25LC040AT-E/SN

$0.54

Description：IC EEPROM 4KBIT SPI 10MHZ 8SOIC
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:154ea6c635c6 Category: Memory IC Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：IC EEPROM 4KBIT SPI 10MHZ 8SOIC
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：2.5V ~ 5.5V
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Access Time：-
Grade：-
Qualification：-

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25LC040AT-E/SN

Overview

The Microchip Technology 25LC040AT-E/SN is a 4 Kbit (512 x 8-bit) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM). It operates within a supply voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 10 MHz via a standard SPI-compatible serial bus. The device features automotive temperature grade (-40°C to +125°C), 1,000,000 erase/write cycle endurance, and data retention exceeding 200 years. It utilizes an 8-lead SOIC package.

Feature Summary

Supports sequential read operations and page write mode with up to 16 bytes per page.
Includes built-in hardware write protection via the WP pin and software block protection for none, 1/4, 1/2, or all of the array.
Features power-on/off data protection circuitry and a write enable latch to prevent inadvertent writes.
Allows communication pausing via the HOLD pin without resetting the serial sequence.

Applications

Microcontroller systems requiring non-volatile data storage
Industrial applications demanding high reliability and extended temperature ranges
Automotive electronic modules
SPI bus peripheral devices

Procurement Notes

Verify the specific ordering suffix 'E' confirms the automotive temperature range (-40°C to +125°C) and 'SN' indicates the 8-lead SOIC package. Confirm RoHS compliance status and check for any export control documentation requirements before finalizing procurement orders.

Selection Notes

Select this component when an SPI EEPROM requires automotive-grade temperature stability and low-power CMOS operation. Ensure the system voltage falls within the 2.5V to 5.5V range and that the host controller supports the required SPI protocol timing for 10 MHz operation.

Part Context

This part belongs to the 25LC040A family of 4 Kbit Serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 25AA040A but differs in minimum operating voltage and temperature specifications. The device is designed for direct interface with popular microcontroller families.