C8051F043-GQR

Overview

The C8051F043-GQR is an 8-bit microcontroller from the Silicon Labs C8051F04x family, featuring a high-speed pipelined 8051 core operating at up to 25 MHz. It integrates 64 kB of in-system programmable Flash and 4352 bytes of internal data RAM. The device includes a 10-bit SAR ADC with 13 external inputs, two 12-bit DACs, three analog comparators, and a precision voltage reference. Digital peripherals comprise a Bosch CAN controller, hardware SMBus, SPI, and dual UARTs. It operates on a 2.7 V to 3.6 V supply within a –40 °C to +85 °C temperature range.

Feature Summary

• Integrated Bosch CAN 2.0B controller for robust serial communication
• Dual 12-bit digital-to-analog converters synchronized with timers
• On-chip JTAG debug circuitry supporting full-speed non-intrusive debugging
• Programmable crossbar decoder for flexible digital I/O pin assignment

Applications

• Industrial control systems requiring CAN bus connectivity
• Data acquisition systems utilizing integrated analog peripherals
• Embedded applications needing in-circuit debugging capabilities
• Sensor interface modules with precise voltage generation needs

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and moisture sensitivity level handling procedures prior to assembly. Review the latest datasheet revision for any updates to electrical characteristics or pin configurations. Ensure design compliance with RoHS directives if applicable to your region.

Selection Notes

Select this component when a fully static 8051 architecture with integrated CAN and high-resolution analog peripherals is required. Consider the 100-pin TQFP package for maximum I/O availability. Evaluate power consumption requirements against available sleep modes. Verify that the 2.7 V to 3.6 V supply range aligns with system voltage rails.

Part Context

This part belongs to the C8051F04x series of mixed-signal microcontrollers. The family shares a common CIP-51 core and peripheral set, differing primarily in memory size and specific analog features. The GQR suffix indicates a tape-and-reel packaging format suitable for automated surface-mount assembly processes.

Replacement Considerations

Consult official documentation for direct substitutes within the C8051F04x family. Verify pin compatibility and peripheral equivalence before transitioning designs. Note that newer generations may offer enhanced performance but require software adaptation.