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Part Manufacturer: ST Microelectronics

Part Description: 5-contact memory card IC 272-bit EEPROM with advanced security mechanisms and inlock system

Part Details:

ST1335D, ST1336D ST1355D 5-Contact Memory Card IC 272-bit EEPROM With Advanced Security Mechanisms and Inlock System DATA BRIEF s 5 V Single Supply Voltage s Counting Capability (two options) ­ up to 32767 (85 -1)­ 8 times reloadable, up to 4095 (84-1) s Active Authentication Function (ST1335D/55D) s Cipher Block Chaining Function (ST1355D) s Memory Divided into : ­ 16 bits of Circuit Identification­ 48 bits of Card Identification Micromodule ­ 40 bits of Count Data (D15) ­ 16 bits for Validation Certificate­ 24 bits of Transport Code­ 64 bits of Issuer Data (ST1336D) or Authentication Secret Key (ST1335D/55D) ­ 32 bits of Anti-tearing Flags (optional)­ 56 bits of User data (optionally not erasable) s More than 500,000 Erase/Write Cycles s More than 10 Years Data Retention s 3.5 ms Programming Time at 5 V (typical) s 500 µA Supply Current at 5 V (typical) s 250 µA Stand-by Current at 5 V (typical) Wafer DESCRIPTIONThe members of the ST1335D/36D/55D family areprincipally designed for use in prepaid Phonecard Figure 1. Logic Diagram applications. Each is a 272-bit EEPROM device, V with associated security logic and special fuses to CC control memory access. The memory is arrangedas a matrix of 34 x 8 cells, accessed in a serial bit-wise fashion for reading and programming, and ina byte-wise fashion for internal erasing. An on-chip RST ST1335D Table 1. Signal Names ST1336D I/O ST1355D CLK Clock CLK RST Reset I/O Serial Data Input / Output VCC Supply Voltage GND GND Ground AI03729 June 2000 1/4 Complete data available under NDA. ST1335D, ST1336D, ST1355D

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