C8051F533-C-ITR

Overview

The C8051F533-C-ITR is an automotive-grade, 8-bit microcontroller from Silicon Labs, based on the C8051F52x/F53x family. It features a high-speed 8051 core operating at up to 25 MHz with 25 MIPS throughput. The device integrates 4 kB of ISP Flash memory and 256 bytes of internal data RAM. Key peripherals include a 12-bit ADC with programmable throughput up to 200 ksps, a programmable comparator, and a LIN 2.1 controller. It supports SPI and UART interfaces, operates within a supply voltage range of 2.0 V to 5.25 V, and functions across an extended temperature range of –40 °C to +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for robust industrial and automotive environments.
• Integrated LIN 2.1 controller supporting both master and slave modes without requiring an external crystal.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.

Applications

• Motor control systems
• Sensor interface circuits
• Parking assistance modules

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and temperature grade. Check current lifecycle status as this part may be restricted for new designs. Ensure ESD handling protocols are followed during storage and assembly.

Selection Notes

Select this MCU when automotive reliability and LIN bus connectivity are required. Compare against other C8051F variants based on Flash size and I/O count. Consider the TSSOP-20 package constraints for PCB layout. Evaluate power consumption requirements against the available low-power operating modes.

Part Context

This component belongs to the C8051F52x/F53x family of mixed-signal ISPs Flash MCUs. It shares architectural similarities with other members like the C8051F531 but differs in memory capacity and peripheral configuration. The family emphasizes high integration and ease of development through built-in debug capabilities.

Replacement Considerations

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