C8051F064

Overview

The C8051F064 is a high-performance mixed-signal System-on-Chip microcontroller from Silicon Labs, featuring an 8051-compatible core operating at up to 25 MIPS. It integrates two 16-bit SAR ADCs with programmable throughput up to 1 Msps and direct memory access. The device includes 64 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. Digital peripherals consist of 59 general-purpose I/O pins, hardware SMBus, SPI, dual UARTs, and a programmable counter array. It operates within a supply voltage range of 2.7 V to 3.6 V and supports industrial temperature ranges.

Feature Summary

• High-speed 8051 core with pipelined architecture delivering up to 25 MIPS throughput
• Dual 16-bit SAR ADCs with DMA support for high-speed data acquisition without software overhead
• Integrated on-chip JTAG debug circuitry enabling full-speed non-intrusive in-circuit debugging
• Flexible digital crossbar allowing configurable pin assignments for multiple serial interfaces

Applications

• High-speed data acquisition systems requiring precise analog-to-digital conversion
• Industrial control applications utilizing CAN or serial communication protocols
• Portable instruments and battery-powered devices benefiting from low-power modes
• Embedded systems requiring integrated mixed-signal processing capabilities

Procurement Notes

Verify the specific package variant (TQFP-100 or TQFP-64) required for your PCB layout before ordering. Confirm that the design supports the specified 2.7 V to 3.6 V supply voltage range. Ensure development tools are compatible with the CIP-51 core architecture. Check for any end-of-life notices or last-time buy notifications associated with this component family.

Selection Notes

Select the C8051F064 when high-resolution analog input processing is critical alongside standard microcontroller functions. The inclusion of dual 16-bit ADCs distinguishes it from lower-end variants lacking such precision. Consider the external memory interface availability if larger data storage is needed beyond the onboard RAM. Evaluate the pin count requirements against the available 59 GPIO options in the 100-pin package.

Part Context

This component belongs to the C8051F06x series of mixed-signal microcontrollers designed for demanding embedded applications. The series emphasizes high integration by combining a fast 8051 processor with advanced analog peripherals on a single die. This approach reduces system complexity and bill of materials by eliminating the need for external ADCs or complex signal conditioning circuits.

Replacement Considerations

Consult official Silicon Labs documentation for current lifecycle status. Verify compatibility with existing firmware due to potential register differences in newer generations.