C8051F567-IQ

Overview

The C8051F567-IQ is an automotive-qualified, mixed-signal ISP Flash MCU from the C8051F56x family. It features a high-speed 8051 core with up to 50 MIPS throughput at a 50 MHz clock frequency. The device includes 32 kB of in-system programmable Flash memory and 2304 bytes of internal data RAM (256 + 2048 XRAM). Key analog peripherals consist of a 12-bit ADC supporting up to 200 ksps and two comparators. Digital interfaces include CAN 2.0, LIN 2.1, UART, SMBus, and SPI. It operates on a supply voltage of 1.8 to 5.25 V and is housed in a 32-pin QFP/QFN package.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for operation in harsh environments.
• Integrated CAN 2.0 and LIN 2.1 controllers that operate without requiring external crystals.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without additional emulators.
• High-performance pipelined 8051 core capable of executing 70% of instructions in one or two system clocks.

Applications

• Automotive body control modules
• Industrial motor control systems
• Embedded communication gateways

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or certified partners. Confirm the specific suffix matches the required package variant. Check for current production status as this family may be subject to obsolescence notices. Ensure environmental compliance documentation aligns with project requirements.

Selection Notes

Select this model when automotive reliability and integrated CAN/LIN connectivity are required. The 32 kB Flash and 2304 bytes RAM support complex firmware logic. Verify pin compatibility with existing designs if migrating from other C8051F5xx variants. Consider power consumption profiles against application duty cycles.

Part Context

This part belongs to the C8051F55x/56x/57x family of mixed-signal MCUs. These devices are designed for applications demanding high integration and performance in small form factors. The family shares common architectural features including the CIP-51 core and extensive peripheral sets.

Replacement Considerations

C8051F568-IQ

FAQ

Does the C8051F567 require an external crystal for CAN communication?

No, the device integrates an internal 24 MHz oscillator with ±0.5% accuracy specifically suitable for CAN and master LIN operation without external crystals.

What is the maximum sampling rate of the ADC?

The 12-bit ADC supports a maximum sampling rate of up to 200 ksps.