memory products - Al Kossow's Bitsavers

ST24C022K BIT SERIAL 2 WIRE BUS CMOS EEPROMPRELIMINARY DATA• 256 x 8 SERIAL EEPROM• SINGLE +5V ONLY OPERATION• COMPATIBLE WITH THE INTER­INTEGRATED-CIRCUIT BUS• FULLY TTL COMPATIBLE INPUTS ANDOUTPUTS• UNLIMITED READ ACCESSES• ESD PROTECTION: INPUTS ARE DESIGNEDTO MEET 2.0 KV PER TEST METHOD 3015,MIL-STD 883• HIGHLY RELIABLE N-WELL CMOSTECHNOLOGY• DESIGNED FOR 10 YEAR DATA RETENTIONAFTER 10000 ERASEIWRITE CYCLE PERWORD• 0 TO + 70°C OPERATING AMBIENTTEMPERATURE RANGE.• -40TO +85°C EXTENDED TEMPERATURERANGEPDIP-8(PlastiC Package)(Ordering Information at the end of the datasheet)PIN CONNECTIONSAO 1 8 ~(+5V)VOOA17 ~6 SCLDESCRIPTIONThe ST24C02 is a 2K EEPROM manufactured inSGS-THOMSON highly reliable CMOS technology.The key features of this device are + 5 volt onlyoperation and inter-integrated circuit bus compatibility.This revolutionnary bus provides the facilitiesof a local area network within a single systemor equipment. Each IC serves as both transmitterand receiver in the synchronous data transfer ofin the bus protocol. Up to eight ST24C02s may becapacitance).Chip select is accomplished by means of the threeaddress inputs Ao, A1 and A2. Each of these inputsmust be connected externally to either + 5Vor GND and each chip is then selected through softwareby placing its 3 bit chip select address on theserial data input the (SDA) at the appropriate timein the bus protocol. Up to eight TS24C02s may beconnected to the serial bus.June 19885 SDA5 -1 0578PIN NAMESAO-A,-A2 CHIP ADDRESS INPUTSVss GROUNDSOA SERIAL DATA/ADDRESS, INPUT/OUTPUTSCL SERIAL CLOCK INPUT, ERASEIWRITEVee + 5V POWER SUPPLY119229