TSE2002B3CNCG8

Overview

The TSE2002B3CNCG8 is a digital temperature sensor with integrated 256-byte serial EEPROM. It operates on a single 3V to 3.6V supply and features an I2C/SMBus interface supporting 10-400 kHz speeds. The device provides temperature accuracy of ±0.5°C typical and ±1°C maximum from -20°C to +125°C. It includes programmable resolution from 0.0625°C to 0.5°C, selectable hysteresis, and a user-programmable EVENT pin for thermal management.

Feature Summary

• Integrated 256-byte serial EEPROM with permanent or reversible software write protection for system configuration storage
• High-accuracy temperature sensing with programmable resolution and selectable hysteresis levels
• Configurable open-drain EVENT output supporting interrupt or comparator modes for thermal alerts
• Compliant with JEDEC JC42.4 specification and SMBus timeout requirements

Applications

• DIMM modules (DDR2, DDR3)
• Servers, laptops, ultra-portables, and PCs
• Hard disk drives and PC peripherals
• Industrial temperature monitors

Procurement Notes

Verify component authenticity through authorized Renesas distributors. Confirm package integrity and pin alignment upon receipt. Check datasheet revisions for any updates to electrical characteristics or pin definitions before finalizing design integration.

Selection Notes

Select this component when high accuracy and SPD storage are required in memory applications. Ensure the host controller supports I2C/SMBus protocols and can handle the specific address configurations provided by SA0-SA2 pins. Verify voltage compatibility within the 3V to 3.6V range.

Part Context

This device belongs to the TSE2002 family of temperature sensors with EEPROM. Originally manufactured by Integrated Device Technology (IDT), it was later acquired by Renesas Electronics Corporation. The part is designed specifically for memory module applications requiring precise thermal monitoring and data storage capabilities.

Replacement Considerations

TSE2002GB2A1NCG8

FAQ

How is the lower half of the EEPROM protected?

The lower 128 bytes (addresses 0x00 to 0x7F) can be permanently locked using the PSWP instruction or temporarily protected using SWP/CWP instructions.

What is the function of the EVENT pin?

The EVENT pin is an open-drain output that signals temperature events. It can be configured as an active-high or active-low interrupt or comparator output based on programmable limits.