C8051F064R

Overview

The C8051F064R is an analog-intensive mixed-signal microcontroller from Silicon Labs, featuring a high-speed 8051 core operating at up to 25 MHz. It integrates two separate 16-bit SAR ADCs capable of 1 Msps throughput and a 10-bit SAR ADC with 200 ksps speed. The device includes 64 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. Key peripherals include two 12-bit DACs, three analog comparators, a precision voltage reference, and a temperature sensor. Digital interfaces consist of hardware SMBus, SPI, and dual UART ports alongside a programmable counter array.

Feature Summary

• Features two independent 16-bit SAR ADCs with direct memory access for high-speed data acquisition without software overhead.
• Integrates on-chip JTAG debug circuitry enabling full-speed, non-intrusive in-circuit debugging with breakpoints and watchpoints.
• Includes a pipelined instruction architecture that executes the majority of the instruction set in one or two system clocks.
• Provides flexible digital I/O configuration through a programmable digital crossbar allowing peripheral pin assignment.

Applications

• High-resolution data acquisition systems
• Precision measurement instruments
• Industrial process control loops
• Audio signal processing applications

Procurement Notes

Verify the specific package variant and ordering suffix against the manufacturer's current datasheet revision. Confirm RoHS compliance status and ensure the selected component matches the required temperature range specifications for your application environment before finalizing procurement orders.

Selection Notes

Select this model when high-resolution analog conversion is critical, specifically requiring dual 16-bit ADCs. Ensure the design utilizes the available 59 general-purpose I/O pins if external memory interface is not needed. Verify power supply requirements align with the specified 2.7V to 3.6V operating range for optimal performance.

Part Context

This component belongs to the C8051F06x family of highly integrated mixed-signal microcontrollers. The family shares a common CIP-51 core and peripheral set, differentiated primarily by memory sizes and specific analog capabilities. It represents a System-on-a-Chip solution designed to reduce component count in embedded designs.

Replacement Considerations

Compatible substitutes within the same family include C8051F060, C8051F062, and C8051F066. These parts share identical pinouts and core functionality but may differ in Flash memory capacity or external memory interface availability. Verify peripheral configurations match before substitution.

FAQ

Can the 16-bit ADCs operate simultaneously?

Yes, the device features two separate 16-bit SAR ADCs that can operate independently as single-ended converters or together as a differential converter.

Is in-system programming supported for the Flash memory?

Yes, the 64 kB Flash memory supports in-system programming in 512-byte sectors, allowing for field upgrades and non-volatile data storage.