DESCRIPTION

The ST1305 is a 192-bit EEPROM device with associated security logic to control memory access. The circuit includes counting capabilities and thus is very well adapted to prepaid card applications.

■ Single 5 V Supply Voltage

■ Programming Time: 5 ms

■ Memory Divided Into:

– 16 bits of Circuit Identification

– 48 bits of Card Identification

– 48 bits of Count Data

– 16 bits of Certificate

– 48 bits of Transport Code

– 64 bits of Issuer Data

■ Counting Capability up to 262,144 Units

■ Circuit Protected by Transport Code for Delivery from ST to the Customer

■ 5 External Contacts Only (ISO 7816 Compatible)

■ Answer to Reset (Fully Compatible with ISO 7816-3)

■ E.S.D. Protection Greater Than 4000 V

■ Power-On and Low VCC Reset

■ 10 Years Data Retention

■ 1 Million Erase/Write Cycles Endurance