Microchip announces a family of serial EEPROM devices with a single I/O bus interface. The devices are based on Microchip’s UNI/O memory-device protocol. The 11XX010, 11XX020, 11XX040, 11XX080 and 11XX160 single I/O EEPROM devices that can support data rates from 10 kHz to 100 kHz. The 1, 2, 4, 8 and 16 Kbit EEPROMs available in a 3-pin SOT-23 package (in addition to other higher pin count packages). The devices also include status registers; software write protection for ¼, ½ or full array; noise filtering, and robust ESD protection. The 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.

The UNI/O memory devices are supported by the new MPLAB Starter Kit for Serial Memory Products ($79.98), the MPLAB PM3 Universal Device Programmer ($895) and by software drivers available for Microchip’s PIC MCUs. The devices are offered in two versions—the 11LCXX0 versions operate from 2.5V to 5.5V, and the 11AAXX0 versions operate from 1.8V to 5.5V. All of the new memory devices are available in 3-pin SOT-23 as well as 8-pin PDIP, MSOP, SOIC and 2x3mm TDFN packages.