Product Summary

The 25lc640xt is a 64 Kbit Serial Electrically Erasable PROM [EEPROM]. The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select (CS) input.

Parametrics

25lc640xt absolute maximum ratings: (1)VCC: 7.0V; (2)All inputs and outputs w.r.t. VSS: -0.6V to VCC + 1.0V; (3)Storage temperature: -65°C to 150°C; (4)Ambient temperature under bias: -65°C to 125°C; (5)ESD protection on all pins: 4 kV.

Features

25lc640xt features: (1)8192 x 8 Bit Organization; (2)32 Byte Page; (3)Write Cycle Time: 5 ms max.; (4)Self-Timed Erase and Write Cycles; (5)Sequential Read; (6)8-pin PDIP, SOIC and TSSOP Packages.

Diagrams

25lc640xt pin connection 

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
25LC640XT-I/ST
25LC640XT-I/ST

Microchip Technology

EEPROM 8kx8 - 2.5V Rot Pin

Data Sheet

0-1930: $0.33
1930-2500: $0.33
25LC640XT-I/STG
25LC640XT-I/STG

Microchip Technology

EEPROM 8kx8 - 2.5V Rot Pin Lead Free Package

Data Sheet

Negotiable