IS93C46A

Notes:
1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

The IS93C46A is a low-cost 1kb non-volatile, ISSI ® serial EEPROM. It is fabricated using an enhanced CMOS design and process. The IS93C46A contains power-efficient read/write memory, and organization of 128 bytes of 8 bits or 64 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 IS93C46A is fully backward compatible with IS93C46.

An instruction set defines the operation of the devices IS93C46A, including read, write, and mode-enable functions. To protect against inadvertent data modification, all erase and write instructions are accepted only while the device is write-enabled. A selected x8 byte or x16 word can be modified with a single WRITE or ERASE instruction.

Additionally, the two instructions WRITE ALL or ERASE ALL can program the entire array. Once a device begins its self-timed program procedure, the data out pin (Dout) can indicate the READY/ BUSY status by raising chip select (CS). The selftimed write cycle includes an automatic erasebefore- write capability. The device can output any number of consecutive bytes/words using a single READ instruction.