C8051F502-IQ

Overview

The C8051F502-IQ is an automotive-qualified, mixed-signal ISP Flash MCU from Silicon Labs. It features a high-speed 8051 core operating at up to 50 MHz with pipelined architecture. The device includes 64 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. Key peripherals include a 12-bit ADC supporting up to 200 ksps, two voltage comparators, CAN 2.0 and LIN 2.1 controllers, and multiple serial interfaces. It operates within a supply voltage range of 1.8 V to 5.25 V and supports temperatures from -40 °C to +125 °C.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for robust industrial and automotive environments.
• Integrated CAN 2.0 and LIN 2.1 controllers enabling direct network communication without external transceivers or crystals.
• High-performance 8051 core delivering up to 50 MIPS throughput with a pipelined instruction architecture.
• On-chip debug circuitry facilitating full-speed, non-intrusive in-system debugging without additional emulation hardware.

Applications

• Motor control systems
• Sensor interface modules
• Parking assistance units
• Seat position and adjustment controllers

Procurement Notes

Verify the specific suffix 'IQ' against the manufacturer's current ordering guide to confirm package type and temperature grade. Confirm end-of-life status as the family is marked not recommended for new designs. Ensure compatibility with existing toolchains and development kits before procurement.

Selection Notes

Select this model when automotive reliability and integrated CAN/LIN capabilities are required. The 32-pin QFN/QFN package suits space-constrained designs. Consider the 64 kB Flash size for complex application logic. Evaluate power consumption requirements against the typical stop mode current specifications.

Part Context

This component belongs to the C8051F50x/F51x family of mixed-signal microcontrollers. The family provides a comprehensive set of analog and digital peripherals on a single chip. The C8051F502 variant specifically targets applications requiring CAN and LIN connectivity with automotive qualification.

Replacement Considerations

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