ST1305B

Features:

` Single Supply Voltage (5 V)
` Memory Divided Into:
   16 bits of Circuit Identification
   48 bits of Card Identification
   48 bits of Count Data
   16 bits of Certificate
    24 bits of Transport Code
   64 bits of Issuer Data
` Counting Capability up to 262,144
` 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
` 1 Million Erase/Write Cycles (minimum)
` 10 Year Data Retention (minimum)
` 5 ms Programming Time (typical)


Description

The ST1305B 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.

The ST1305B is protected by hard-wired security logic and special fuses. The memory is arranged as a matrix of 24x8 cells, accessed in a serial bit-