25C040XT/ST

$0.48

Description：IC EEPROM 4KBIT SPI 3MHZ 8TSSOP
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR)

SKU:7152fe21737a Category: Memory IC Brand: Microchip Technology

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Product introduction

25C040XT/ST is listed in the Memory IC range at ChipApex. The manufacturer field lists Microchip Technology. Its product description is IC EEPROM 4KBIT SPI 3MHZ 8TSSOP. Review the specifications below when checking this part for your BOM.

Memory IC specifications for 25C040XT/ST

Description：IC EEPROM 4KBIT SPI 3MHZ 8TSSOP
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR)
Memory Type：Non-Volatile
Memory Format：EEPROM
Technology：EEPROM
Memory Size：4Kbit
Memory Organization：512 x 8
Memory Interface：SPI
Clock Frequency：3 MHz
Write Cycle Time - Word, Page：5ms
Voltage - Supply：4.5V ~ 5.5V
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Surface Mount
Package / Case：8-TSSOP (0.173", 4.40mm Width)
Supplier Device Package：8-TSSOP
Access Time：-
Grade：-
Qualification：-

Memory IC datasheet and documents for 25C040XT/ST

25C040XT/ST

Memory IC Overview

The Microchip Technology 25C040XT/ST is a 4 Kbit (512 x 8-bit) serial Electrically Erasable PROM. It operates within a VCC range of 4.5V to 5.5V and supports a maximum clock frequency of 3 MHz via an SPI-compatible bus. The device utilizes an 8-pin TSSOP package with an alternate pinout configuration specific to the 'X' suffix. Key electrical parameters include a typical standby current of 1 µA at 2.5V and up to 5 µA at 5.5V, with write cycle times of 5 ms maximum.

Memory IC Feature Summary

Supports sequential read operations with automatic address pointer incrementation across the memory array.
Includes hardware write protection via the WP pin and software block protection for selective array segments.
Features self-timed erase and write cycles initiated by the Chip Select signal transition.

Memory IC Applications

Microcontroller system data storage
Configuration parameter retention
Calibration value storage

Memory IC Procurement Notes

Verify the specific ordering suffixes against official documentation to confirm voltage ranges and temperature grades. The XT designation indicates tape and reel packaging with an alternate pinout for the TSSOP package. Confirm that the 4.5V to 5.5V supply requirement aligns with the target application circuit before procurement.

Memory IC Selection Notes

Select this component when a 4 Kbit non-volatile memory solution is required with SPI interface compatibility. Ensure the system power supply remains within the 4.5V to 5.5V operating range. Consider the industrial or automotive temperature ratings based on environmental requirements and verify the TSSOP package dimensions fit the PCB layout constraints.

Memory IC Part Context

This part belongs to the 25XX040 family of 4 Kbit Serial EEPROMs from Microchip Technology. It shares functional similarities with the 25AA040 and 25LC040 but is distinguished by its higher voltage operating range of 4.5V to 5.5V. The datasheet notes that this specific series is not recommended for new designs, suggesting newer alternatives.