24AA64FT-I/OT

Memory IC Overview

The Microchip Technology 24AA64FT-I/OT is a 64 Kbit (8K x 8) Electrically Erasable PROM featuring a 2-Wire I²C compatible serial interface. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum clock frequency of 400 kHz. The device includes hardware write-protect for the upper quarter of the array and supports page writes up to 32 bytes. It is housed in an 8-lead TSSOP package, rated for industrial temperatures between -40°C and +85°C.

Memory IC Feature Summary

• Hardware write-protect capability for the upper quarter of the memory array
• Supports cascading up to eight devices on the same bus via address pins
• Schmitt trigger inputs provide noise suppression

Memory IC Applications

• Personal communications systems
• Data acquisition applications
• Advanced low-power electronic designs

Memory IC Procurement Notes

Verify that the specific suffix 'I/OT' corresponds to the Industrial temperature grade (-40°C to +85°C) and the Tape & Reel packaging format. Confirm the operating voltage range matches the system requirements, as this variant supports operation down to 1.7V. Ensure the design accounts for the open-drain nature of the SDA and SCL lines requiring pull-up resistors.

Memory IC Selection Notes

Select this component when a 64 Kbit EEPROM with I²C compatibility is required for low-voltage environments starting at 1.7V. It is suitable for applications needing hardware protection for critical data segments. Consider alternative packages like PDIP or MSOP if surface mount constraints differ, or choose the 24LC64F variant if the minimum operating voltage requirement is higher than 2.5V.

Memory IC Part Context

This part belongs to the 24AA64F family of 64 Kbit Serial EEPROMs manufactured by Microchip Technology. The family shares identical electrical characteristics and functional block diagrams but differs in package types and temperature grades. The 'I' designation indicates the Industrial temperature range, while 'T' denotes tape and reel packaging.

Memory IC Replacement Considerations

The 24AA64F-I/ST serves as a direct pin-compatible replacement offering the same electrical specifications in a TSSOP-8 tube package. For through-hole applications, the 24AA64F-I/P provides equivalent functionality in a PDIP-8 package.