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ST1305 - High Endurance CMOS 192 bit EEPROM

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.

The ST1305 is protected by hard-wired security logic GND and special fuses.

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Full PDF Text Transcription

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ST1305 High Endurance CMOS 192 bit EEPROM With Secure Logic Access Control BRIEF DATA s s s 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 Figure 1. Delivery Forms s s 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 Micromodule Wafer s s s s s s Figure 2.
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