25AA080BT-I/SN

Memory IC Overview

The Microchip Technology 25AA080BT-I/SN is an 8 Kbit Serial Electrically Erasable PROM featuring a 1024 x 8-bit organization. It utilizes a standard SPI-compatible serial bus with SCK, SI, SO, and CS signals for communication. The device supports a maximum clock frequency of 10 MHz and operates within a supply voltage range of 1.8 V to 5.5 V. It includes a 32-byte page size and self-timed write cycles with a maximum duration of 5 ms. The component is housed in an 8-lead SOIC package and is rated for industrial temperatures from -40 °C to +85 °C.

Memory IC Feature Summary

• Supports block write protection allowing selective array segment locking
• Includes hardware write-protect pin functionality controlled by status register bits
• Features hold input capability to pause serial communication without sequence reset

Memory IC Applications

• Microcontroller system data storage
• Configuration parameter retention
• Calibration value archiving

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature range (-40 °C to +85 °C) and 'SN' denotes the SOIC package. Confirm RoHS compliance and lead-free status as specified in the datasheet. Ensure the application circuitry matches the 1.8 V to 5.5 V operating voltage requirements and respects the 10 MHz maximum clock frequency limits during interface design.

Memory IC Selection Notes

Select this part when a 32-byte page size is required instead of the 16-byte variant found in 'A' series devices. The 'B' designation indicates the larger page buffer capacity suitable for higher throughput sequential writes. Verify that the host microcontroller supports the necessary SPI modes and can manage the write enable latch sequences correctly.

Memory IC Part Context

This component belongs to the 25XX080A/B family of 8 Kbit SPI EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 25LC080 series but differs in minimum operating voltage specifications. The 'B' version specifically provides a 32-byte page size compared to the 16-byte pages of the 'A' version, affecting write optimization strategies.

Memory IC Replacement Considerations

The 25AA080AT-I/SN serves as a compatible alternative within the same family, offering identical electrical characteristics and pinout compatibility while maintaining the 32-byte page structure.