DESCRIPTION

The IS93C56A/66A are 2kb/4kb non-volatile, ISSI ® serial EEPROMs. They are fabricated using an enhanced CMOS design and process. The IS93C56A/66A contain power-efficient read/write memory, and organization of either 256/512 bytes of 8 bits or 128/256 words of 16 bits. When the ORG pin is connected to Vcc or left unconnected, x16 is selected; when it is connected to ground, x8 is selected. The IS93C56A/66A are fully backward compatible with IS93C56/66.

FEATURES

• Industry-standard Microwire Interface

— Non-volatile data storage

— Wide voltage operation: Vcc = 1.8V to 5.5V

— Auto increment for efficient data dump

• User Configured Memory Organization

— By 16-bit or by 8-bit

• Hardware and software write protection

— Defaults to write-disabled state at power-up

— Software instructions for write-enable/disable

• Enhanced low voltage CMOS E2PROM technology

• Versatile, easy-to-use Interface

— Self-timed programming cycle

— Automatic erase-before-write

— Programming status indicator

— Word and chip erasable

— Chip select enables power savings

• Durable and reliable

— 40-year data retention after 1M write cycles

— 1 million write cycles

— Unlimited read cycles

— Schmitt-trigger inputs

• Industrial and Automotive Temperature Grade

• Lead-free available