C8051F547-IMR

Overview

The C8051F547-IMR is an 8-bit mixed-signal microcontroller from the C8051F54x family, manufactured by Silicon Labs. It features a high-speed CIP-51 core operating at up to 50 MIPS with a 50 MHz clock. The device includes 16 kB of in-system programmable Flash memory and 1280 bytes of internal data RAM. Key peripherals include a 12-bit ADC supporting up to 200 ksps, two comparators, a LIN 2.1 controller, UART, SMBus, SPI, and four general-purpose timers. It operates on a supply voltage of 1.8 V to 5.25 V and is housed in a 24-pin QFN package.

Feature Summary

• Integrated 12-bit analog-to-digital converter with up to 200 ksps sampling rate and built-in temperature sensor
• Hardware-enhanced serial communication interfaces including LIN 2.1 controller, UART, SMBus, and SPI
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators
• Automotive qualified design compliant with AEC-Q100 standards for industrial and automotive environments

Applications

• Automotive body control modules requiring LIN bus connectivity
• Industrial monitoring systems utilizing high-resolution analog signal acquisition
• Embedded controllers needing robust in-circuit programming capabilities
• Temperature sensing applications leveraging integrated thermal sensors

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package type. Check for current lifecycle status as this series may be marked not recommended for new designs. Ensure compliance with RoHS directives and relevant automotive qualification standards before integration into production schedules.

Selection Notes

Select this model when a compact 24-pin form factor is required alongside substantial analog performance. It is suitable for designs needing LIN 2.1 support without external transceivers. Consider the 16 kB Flash capacity against application code size requirements. Evaluate the 1.8 V to 5.25 V operating range against system power constraints and noise immunity needs.

Part Context

This component belongs to the C8051F54x mixed-signal ISP Flash MCU family. It shares architectural similarities with other members like the C8051F540/1/4/5 but differs in package configuration. The family emphasizes high integration within small footprints, targeting cost-sensitive yet performance-demanding embedded applications across industrial and automotive sectors.

Replacement Considerations

C8051F543-IMR