C8051F501-IMR

Overview

The C8051F501-IMR is an 8-bit mixed-signal microcontroller from Silicon Labs, featuring a high-speed pipelined 8051 core operating at up to 50 MHz. It integrates 64 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM (256 + 4096 XRAM). The device includes a 12-bit ADC with up to 200 ksps throughput, two comparators, and a built-in temperature sensor. Digital peripherals include CAN 2.0, LIN 2.1, UART, SMBus, SPI, four 16-bit timers, and a PCA with PWM capabilities. It operates on a supply voltage of 1.8 V to 5.25 V and is housed in a 48-pin QFN package.

Feature Summary

• High-speed 8051 core with pipelined architecture delivering up to 50 MIPS throughput
• Integrated analog peripherals including a 12-bit ADC, comparators, and temperature sensor
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators
• Support for automotive applications with AEC-Q100 qualification and extended temperature range

Applications

• Automotive embedded systems requiring CAN and LIN communication
• Industrial control systems utilizing mixed-signal processing
• Smart sensors and instrumentation with integrated ADC and comparator functions

Procurement Notes

Verify the specific ordering suffix 'IMR' corresponds to the tape and reel packaging variant when sourcing components. Confirm that the component meets RoHS compliance requirements for your assembly process. Ensure compatibility with existing development tools such as Silicon Labs debug adapters. Check for any recent product change notices regarding assembly or material updates before finalizing procurement plans.

Selection Notes

Select this part for designs requiring a fully integrated mixed-signal MCU with automotive qualification. The 48-pin QFN package offers a compact footprint suitable for space-constrained applications. Consider the 64 kB Flash capacity and 4.25 kB RAM for code size and runtime data needs. Evaluate the peripheral set, particularly CAN and LIN controllers, against system communication requirements.

Part Context

The C8051F501-IMR belongs to the C8051F50x/F51x family of mixed-signal ISP Flash MCUs. This series is characterized by its high-performance 8051 core and extensive on-chip analog and digital peripherals. The family supports various package options, with the IMR suffix indicating a specific 48-pin QFN configuration optimized for surface-mount assembly.

Replacement Considerations

Consult the official datasheet for cross-reference information. No direct public substitute part numbers are confirmed in the provided documentation.