C8051F706-GQR

Overview

The C8051F706-GQR is a mixed-signal ISP Flash MCU from the Silicon Labs C8051F70x family, housed in a 48-pin QFN package. It features a high-speed 8051 core operating at up to 25 MHz with 25 MIPS throughput. The device integrates 16 kB of in-system programmable Flash memory, 512 bytes of internal data RAM, and 32 bytes of data EEPROM. Analog peripherals include a 10-bit ADC supporting up to 500 ksps, a Capacitance-to-Digital Converter, and an analog comparator. Digital interfaces comprise UART, SMBus, and SPI. Operating voltage ranges from 1.8 V to 3.6 V, with a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a pipelined 8051 microcontroller core capable of executing 70% of instructions in one or two system clocks for high throughput.
• Includes a Capacitance-to-Digital Converter supporting up to 38 input channels for touch sensing applications with fast conversion times.
• Features 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 supports switching between sources on-the-fly.

Applications

• Capacitive proximity and touch screen sensing systems
• Battery-powered portable devices requiring low voltage operation
• Industrial control systems utilizing mixed-signal monitoring
• Embedded controllers requiring in-system programming capabilities

Procurement Notes

Verify component status as this model is marked Not Recommended for New Designs. Confirm package type matches the 48-QFN specification. Ensure design reviews account for end-of-life implications if applicable. Cross-reference datasheet revisions for any electrical characteristic updates before finalizing procurement specifications.

Selection Notes

Select this component for designs requiring integrated capacitive sensing alongside standard mixed-signal processing. Evaluate the 1.8V to 3.6V supply range against system power constraints. Consider the 16 kB Flash capacity for code storage requirements. Verify that the 48-pin QFN footprint aligns with PCB layout constraints and thermal management needs.

Part Context

This part belongs to the C8051F70x/71x family of mixed-signal ISPs Flash MCUs. These devices combine a high-speed controller core with extensive analog and digital peripherals on a single chip. The family targets applications needing precise signal acquisition and control logic within a compact form factor.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

What is the maximum sampling rate of the ADC?

The 10-bit Analog to Digital Converter supports a maximum sampling rate of up to 500 ksps.

Does the C8051F706-GQR support in-circuit debugging?

Yes, it includes on-chip debug circuitry that facilitates full-speed, non-intrusive in-system debugging without requiring an emulator.

What is the operating voltage range?

The device operates within a supply voltage range of 1.8 V to 3.6 V.