25LC640AT-I/MS

$0.70

Description：IC EEPROM 64KBIT SPI 10MHZ 8MSOP
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:a0cb8f6c9efc Category: Memory IC Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：IC EEPROM 64KBIT SPI 10MHZ 8MSOP
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR),Cut Tape (CT)
Memory Type：Non-Volatile
Memory Format：EEPROM
Technology：EEPROM
Memory Size：64Kbit
Memory Organization：8K 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 ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package：8-MSOP
Access Time：-
Grade：-
Qualification：-

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25LC640AT-I/MS

Overview

The Microchip Technology 25LC640AT-I/MS is a 64-Kbit (8192 x 8-bit) Serial Electrically Erasable PROM featuring an SPI-compatible interface. It operates within a voltage range of 2.5V to 5.5V and supports clock frequencies up to 10 MHz at 5.5V, with reduced speeds at lower voltages. The device utilizes an 8-lead MSOP surface-mount package and functions across an industrial temperature range of -40°C to +85°C. Key electrical characteristics include a maximum write current of 5 mA and standby current of 1 µA.

Feature Summary

Supports high-speed serial communication via SPI bus with hold functionality for interrupt servicing
Includes hardware write protection via WP pin and software block protection for array segments
Features self-timed erase and write cycles with automatic latch reset upon completion

Applications

Microcontroller data storage for system parameters
Configuration memory in embedded systems
Non-volatile data logging applications

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging as distinct from bulk tube variants. Confirm the 'I' designation aligns with the required industrial temperature range specifications for your application environment. Ensure voltage requirements match the 2.5V minimum threshold defined for the LC series.

Selection Notes

Select this component when SPI interface compatibility is required alongside non-volatile storage needs. Consider the 32-byte page size limitation for write operations, which requires software management to prevent data wrap-around across page boundaries. Evaluate power consumption constraints against the specified read and standby currents.

Part Context

This part belongs to the 25LC640A family of 64-Kbit serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 25AA640A but differs in operating voltage ranges. The device is designed for direct interfacing with popular microcontroller families supporting standard SPI protocols.