CAT24M01YE-GT3

Memory IC Overview

The CAT24M01YE-GT3 is a 1 Mbit (131,072 x 8) CMOS Serial EEPROM manufactured by onsemi. It utilizes a TSSOP-8 package and supports Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1 MHz) I2C protocols. The device operates within a supply voltage range of 1.8 V to 5.5 V. Key specifications include a 256-byte page write buffer, hardware write protection via the WP pin, and an internal address counter for sequential access. It features Schmitt triggers and noise suppression filters on SCL and SDA inputs.

Memory IC Feature Summary

• Supports Standard, Fast, and Fast-Plus I2C communication protocols with up to four devices addressable on a single bus using external A1 and A2 pins.
• Includes a 256-byte page write buffer to optimize data writing efficiency and reduce cycle times.
• Provides hardware write protection for the entire memory array when the WP pin is held high.
• Incorporates Schmitt triggers and noise suppression filters on serial data and clock inputs for improved signal integrity.

Memory IC Applications

• High reliability applications requiring error correction capabilities
• Industrial control systems operating in extended temperature ranges
• Embedded systems needing non-volatile configuration storage

Memory IC Procurement Notes

Verify that the ordering suffix 'Y' corresponds to the TSSOP-8 package type as specified in the datasheet. Confirm the 'I' suffix indicates the industrial temperature range (-40°C to +85°C). Ensure the GT3 designation matches the required tape and reel shipping format. Cross-reference the specific revision level of the datasheet to confirm compatibility with current manufacturing processes.

Memory IC Selection Notes

Select this component when a 1 Mbit capacity is required with I2C interface compatibility. The TSSOP-8 package is suitable for surface mount applications requiring a compact footprint. Consider the 1.8 V minimum supply voltage for low-power designs. The presence of external address pins allows for multiple devices on one bus without additional logic.

Memory IC Part Context

This part belongs to the CAT24M01 family of 1 Mb I2C CMOS Serial EEPROMs from onsemi. The family offers various package options including PDIP, SOIC, and UDFN. The YE-GT3 variant specifically denotes the TSSOP-8 package with industrial temperature rating and tape-and-reel packaging. It is designed for applications requiring robust data retention and high endurance cycles.

Memory IC Replacement Considerations

CAT24M01YI-GT3: Same TSSOP-8 package but limited to -40°C to +85°C range if original requires extended.

Memory IC FAQ

How does the device handle write operations across page boundaries?

The CAT24M01 contains a 256-byte page write buffer. If more than 256 bytes are written in a single sequence, the internal byte address counter wraps around within the selected page, overwriting earlier bytes.

What is the function of the WP pin?

The WP (Write Protect) pin inhibits all write operations when held HIGH. This protects the entire memory array from being modified. The state is strobed on the last falling edge of SCL preceding the first data byte.