25AA040AT-I/OT

$0.44

Description：IC EEPROM 4KBIT SPI SOT23-6
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:acd29d3aba3f Category: Memory IC Brand: Microchip Technology

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Product introduction

25AA040AT-I/OT is listed in the Memory IC range at ChipApex. The manufacturer field lists Microchip Technology. Its product description is IC EEPROM 4KBIT SPI SOT23-6. Review the specifications below when checking this part for your BOM.

Memory IC specifications for 25AA040AT-I/OT

Description：IC EEPROM 4KBIT SPI SOT23-6
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR),Cut Tape (CT)
Memory Type：Non-Volatile
Memory Format：EEPROM
Technology：EEPROM
Memory Size：4Kbit
Memory Organization：512 x 8
Memory Interface：SPI
Clock Frequency：10 MHz
Write Cycle Time - Word, Page：5ms
Voltage - Supply：1.8V ~ 5.5V
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：SOT-23-6
Supplier Device Package：SOT-23-6
Access Time：-
Grade：-
Qualification：-

Memory IC datasheet and documents for 25AA040AT-I/OT

25AA040AT-I/OT

Memory IC Overview

The Microchip Technology 25AA040AT-I/OT is a 4 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) utilizing a SPI-compatible serial bus. It features a 512 x 8-bit organization with a maximum clock frequency of 10 MHz and operates within a supply voltage range of 1.8V to 5.5V. The device supports industrial temperature ranges from -40°C to +85°C and is housed in a 6-lead SOT-23 package.

Memory IC Feature Summary

Supports write page mode for up to 16 bytes and sequential read operations
Includes block write protection allowing selection of none, 1/4, 1/2, or all array segments
Features built-in power-on/off data protection circuitry and a write enable latch
Allows communication pausing via the hold pin without resetting the serial sequence

Memory IC Applications

Microcontroller systems requiring non-volatile data storage
Industrial applications operating within specified temperature ranges
Low-power embedded devices utilizing SPI interfaces

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature grade (-40°C to +85°C). Confirm the 'OT' suffix matches the required 6-lead SOT-23 package configuration. Ensure the component meets RoHS compliance standards as specified in the datasheet documentation.

Memory IC Selection Notes

Select this part when an SPI interface is preferred over I2C protocols. Choose the 25AA040A variant specifically for applications requiring operation down to 1.8V, distinguishing it from the 25LC040A which requires a minimum of 2.5V. Consider the SOT-23 package for space-constrained designs.

Memory IC Part Context

This component belongs to the 25XX040A family of 4 Kbit Serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 25LC040A, differentiated primarily by their minimum operating voltage requirements and specific package options available for different form factors.