25AA080D-I/ST

Memory IC Overview

The Microchip Technology 25AA080D-I/ST is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM accessed via a SPI-compatible serial bus. It operates within a supply voltage range of 1.8V to 5.5V and supports industrial temperature ranges from -40°C to +85°C. The device features a maximum clock frequency of 10 MHz, a 32-byte page size, and self-timed erase/write cycles with a maximum duration of 5 ms. It includes hardware write protection capabilities and high reliability specifications.

Memory IC Feature Summary

• Supports SPI-compatible serial communication with hold functionality for bus pausing
• Includes programmable block write protection and power-on data protection circuitry
• Features low-power CMOS technology with standby current as low as 1 µA
• Provides high endurance exceeding 1 million erase/write cycles and data retention over 200 years

Memory IC Applications

• Microcontroller system data storage
• Configuration parameter storage
• Calibration data retention
• Device identification information storage

Memory IC Procurement Notes

Verify the specific suffix 'I/ST' corresponds to the Industrial temperature grade (-40°C to +85°C) and TSSOP-8 package. Confirm that the 'D' variant designation indicates the 32-byte page size requirement for your application design. Ensure compatibility with the 1.8V minimum operating voltage if using lower supply rails. Check for any recent Product Change Notifications regarding packaging or assembly updates.

Memory IC Selection Notes

Select this component when a 32-byte page write capability is required instead of the 16-byte pages found in the 'C' version devices. Choose this part for applications needing a 1.8V minimum operating voltage, distinguishing it from the 2.5V minimum 'LC' series. Consider the TSSOP-8 package constraints for PCB layout. Verify that the SPI interface timing requirements align with the master controller's capabilities across the full voltage range.

Memory IC Part Context

This device belongs to the 25XX080C/D family of 8K SPI Serial EEPROMs from Microchip Technology. It shares functional similarities with the 25LC080D but differs in operating voltage specifications. The 'D' suffix denotes the 32-byte page architecture, while 'I' specifies the industrial temperature rating. It is designed for direct interfacing with popular microcontroller families.

Memory IC Replacement Considerations

The 25AA080B-I/ST is listed as an alias for this part number in distributor databases. However, datasheet verification confirms the official designation is 25AA080D-I/ST. No other cross-references are explicitly confirmed in the provided documentation.