25C640 Datasheet | MicrochipTechnology

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...