24AA025T-I/SN

Memory IC Overview

The Microchip Technology 24AA025T-I/SN is a 2 Kbit (256 x 8) serial EEPROM utilizing an I²C-compatible interface. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports clock frequencies up to 400 kHz. The device features a maximum access time of 900 ns and a page write cycle time of 5 ms. It is housed in an 8-lead SOIC package with a width of 3.90 mm and is rated for industrial temperatures between -40°C and +85°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using hardware address pins A0, A1, and A2.
• Includes Schmitt trigger inputs and output slope control to suppress noise and eliminate ground bounce.
• Features a 16-byte page write buffer for efficient data storage operations.

Memory IC Applications

• Contiguous memory expansion across multiple devices on a shared I²C bus
• Low-power embedded systems requiring non-volatile data retention
• Industrial applications operating within standard temperature ranges

Memory IC Procurement Notes

Verify that the specific ordering suffix 'SN' corresponds to the 8-lead SOIC package configuration required for your printed circuit board layout. Confirm that the 'I' designation meets the necessary industrial temperature range specifications for your operational environment. Ensure compatibility with the 1.7V to 5.5V supply voltage requirements before finalizing procurement.

Memory IC Selection Notes

Select this component when a 2 Kbit capacity is sufficient and hardware write protection is not required, as the WP pin is not internally connected on the 24AA025 series. Choose the tape-and-reel packaging indicated by the 'T' suffix for automated surface-mount assembly processes. Ensure the design accommodates the open-drain nature of the SDA and SCL lines requiring external pull-up resistors.

Memory IC Part Context

This part belongs to the 24AA024/24LC024/24AA025/24LC025 family of 2 Kbit Serial Electrically Erasable PROMs. It shares functional similarities with the 24AA024 but lacks the hardware write-protect pin found on the 024 variant. It differs from the 24LC025 series primarily in its lower minimum operating voltage of 1.7V compared to the 2.5V requirement of the LC series.

Memory IC Replacement Considerations

The 24AA025-I/SN serves as a direct replacement for the tube-packaged 24AA025-I/SN. For alternative packages, consider the 24AA025-I/MS (MSOP) or 24AA025-I/ST (TSSOP). Verify that any substitute maintains the 1.7V to 5.5V operating range and lacks hardware write protection.