C8051F412-GQR

Overview

The C8051F412-GQR is an 8-bit microcontroller from the Silicon Labs C8051F41x family, featuring a high-speed 8051 core operating at up to 50 MHz. It integrates 16 kB of in-system programmable Flash memory and 2304 bytes of internal data RAM. The device includes a 12-bit ADC with up to 24 external inputs, two 12-bit current-mode DACs, and two comparators. It supports a supply voltage range of 2.0 V to 5.25 V and operates within a temperature range of –40 °C to +85 °C. The component is housed in a 32-pin LQFP package.

Feature Summary

• Integrates a 12-bit analog-to-digital converter with programmable throughput and built-in temperature sensing capabilities.
• Includes dual 12-bit current-mode digital-to-analog converters for precise signal generation.
• Features on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Incorporates smaRTClock technology providing battery-backed RAM and real-time clock functionality.

Applications

• Voice recorder circuits utilizing hardware accumulation and burst mode features
• Mixed-signal embedded systems requiring standalone system-on-a-chip solutions
• Applications needing low-power suspend modes with wake-up capability

Procurement Notes

Verify the specific ordering suffix GQR corresponds to the 32-pin LQFP package configuration. Confirm that the 16 kB Flash variant matches the design requirements, as other capacities exist in this series. Check for the Not Recommended for New Designs status when planning long-term production. Ensure compatibility with existing development tools for the CIP-51 core architecture.

Selection Notes

Select this component for designs prioritizing mixed-signal integration within a small form factor. The 5.25 V tolerant I/O pins simplify interfacing with higher voltage peripherals. Evaluate the 12-bit resolution against application noise requirements. Consider the available digital peripherals like SMBus and SPI for communication needs. Review power consumption profiles across different operating modes.

Part Context

This part belongs to the C8051F41x small form factor microcontroller family, which is characterized by high analog intensity. The family shares common specifications such as the 50 MIPS CPU throughput and similar peripheral sets. Variations within the series primarily differ in Flash capacity and pin count configurations.

Replacement Considerations

The datasheet explicitly marks the C8051F41x series as Not Recommended for New Designs. Designers should evaluate newer Silicon Labs MCU families for future projects. No direct public substitute part numbers are confirmed in the provided documentation.