C8051F123-GQR

Overview

The C8051F123-GQR is an 8-bit microcontroller from the Silicon Labs C8051F12x/13x family, featuring a pipelined CIP-51 core with 100 MIPS throughput. It includes 64 kB of in-system programmable Flash memory and 8448 bytes of internal data RAM. The device integrates a 10-bit SAR ADC with up to 8 external inputs and a programmable gain amplifier. Digital peripherals include hardware SMBus, SPI, two UARTs, five 16-bit timers, and a Programmable Counter Array. It operates within a voltage range of 3.0–3.6 V at maximum speed and supports -40°C to +85°C industrial temperatures.

Feature Summary

• Features a high-speed pipelined CIP-51 core executing 70% of instructions in one or two system clocks
• Integrates a 10-bit SAR ADC with programmable gain amplifier and windowed interrupt generator
• Includes on-chip JTAG debug circuitry for full-speed non-intrusive in-circuit debugging
• Provides concurrent hardware support for SMBus, SPI, and dual UART serial interfaces

Applications

• Industrial control systems requiring mixed-signal processing
• Power electronics monitoring and management
• Communication equipment utilizing multiple serial protocols

Procurement Notes

Verify component authenticity through authorized distributors as this part is designated Not Recommended for New Designs. Confirm package integrity upon receipt, specifically checking for TQFP pin alignment and solder joint quality. Ensure ESD precautions are strictly followed during handling. Validate that the specific revision matches design requirements due to potential legacy status variations.

Selection Notes

Select this component when a fully static 8051 architecture with integrated analog peripherals is required. It is suitable for designs needing simultaneous digital communication and analog signal acquisition without external components. Consider the 100 MIPS performance and banked Flash capabilities for complex firmware execution. Evaluate power consumption constraints against the specified 3.0–3.6 V operating range.

Part Context

This MCU belongs to the C8051F12x/13x series of highly integrated mixed-signal System-on-Chip devices. The family combines a fast 8051-compatible processor with extensive on-chip memory and analog/digital peripherals. The C8051F123 variant specifically offers 64 kB Flash and a 10-bit ADC, distinguishing it from variants with 12-bit ADCs or larger memory capacities within the same package options.

Replacement Considerations

Public confirmed substitute part numbers: None.