IS31CS8975-QFLS2-TR

Microcontrollers Overview

The IS31CS8975-QFLS2-TR is an automotive-grade 8-bit microcontroller based on the 8051 core, manufactured by Lumissil Microsystems. It operates at a maximum clock speed of 32MHz and features 16KB of Flash program memory with 1K x 16 bytes of RAM. The device supports I2C, LINbus, SPI, and UART/USART interfaces within a 16-WQFN (4x4) package. It includes integrated SAR ADCs, a DAC, and peripherals such as LVD, LVR, POR, PWM, and WDT. Operating voltage ranges from 2.3V to 5.5V, with an extended temperature range up to 125°C.

Microcontrollers Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for reliable operation in vehicle environments.
• Integrated intelligent LED driving capabilities combined with a standard 8051 microcontroller architecture.
• Supports multiple communication protocols including LINbus, I2C, SPI, and UART for flexible system integration.

Microcontrollers Applications

• Automotive interior lighting control systems
• Intelligent LED driver modules requiring MCU integration
• Vehicle body electronics and peripheral control

Microcontrollers Procurement Notes

Verify that the specific suffix QFLS2-TR matches the required package type and tape-and-reel specifications for your manufacturing line. Confirm that the component meets AEC-Q100 requirements if intended for automotive applications. Check current RoHS3 compliance status before finalizing procurement orders to ensure regulatory adherence.

Microcontrollers Selection Notes

Select this component when an integrated solution combining LED driving functions with an 8051-compatible MCU is required. It is suitable for designs needing LINbus support alongside standard digital interfaces. Consider the 125°C operating temperature limit and the 16-WQFN footprint constraints during PCB layout planning.

Microcontrollers Part Context

This part belongs to the Lumissil CS897x series of 8-bit microcontrollers designed for embedded applications. It integrates general-purpose MCU features with specialized peripheral controls, targeting cost-sensitive and space-constrained designs in industrial and automotive sectors.

Microcontrollers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing firmware and hardware interfaces before considering alternative components from other manufacturers.

Microcontrollers FAQ

What is the maximum operating temperature for this component?

The IS31CS8975-QFLS2-TR supports an extended operating temperature range up to 125°C (TA).

Does this microcontroller support automotive communication protocols?

Yes, it includes a dedicated LINbus interface in addition to I2C, SPI, and UART/USART capabilities.