C8051F023-GQR

Overview

The C8051F023-GQR is an 8-bit microcontroller from Silicon Labs featuring a high-speed CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 64 kB of in-system programmable FLASH and 4352 bytes of internal data RAM. The device includes a 10-bit SAR ADC, two 12-bit DACs, two analog comparators, and a precision voltage reference. Digital peripherals support SMBus, SPI, and dual UARTs. It operates within a supply voltage range of 2.7 V to 3.6 V and is available in a 64-pin TQFP package.

Feature Summary

• Integrates a fully 8051 compatible CIP-51 core with pipelined architecture for improved instruction execution speed.
• Includes on-chip JTAG debug circuitry enabling full-speed, non-intrusive in-circuit debugging without external emulation hardware.
• Features mixed-signal capabilities with a 10-bit SAR ADC, two 12-bit DACs, and two analog comparators.
• Provides comprehensive digital communication interfaces including SMBus, SPI, and two concurrent UART serial ports.

Applications

• In-system programming applications requiring direct FLASH updates via ISP.
• Embedded systems utilizing onboard JTAG for development and boundary scan testing.
• Data acquisition systems leveraging the integrated 10-bit ADC and programmable gain amplifiers.
• Industrial control devices using the built-in voltage monitor and watchdog timer for system reliability.

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package type and temperature rating. Check for end-of-life status as this family may be discontinued. Ensure compatibility with existing PCB footprints for the 64-pin TQFP configuration. Review datasheet revisions for any errata affecting peripheral functionality.

Selection Notes

Select this model when a complete single-chip solution with mixed-signal peripherals is required. It is suitable for designs needing onboard debugging to reduce development time. Consider the 64 kB FLASH capacity for code storage needs. Evaluate the 2.7 V to 3.6 V operating range against power supply constraints. Compare pin counts and I/O configurations against other variants in the C8051F02x series.

Part Context

This component belongs to the C8051F02x series of 8K ISP FLASH MCUs from Silicon Labs. The series shares a common CIP-51 core and peripheral set, differentiated by memory size and ADC resolution. The GQR suffix denotes the 64-pin TQFP package variant. This family represents an earlier generation of Silicon Labs MCU products.

Replacement Considerations

C8051F023-GQ

FAQ

What is the maximum throughput of the CIP-51 core?

The core executes up to 25 MIPS with a 25 MHz clock, executing 70% of the instruction set in 1 or 2 system clocks.

Does the C8051F023 include an external memory interface?

Yes, it features an external 64k Byte Data Memory Interface that can be programmed in multiplexed or non-multiplexed modes.

How many analog inputs are supported by the ADC?

The 10-bit SAR ADC supports up to 8 external inputs, which can be configured as single-ended or differential.