25AA640/25LC640 64K SPI™ Bus Serial EEPROM Device Selection Table Part Number 25AA640 25LC640 25LC640 VCC Range 1.
8-5.
5V 2.
5-5.
5V 4.
5-5.
5V Max Clock Frequency 1 MHz 2 MHz 3/2.
5 MHz Temp Ranges I I I, E 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: 5 ms 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-protect pin • Sequential read • High reliability - Data retention: 200 years - ESD pr...

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