ST1331, ST1333
ST1353
6-Contact Memory Card IC
272-bit EEPROM with Advanced Security Mechanisms
DATA BRIEFING
s
s
s
s
s
s
s
s
s
s
5 V Single Supply Voltage
Counting Capability (two options)
鈥?up to 32767 (8
5
-1)
鈥?8 times reloadable, up to 4095 (8
4
-1)
Active Authentication Function (ST1333/1353)
Cipher Block Chaining Function (ST1353)
Memory Divided into :
鈥?16 bits of Circuit Identification
鈥?48 bits of Card Identification
鈥?40 bits of Count Data
鈥?16 bits for Validation Certificate
鈥?24 bits of Transport Code
鈥?64 bits of Issuer Data (ST1331) or
Authentication Secret Key (ST1333/1353)
鈥?32 bits of Anti-tearing Flags (optional)
鈥?56 bits of User data (optionally not erasable)
1 Million Erase/Write Cycle (minimum)
10 Year Data Retention (minimum)
3.5 ms Programming Time at 5 V (typical)
500
碌A(chǔ)
Supply Current at 5 V (typical)
250
碌A(chǔ)
Stand-by Current at 5 V (typical)
1
Micromodule
(D10)
1
1
1
Wafer
DESCRIPTION
The members of the ST1331/1333/1353 family are
principally designed for use in prepaid Phonecard
applications. Each is a 272-bit EEPROM device,
with associated security logic and special fuses to
control memory access. The memory is arranged
as a matrix of 34 x 8 cells, accessed in a serial bit-
wise fashion for reading and programming, and in
Table 1. Signal Names
CLK
RST
Function code
B
I/O
V
CC
GND
Data Input / Output
Supply Voltage
Clock
Figure 1. Logic Diagram
VCC
RST
B
ST1331
ST1333
ST1353
I/O
CLK
GND
Ground
AI03105b
October 1999
Complete data available under NDA.
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STMICROELECTRONICS
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