24AA025T-I/ST

Memory IC Overview

The Microchip Technology 24AA025T-I/ST is a 2 Kbit (256 x 8) serial EEPROM utilizing an I²C-compatible 2-wire interface. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports clock frequencies of up to 400 kHz. The device features a 16-byte page write buffer, Schmitt trigger inputs for noise suppression, and output slope control to eliminate ground bounce. It is housed in an 8-lead TSSOP package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Low-power CMOS technology with typical standby current of 1 μA
• Hardware write protection not available; WP pin is internally disconnected
• Supports cascading up to eight devices on the same bus
• Includes Schmitt trigger inputs and output slope control

Memory IC Applications

• Data storage in low-power embedded systems
• Configuration memory for microcontrollers
• Industrial control applications requiring non-volatile data retention

Memory IC Procurement Notes

Verify that the specific ordering suffix 'T' corresponds to tape-and-reel packaging if required by assembly equipment. Confirm the 'I' suffix indicates the industrial temperature grade (-40°C to +85°C). Ensure the design does not rely on hardware write protection via the WP pin, as this feature is absent in the 24AA025 variant compared to the 24AA024.

Memory IC Selection Notes

Select this component when a wide voltage range starting at 1.7V is necessary, distinguishing it from the 2.5V minimum 24LC025. Choose the TSSOP package for surface-mount applications. Note that unlike the 24AA024, this part lacks internal hardware write protection, requiring software-based management for data security.

Memory IC Part Context

This part belongs to the 24AA024/24LC024/24AA025/24LC025 family of 2 Kbit Serial Electrically Erasable PROMs. It shares the same physical footprint and interface protocols as other members but differs in voltage specifications and write-protection capabilities. The 'T' suffix typically denotes reel packaging, while 'I' specifies the industrial temperature rating.

Memory IC Replacement Considerations

The 24AA025-I/ST is a direct functional replacement for the non-tape version. For wider voltage compatibility, consider the 24LC025 series, though it requires a minimum of 2.5V. The 24AA024 offers similar functionality but includes hardware write protection.