C8051F502-IMR

Overview

The C8051F502-IMR is an 8-bit mixed-signal microcontroller from the C8051F50x family, featuring a high-speed 8051 core with up to 50 MIPS throughput at a 50 MHz clock. 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 supporting up to 200 ksps, two voltage comparators, and multiple digital peripherals such as CAN 2.0, LIN 2.1, UART, SMBus, and SPI. It operates on a supply voltage of 1.8 V to 5.25 V and is housed in a 32-pin QFN package.

Feature Summary

• High-performance pipelined 8051 core executing 70% of instructions in one or two system clocks
• Integrated 12-bit analog-to-digital converter with selectable gain and programmable window detector
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators
• Flexible interrupt handler and priority crossbar decoder for dynamic pin assignment

Applications

• Motor control systems
• Sensor interface circuits
• Industrial process control
• Automotive electronic modules

Procurement Notes

Verify component authenticity through authorized Silicon Laboratories distributors or certified suppliers. Confirm that the part matches the specified C8051F502-IMR designation and package type. Check for relevant compliance documentation and ensure storage conditions adhere to manufacturer guidelines to maintain device integrity prior to assembly.

Selection Notes

Select this component when a robust 8-bit MCU with integrated CAN and LIN controllers is required. Consider the 64 kB Flash capacity and 4.25 kB RAM availability against application memory needs. Evaluate the 32-pin QFN footprint for space-constrained designs requiring 5 V tolerant I/O and mixed-signal capabilities.

Part Context

This device belongs to the C8051F50x/F51x Mixed Signal ISP Flash MCU Family. It shares architectural similarities with other members like the C8051F500 and C8051F506 but differs in specific memory sizes and pin counts. The family utilizes the CIP-51 microcontroller architecture and supports various packages including QFP and QFN variants.

Replacement Considerations

Consult official Silicon Laboratories documentation for current lifecycle status. Verify compatibility with existing firmware and hardware interfaces before substituting with alternative MCUs.