 1.8 V to 3.6 V supply range aligns with the target system's power architecture.

Part Context

This component belongs to the C8051F70x/71x family of mixed-signal microcontrollers. These devices are designed for cost-sensitive, space-constrained applications demanding high integration. The family shares a common core and peripheral set, differentiated primarily by memory sizes and available I/O pins. The GMR suffix indicates a tape-and-reel packaging format suitable for automated surface-mount assembly.

Replacement Considerations

Public confirmed substitute part numbers: None identified.