C8051F012-GQ

Overview

The C8051F012-GQ is a mixed-signal microcontroller from the Silicon Labs C8051F0xx family, featuring an 8051-compatible CPU core with up to 25 MIPS throughput at a maximum clock frequency of 25 MHz. It integrates 32 kB of ISP Flash memory and 256 bytes of internal data RAM. The device includes a 10-bit SAR ADC with programmable gain amplifier, two 12-bit DACs, two analog comparators, and a precision voltage reference. Digital peripherals include hardware SMBus, SPI, UART, four general-purpose timers, and a Programmable Counter Array. It operates within a supply voltage range of 2.7 V to 3.6 V and supports temperatures from -40°C to +85°C in a 32-pin LQFP package.

Feature Summary

• Integrated on-chip JTAG debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulation hardware.
• High-speed pipelined 8051 architecture executing 70% of instructions in one or two system clocks for efficient processing.
• Mixed-signal capabilities combining a 10-bit ADC with programmable amplifiers and dual 12-bit voltage-mode DACs.

Applications

• Battery-powered instrumentation systems requiring low power consumption and mixed-signal processing.
• Industrial control applications utilizing hardware serial interfaces and precise analog measurement.
• Embedded sensor interface designs leveraging integrated temperature sensors and comparators.

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the specific revision matches design requirements, as this part is marked Not Recommended for New Designs. Ensure compatibility with existing firmware and hardware layouts before procurement. Check for RoHS compliance status relevant to your region's regulations.

Selection Notes

Select this component when a fully integrated mixed-signal solution with on-chip debug is required for cost-sensitive 8-bit applications. Consider the limited RAM size for complex algorithm implementation. Evaluate the 10-bit ADC resolution against application accuracy needs compared to higher-resolution alternatives in the family.

Part Context

This microcontroller belongs to the C8051F0xx series, which provides high integration levels by combining digital and analog peripherals on a single chip. The family utilizes a Harvard architecture for simultaneous instruction and data access. Development typically involves Silicon Labs' 8-bit Microcontroller Studio software suite for programming and debugging tasks.

Replacement Considerations

Silicon Labs recommends alternative devices for new designs due to the EOL status. Verify pinout and peripheral compatibility if substituting with newer C8051F variants or EFM8 families.

FAQ

Does the C8051F012-GQ support external memory expansion?

No, the C8051F012 variant does not include an External Memory Interface (EMIF). Only the F005/06/07 and F015/16/17 sub-variants within this family support external RAM expansion.

What is the maximum sampling rate of the ADC?

The 10-bit SAR ADC supports a programmable throughput of up to 100 ksps.