C8051F565-IQ

Overview

The C8051F565-IQ is an 8-bit mixed-signal microcontroller from the Silicon Labs C8051F56x family, featuring a high-speed pipelined 8051 core operating at up to 50 MHz. It integrates 16 kB of in-system programmable Flash memory and 2304 bytes of internal data RAM (256 + 2048 XRAM). The device includes a 12-bit ADC with up to 200 ksps throughput and two comparators. Digital peripherals include CAN 2.0, LIN 2.1, UART, SMBus, SPI, four 16-bit timers, and a PCA with PWM. It supports a supply voltage range of 1.8 V to 5.25 V and operates within a temperature range of –40 °C to +125 °C.

Feature Summary

• Integrated CAN 2.0 and LIN 2.1 controllers that operate without requiring an external crystal.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without additional emulators.
• High-speed 8051 core with pipelined architecture executing most instructions in one or two system clocks.
• Automotive qualified design compliant with AEC-Q100 standards for extended temperature operation.

Applications

• Industrial control systems requiring robust communication interfaces
• Automotive embedded applications meeting AEC-Q100 requirements
• Data acquisition systems utilizing integrated analog peripherals

Procurement Notes

Verify component authenticity through authorized distributors as this part is marked Not Recommended for New Designs. Confirm package type matches the specific suffix requirements for your PCB layout. Check current lifecycle status and lead times due to potential obsolescence. Ensure all electrical specifications align with your system's voltage and temperature constraints before finalizing procurement.

Selection Notes

Select this model when a cost-effective 8-bit solution with integrated CAN and LIN capabilities is required. Consider the 16 kB Flash size for application code storage needs. Evaluate the 1.8 V to 5.25 V supply range against your power budget. Verify that the 32-pin QFP/QFN package fits your board space constraints compared to other pin counts in the F56x family.

Part Context

This component belongs to the C8051F55x/56x/57x Mixed Signal ISP Flash MCU Family by Silicon Laboratories. These devices are highly integrated System-on-Chip solutions combining a microcontroller core with extensive analog and digital peripherals. The family targets applications needing mixed-signal processing with flexible connectivity options.

Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the C8051F56x series. Verify memory sizes and peripheral availability when selecting substitutes. Note that newer designs should consider modern equivalents as this family is not recommended for new designs.

FAQ

Does the C8051F565-IQ require an external crystal for CAN and LIN operation?

No, the device features internal clock sources specifically calibrated for CAN and master LIN operation, eliminating the need for an external crystal.

What is the maximum throughput of the integrated ADC?

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