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25C640

MicrochipTechnology
Part Number 25C640
Manufacturer MicrochipTechnology
Description 64K SPI Bus Serial EEPROM
Published Mar 23, 2005
Detailed Description M 25AA640/25LC640/25C640 64K SPI™ Bus Serial EEPROM PACKAGE TYPES Temp Ranges C,I C,I C,I,E CS SO WP VSS PDIP/SOIC 1 25x...
Datasheet PDF File 25C640 PDF File

25C640
25C640

Overview
M 25AA640/25LC640/25C640 64K SPI™ Bus Serial EEPROM PACKAGE TYPES Temp Ranges C,I C,I C,I,E CS SO WP VSS PDIP/SOIC 1 25xx640 2 3 4 8 7 6 5 VCC HOLD SCK SI Max Clock Frequency 1 MHz 2 MHz 3 MHz DEVICE SELECTION TABLE Part Number 25AA640 25LC640 25C640 VCC Range 1.
8-5.
5V 2.
5-5.
5V 4.
5-5.
5V FEATURES • Low power CMOS technology - Write current: 3 mA typical - Read current: 500 µA typical - Standby current: 500 nA typical • 8192 x 8 bit organization • 32 byte page • Write cycle time: 5ms max.
• Self-timed ERASE and WRITE cycles • Block write protection - Protect none, 1/4, 1/2, or all of array • Built-in write protection - Power on/off data protection circuitry - Write enable latch - Write prote...


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