C8051F066-GQR

Overview

The C8051F066-A-GQR is an 8-bit microcontroller from the Silicon Labs C8051F06x family, featuring a CIP-51 core operating at up to 25 MHz. It includes 32 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. The device integrates two 16-bit SAR ADCs with DMA support, three analog comparators, and a precision voltage reference. Communication interfaces include hardware SMBus, SPI, and dual UARTs. It provides 59 general-purpose I/O pins via a digital crossbar, operates within a 2.7 V to 3.6 V supply range, and supports -40 °C to +85 °C temperatures in a 100-pin TQFP package.

Feature Summary

• Features two 16-bit SAR ADCs with direct memory access for high-speed data acquisition without software overhead.
• Includes on-chip JTAG debug circuitry supporting breakpoints, single-stepping, and boundary scan capabilities.
• Integrates a pipelined CIP-51 core executing 70% of instructions in one or two system clocks.
• Provides flexible interrupt sources and multiple power-saving sleep and shutdown modes.

Applications

• Industrial control systems requiring precise analog signal processing
• Data acquisition systems utilizing high-resolution ADCs
• Embedded applications needing robust in-circuit debugging
• Sensor interface modules with multiple communication protocols

Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status as indicated in official documentation. Check for moisture sensitivity classification prior to storage and handling. Ensure packaging integrity matches reel specifications. Validate revision level against current datasheet requirements.

Selection Notes

Select this model when 32 kB Flash capacity suffices for application code. Choose over variants with larger memory if cost optimization is required. Verify pin count compatibility with 100-pin TQFP footprint. Ensure voltage supply constraints align with 2.7 V to 3.6 V operational limits.

Part Context

Part of the C8051F06x series offering mixed-signal capabilities. Shares core architecture with F060-F065 but differs in Flash size. Designed for applications balancing processing speed with analog precision. Part of Silicon Labs' established 8-bit MCU portfolio.

Replacement Considerations

Consult manufacturer notices regarding end-of-life status. Identify successor models within the C8051F06x family or newer generations. Verify pin-to-pin compatibility before substitution. Review updated feature sets and electrical characteristics.

FAQ

Does the C8051F066 include CAN controller functionality?

No, the C8051F066 does not include a Bosch CAN controller. This feature is available only in the C8051F060/1/2/3 variants within the same family.

What is the maximum throughput of the integrated ADCs?

The two 16-bit SAR ADCs support programmable throughput up to 1 Msps. They can operate as two single-ended converters or one differential converter.