C8051F533A-IT

Overview

The C8051F533A-IT is an automotive-grade 8-bit microcontroller from Silicon Labs, featuring a CIP-51 core with up to 25 MIPS throughput. It integrates 4 kB of ISP Flash memory and 256 bytes of internal data RAM. The device includes a 12-bit ADC with programmable throughput up to 200 ksps, supporting up to 16 external inputs. It operates within a supply voltage range of 1.8 V to 2.7 V and supports temperatures from -40 °C to +125 °C. Communication interfaces include SPI, UART, and LIN 2.1 controller capabilities.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for high reliability in demanding environments.
• Integrated LIN 2.1 controller capable of master and slave operation without requiring an external crystal.
• High-precision internal oscillator with ±0.5% accuracy ensures stable timing for communication protocols.
• On-chip debug circuitry enables full-speed, non-intrusive in-system debugging without external emulators.

Applications

• Automotive body control modules
• Industrial sensor interface systems
• LIN bus network nodes

Procurement Notes

Verify the specific suffix IT corresponds to the TSSOP-20 package variant required for your design. Confirm that the 1.8 V to 2.7 V supply voltage range aligns with your system power rails, as this differs from other variants in the family. Check current availability status as this component may be subject to end-of-life notices or limited stock conditions.

Selection Notes

Select this part when automotive grade certification and LIN 2.1 support are mandatory requirements. Ensure the 4 kB Flash capacity meets firmware storage needs, as larger capacities are available in other series members like the C8051F531. Verify that the 1.8 V minimum operating voltage is compatible with your power management architecture before finalizing the design.

Part Context

This component belongs to the C8051F53x family of automotive and industrial MCUs. These devices are designed as small-sized, highly integrated solutions combining analog peripherals with digital I/O. The family shares common specifications such as the 25 MIPS 8051 CPU and 12-bit ADC, differing primarily in memory size and package options.

Replacement Considerations

Public confirmed substitute part numbers: None identified.