64K 32K 16K X25644/46 X25324/26 X25164/66 Programmable Watchdog Timer w/Serial E2PROM DESCRIPTION 8K x 8 Bit 4K x 8 Bit 2K x 8 Bit FEATURES • Programmable Watchdog Timer with Reset Assertion —Reset Signal Valid to Vcc=1V —Power Up Reset Control • Save Critical Data With Block LockTM Protection —Block LockTM Protect 0, 1/4, 1/2 or all of Serial E2PROM Memory Array • In Circuit Programmable ROM Mode • Long Battery Life With Low Power Consumption —50µA Max Standby Current, Watchdog On —1µA Max Standby Current, Watchdog Off —5mA Max Active Current during Write —400µA Max Active Current during Read • 1.
8V to 3.
6V, 2.
7V to 5.
5V and 4.
5V to 5.
5V Power Supply Operation • 2MHz Clock Rate • Min...

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