24CW640T-I/SN

Memory IC Overview

The Microchip Technology 24CW640T-I/SN is a 64 Kbit (8K x 8) serial electrically erasable programmable read-only memory (EEPROM). It features an I²C (2-Wire) serial interface with a maximum clock frequency of 1 MHz. The device operates within a supply voltage range of 1.6 V to 5.5 V and supports surface-mount installation in an SOIC-8 package. Key electrical parameters include a 450 ns access time, 1 mA maximum active read current, and data retention of 200 years. It functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports software write protection for data security
• Compatible with standard I²C bus protocols
• Industrial temperature rating for robust operation

Memory IC Applications

• Data logging systems requiring non-volatile storage
• Configuration parameter storage in embedded controllers
• Calibration data retention in sensor modules

Memory IC Procurement Notes

Verify the specific suffix 'I/SN' confirms the industrial temperature grade (-40°C to +85°C) and SOIC-8 tape-and-reel packaging. Confirm RoHS compliance status via the manufacturer's latest datasheet or product change notification. Ensure the ordering quantity matches the reel specifications provided by the distributor.

Memory IC Selection Notes

Select this component when a 64 Kbit capacity is required with I²C connectivity. The 1 MHz clock speed offers faster performance compared to legacy 400 kHz EEPROMs. The wide 1.6 V to 5.5 V supply range allows compatibility with both low-voltage and 5 V logic systems without level shifting.

Memory IC Part Context

This part belongs to the 24CW series of serial EEPROMs from Microchip Technology. The series is characterized by its CMOS technology and I²C interface. The 'T' suffix indicates tape-and-reel packaging, while 'SN' denotes the SOIC-8 package type. This series is designed for applications needing reliable non-volatile memory in compact form factors.

Memory IC Replacement Considerations

Direct pin-compatible substitutes within the same family include the 24CW640-I/ST (tube packaging) and 24CW640T-I/MUY (UDFN-8 packaging). Verify that the replacement maintains the same voltage range and temperature grade if environmental constraints are critical.