ST14E32F

The ST14E32F are 32K bit electrically erasable programmable memory products (EEPROM), organized as 8 blocks of 512 x 8 bits. The ST15E32F circuit operates with a power supply value as low as 2.7V.

The ST14E32F are compatible with the I²C extended addressing standard, two wire serial interface which uses a bi-directional data bus and serial clock.

The ST14E32F carry a built-in 4 bit, unique device identification code (1010) corresponding to the I²C bus definition.The ST14/15E32F behave  as a slave device in the I²C protocol with all memory operations synchronized by the serial clock.

Read and write operations are initiated by a START condition generated by the bus master.

The START condition of the ST14E32F is followed by a stream of 4 bits (identification code 1010), 3 bit Chip Enable input to form a 7 bit Device Select, plus one read/write bit and terminated by an acknowledge bit.

When writing data to the memory it responds to the 8 bits received by asserting an acknowledge bit during the 9th bit time. When data is read by the bus master, it acknowledges the receipt of the data bytes in the same way. Data transfers are terminated with a STOP condition.

Both wafers (sawn or unsawn) and micromodules (on film) of the ST14E32F are available.