C8051F064-GQR

Overview

The C8051F064-GQR is an 8-bit microcontroller from the Silicon Labs C8051F06x family, featuring a high-speed 8051 core with up to 25 MIPS throughput at a 25 MHz clock. It includes 64 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. Key analog peripherals consist of two 16-bit SAR ADCs with programmable throughput up to 1 Msps and direct memory access. The device provides 59 general-purpose I/O pins, supports external memory interfaces, and operates within a supply voltage range of 2.7 V to 3.6 V across a temperature range of -40 °C to +85 °C.

Feature Summary

• Integrated dual 16-bit SAR ADCs with direct memory access for high-speed data acquisition without software overhead.
• On-chip JTAG debug circuitry enabling full-speed, non-intrusive in-circuit debugging with breakpoints and watchpoints.
• Pipelined instruction architecture executing 70% of the instruction set in one or two system clocks for improved throughput.
• Flexible digital communication interfaces including SMBus, SPI, and two concurrent UART ports.

Applications

• High-precision data acquisition systems requiring simultaneous multi-channel sampling
• Industrial control applications utilizing CAN bus or serial communication protocols
• Embedded systems needing on-chip debugging capabilities during development

Procurement Notes

Verify component authenticity through authorized distributors or official Silicon Labs channels. Confirm package integrity and pin alignment against TQFP-100 specifications. Check manufacturing date codes and lot numbers for traceability. Ensure storage conditions comply with moisture sensitivity level requirements prior to soldering. Validate that the specific revision matches design documentation as this part is not recommended for new designs.

Selection Notes

Select this component when existing designs require the specific peripheral mix of dual 16-bit ADCs and 59 I/O pins within the C8051F06x family. Consider compatibility with legacy 8051 codebases and established toolchains. Evaluate if the discontinued status aligns with long-term maintenance strategies. Compare against newer Silicon Labs alternatives if future production scalability is required.

Part Context

The C8051F064-GQR belongs to the C8051F06x series of mixed-signal microcontrollers. This family integrates a fast 8051 core with extensive analog and digital peripherals on a single chip. The GQR suffix indicates a tape-and-reel packaging format suitable for automated surface-mount assembly processes.

Replacement Considerations

This product line is marked as Not Recommended for New Designs. Consult Silicon Labs for current replacement recommendations or migration paths to supported microcontroller families.

FAQ

Does the C8051F064 support differential ADC operation?

Yes, the integrated 16-bit SAR ADCs can operate as either two single-ended converters or one differential converter.

What is the maximum throughput of the 16-bit ADCs?

The 16-bit SAR ADCs have a programmable throughput of up to 1 Msps.