C8051F700-GQR

Overview

The C8051F700-GQR is a mixed-signal ISP Flash MCU from the C8051F70x/71x family, manufactured by Silicon Labs. It features a high-speed 8051 µC core with up to 25 MIPS throughput at a 25 MHz clock. The device includes 16 kB of in-system programmable Flash memory, 512 bytes of internal data RAM, and up to 32 bytes of data EEPROM. Key analog peripherals include a 10-bit ADC supporting up to 500 ksps, a Capacitance to Digital Converter (CS0), and an analog comparator. It operates on a supply voltage of 1.8 V to 3.6 V and is available in a 64-pin TQFP package.

Feature Summary

• Integrates a high-speed pipelined 8051 core capable of executing 70% of instructions in one or two system clocks.
• Includes a Capacitance to Digital Converter for sensing buttons, sliders, wheels, and touch screens with auto-scan capabilities.
• Features a 10-bit Analog to Digital Converter with up to 500 ksps sampling rate and multiple input channels.
• Provides non-intrusive on-chip debug circuitry allowing full-speed in-system debugging without external emulators.

Applications

• Capacitive proximity and touch screen sensing systems
• Data acquisition applications requiring high-speed analog-to-digital conversion
• Industrial control systems utilizing mixed-signal processing
• Portable instruments and battery-powered devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific revision status, as documentation indicates this family is not recommended for new designs. Ensure compatibility with existing PCB footprints for the 64-pin TQFP package. Check for any recent product change notices regarding manufacturing sites or material composition updates before finalizing procurement orders.

Selection Notes

Select this component when a fully integrated mixed-signal solution with capacitive sensing is required. The C8051F700-GQR offers a balance of processing speed and analog precision within a compact 64-pin package. Consider the 1.8 V to 3.6 V operating range for low-power applications. Evaluate the available I/O count and peripheral set against system requirements to ensure sufficient resources for digital communication and control tasks.

Part Context

This microcontroller belongs to the C8051F70x/71x series, which are known for their high integration of analog and digital peripherals on a single chip. The C8051F700 variant specifically provides 16 kB of Flash memory. The GQR suffix denotes the 64-pin Thin Quad Flat Package (TQFP) with a specified thermal and electrical performance profile suitable for surface-mount assembly techniques.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified sources. Note that the datasheet explicitly states 'Not Recommended for New Designs' for the C8051F70x/71x family. Existing designs should verify long-term availability and lifecycle status through official Silicon Labs channels before considering alternative sourcing strategies.