C8051F012-GQR

Overview

The C8051F012-GQR is a mixed-signal microcontroller from the Silicon Labs C8051F0xx family, featuring an 8-bit CIP-51 CPU core with up to 25 MIPS throughput at a 25 MHz clock frequency. It integrates 32 KB of in-system programmable (ISP) Flash memory and 256 bytes of internal data RAM. The device includes a 10-bit SAR ADC with up to eight external inputs, two 12-bit DACs, and two analog comparators. Communication interfaces include hardware SMBus, SPI, and UART. It operates on a supply voltage of 2.7 V to 3.6 V within a temperature range of –40°C to +85°C.

Feature Summary

• Integrates a high-speed pipelined 8051-compatible CPU capable of executing 70% of instructions in one or two system clocks.
• Features a fully integrated JTAG debug circuitry for full-speed, non-intrusive in-system debugging without requiring external emulation chips.
• Includes a precision 10-bit successive approximation register (SAR) analog-to-digital converter with programmable gain amplifier and windowed interrupt generator.
• Provides simultaneous concurrent operation of hardware SMBus, SPI, and UART serial communication ports.

Applications

• Data acquisition systems utilizing the integrated multi-channel ADC and programmable amplifiers.
• Industrial control applications requiring precise analog signal generation via dual 12-bit DACs.
• Embedded systems needing robust in-system programming and real-time debugging capabilities.
• Battery-powered devices leveraging multiple power-saving sleep and shutdown modes.

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against the TQFP-32 specification. Review the latest datasheet revision for any electrical characteristic updates. Ensure compliance with RoHS directives if required by your assembly process. Validate that the specific suffix matches your board layout requirements.

Selection Notes

Select this model when a complete mixed-signal solution is required on a single chip. It is suitable for designs needing both digital processing and analog front-end capabilities. Consider the 256-byte RAM limit for complex algorithm implementation. Evaluate the 2.7V to 3.6V operating range against your system power rails. Check if the 10-bit ADC resolution meets your sensing accuracy requirements.

Part Context

This component belongs to the C8051F0xx series of mixed-signal microcontrollers. It shares architectural similarities with other members like the C8051F010 and C8051F011 but differs in memory size and package options. The series is characterized by its high integration level, combining standard 8051 peripherals with advanced analog blocks. Development tools such as 8-bit Microcontroller Studio support this family.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.

FAQ

Does the C8051F012-GQR require an external emulator for debugging?

No, it features on-chip JTAG debug circuitry that facilitates full-speed, non-intrusive in-system debugging without the need for external emulation chips or sockets.

What is the maximum execution speed of the CIP-51 core in this MCU?

The CIP-51 CPU core achieves up to 25 MIPS throughput when driven by a 25 MHz clock source.

Can the SMBus, SPI, and UART interfaces operate simultaneously?

Yes, the device supports the concurrent operation of hardware SMBus, SPI, and UART serial ports.