IS93C66A

www.DataSheet4U.com IS93C56A IS93C66A ISSI MAY 2006 ® 2K-BIT/4K-BIT SERIAL ELECTRICALLY ERASABLE PROM FEATURES DESCRIPTION Industry-standard Microwire Interface The IS93C56A/66A are 2kb/4kb non-volatile, — Non-volatile data storage ISSI ® serial EEPROMs. They are fabricated using — Wide voltage operation: an enhanced CMOS design and process. The Vcc = 1.8V to 5.5V IS93C56A/66A contain power-efficient read/write — Auto increment for efficient data dump memory, and organization of either 256/512 bytes User Configured Memory Organization of 8 bits or 128/256 words of 16 bits. When the — By 16-bit or by 8-bit ORG pin is connected to Vcc or left unconnected, Hardware and software write protection x16 is selected; when it is connected to ground, — Defaults to write-disabled state at power-up x8 is selected. The IS93C56A/66A are fully — Software instructions for write-enable/disable backward compatible with IS93C56/66. 2 Enhanced low voltage CMOS E PROM An instruction set defines the operation of the technology devices, including read, write, and mode-enable Versatile, easy-to-use Interface functions. To protect against inadvertent data — Self-timed programming cycle modification, all erase and write instructions are — Automatic erase-before-write accepted only while the devices are write-enabled. — Programming status indicator A selected x8 byte or x16 word can be modified — Word and chip erasable with a single WRITE or ERASE instruction. Shee — Chip select enables ...