C8051F067

Overview

The C8051F067 is an 8-bit microcontroller from Silicon Labs featuring a high-speed CIP-51 core operating at up to 24.5 MHz with 25 MIPS throughput. It integrates 32 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. The device includes two 16-bit SAR ADCs supporting up to 1 Msps, three analog comparators, and a precision voltage reference. Digital peripherals consist of 24 general-purpose I/O pins, two UARTs, SMBus, SPI, five 16-bit timers, and a Programmable Counter Array. It operates on a 2.7 V to 3.6 V supply within a -40°C to +85°C temperature range.

Feature Summary

• High-performance pipelined 8051-compatible core delivering up to 25 MIPS execution speed
• Dual 16-bit SAR ADCs with direct memory access for high-speed data acquisition
• Integrated JTAG debug circuitry enabling non-intrusive in-circuit debugging
• Programmable digital crossbar architecture allowing flexible peripheral-to-pin mapping

Applications

• Data acquisition systems requiring high-resolution analog input
• Industrial control applications with multiple sensor interfaces
• Portable instrumentation utilizing low-power operation modes
• Embedded systems needing precise timing via PCA and timer arrays

Procurement Notes

Verify the specific package variant (TQFP) and ordering suffix against the manufacturer's current datasheet revision. Confirm that the 32 kB Flash configuration matches project requirements, as this distinguishes the C8051F067 from the 64 kB variants in the same family. Ensure development tools support the CIP-51 architecture for proper firmware compilation and debugging.

Selection Notes

Select the C8051F067 when dual 16-bit ADCs are required alongside a compact pin count compared to the 100-pin variants. This model provides 24 GPIOs, suitable for designs where external memory interface pins are unnecessary. It offers the same analog performance as larger packages but with reduced footprint constraints. Consider the C8051F060 series if CAN bus connectivity or external memory expansion is needed instead.

Part Context

This component belongs to the C8051F06x family of mixed-signal system-on-chip microcontrollers. These devices are designed to replace discrete logic and standard MCU solutions by integrating extensive analog and digital peripherals. The family shares a common instruction set and development environment, facilitating migration between different memory sizes and package options within the same product line.

Replacement Considerations

C8051F060, C8051F061, C8051F062, C8051F063, C8051F064, C8051F065, C8051F066.