C8051F712-GQR

Overview

The C8051F712-GQR is an 8-bit mixed-signal ISP Flash MCU from the Silicon Labs C8051F70x/71x family, housed in a 64-pin TQFP package. It features a high-speed 8051 core operating at up to 25 MIPS with a 25 MHz clock. The device includes 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, and an analog comparator. Digital interfaces encompass UART, SMBus, and SPI.

Feature Summary

• Integrated capacitance-to-digital converter supports touch sensing applications with auto-scan capabilities.
• On-chip debug circuitry enables full-speed, non-intrusive in-system debugging without external emulators.
• High-speed pipelined 8051 core executes 70% of instructions in one or two system clocks.
• Programmable internal oscillator provides precise timing for crystal-less UART operation.

Applications

• Capacitive proximity and touch screen sensing systems
• Portable devices requiring low-power mixed-signal processing
• Industrial control applications utilizing analog monitoring

Procurement Notes

Verify component authenticity through authorized distributors. Confirm package integrity upon receipt. Check datasheet revisions for updates. Ensure ESD precautions during handling. Validate pin compatibility for PCB integration.

Selection Notes

Evaluate memory requirements against the 16 kB Flash limit. Consider the 512-byte RAM constraint for complex algorithms. Assess analog input needs for the 10-bit ADC and capacitance sensor channels. Verify voltage supply range compatibility with the 1.8 V to 3.6 V specification.

Part Context

This component belongs to the C8051F70x/71x mixed-signal microcontroller family. It shares architectural similarities with other members like the C8051F700 series but offers specific peripheral configurations. The GQR suffix denotes the 64-pin TQFP package variant within this product line.

Replacement Considerations

Public confirmed substitute part numbers: C8051F712-GQ, C8051F712-GM.

FAQ

What is the maximum throughput of the CPU core?

The high-speed 8051 µC core delivers up to 25 MIPS throughput when operating at a 25 MHz clock frequency.

Does the device support crystal-less UART operation?

Yes, the integrated 24.5 MHz ±2% precision internal oscillator supports crystal-less UART operation.