C8051F567-IQR

Overview

The C8051F567-IQR is an automotive-qualified mixed-signal ISP Flash MCU from the C8051F55x/56x/57x family. It features a high-speed 8051 core with up to 50 MIPS throughput at 50 MHz, 32 kB of in-system programmable Flash memory, and 2304 bytes of internal data RAM. The device integrates a 12-bit ADC supporting up to 200 ksps sampling rate with up to 32 external single-ended inputs, two comparators, and a built-in temperature sensor. Digital peripherals include CAN 2.0 and LIN 2.1 controllers without requiring a crystal, alongside hardware-enhanced UART, SMBus, SPI, four 16-bit timers, and a PCA. It operates on a supply voltage of 1.8 V to 5.25 V within a temperature range of –40 °C to +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for operation in extreme temperatures.
• Integrated CAN 2.0 and LIN 2.1 controllers that function without an external crystal.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• High-performance pipelined 8051 core executing 70% of instructions in one or two system clocks.

Applications

• Automotive embedded systems
• Industrial control units
• LIN/CAN bus communication nodes

Procurement Notes

Verify the component status carefully as the datasheet explicitly marks the C8051F55x/56x/57x family as Not Recommended for New Designs. Confirm availability through authorized distributors and ensure the specific suffix matches the required package and temperature grade. Check for recommended alternative families before initiating procurement.

Selection Notes

Select this part when automotive reliability is required alongside integrated CAN/LIN capabilities without external crystals. Ensure the design accommodates the 32-pin QFN/QFP package constraints. Verify that the 32 kB Flash and 2304 bytes RAM meet application memory requirements. Consider the power consumption specifications, particularly typical operating current at maximum frequency.

Part Context

This microcontroller belongs to the Silicon Labs C8051F55x/56x/57x series of mixed-signal ISPs Flash MCUs. These devices are designed as standalone system-on-a-chip solutions featuring on-chip voltage regulators, power-on reset, and watchdog timers. The series emphasizes high integration and performance in small form factors suitable for space-constrained applications.

Replacement Considerations

Public confirmed substitute part numbers only; omit otherwise.