The 24XX512(1) from Microchip Technology Inc. is a 512-Kbit Electrically Erasable PROM (EEPROM). The module is organised as a single block of 64K x 8-bit memory with a two-wire serial interface. Its low-voltage design allows operation down to 1.7 V, with standby and active currents of only 1 uA or 400 uA. The 24XX512 can also write pages for up to 128 bytes of data. Bytes of data. This module can perform random as well as sequential reads up to the 512-K limit. Functional address lines enable up to eight devices on the same bus, for up to 4-Mbit address space.