Microchip has a family of serial EEPROM devices with a single I/O bus interface. The devices are based on the company's patent-pending UNI/O memory-device protocol.

The 11XX010, 11XX020, 11XX040, 11XX080 and 11XX160 are the first single I/O EEPROM devices that can support data rates from 10kHz to 100kHz; and the only 1, 2, 4, 8 and 16kbit EEPROMs available in a 3-pin SOT-23 package (in addition to other higher pin count packages).

The new devices also include advanced such as status registers; software write protection for ¼, ½ or full array; noise filtering, and robust ESD protection for the highest reliability.

For evaluation the UNI/O memory devices are available in 8-pin packages with pin-outs that overlay any standard I2C or SPI EEPROM socket. This means that existing hardware can be used with the available UNI/O software drivers for a quick test.

See http://www.microchip.com