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ST1305-W2 Fiches technique(PDF) 1 Page - STMicroelectronics

No de pièce ST1305-W2
Description  High Endurance CMOS 192 bit EEPROM With Secure Logic Access Control
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1305-W2 Fiches technique(HTML) 1 Page - STMicroelectronics

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BD.05/9803V1
AI01032
RST
VCC
ST1305
GND
I/O
CLK
Figure 1. Delivery Forms
ST1305
High Endurance CMOS 192 bit EEPROM
With Secure Logic Access Control
BRIEF DATA
s
Single 5 V Supply Voltage
s
Programming Time: 5 ms
s
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
s
Counting Capability up to 262,144 Units
s
Circuit Protected by Transport Code for Delivery
from ST to the Customer
s
5 External Contacts Only (ISO 7816 Compatible)
s
Answer to Reset (Fully Compatible with ISO 7816-3)
s
E.S.D. Protection Greater Than 4000 V
s
Power-On and Low VCC Reset
s
10 Years Data Retention
s
1 Million Erase/Write Cycles Endurance
DESCRIPTION
The ST1305 is a 192-bit EEPROM device with associat-
ed 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
and special fuses. The memory is arranged as a matrix
of 24x8 cells, accessed in a serial bit-wise fashion for
reading and programming, and in a byte-wise fashion
for internal erasing.
The device recognises three commands issued via the
RST and CLK pins (as described in the full data sheet):
– RESET: to reset the internal address register to 00d
– READ: to increment the internal address register,
and read the data bit at that address
– PROG: to program the bit at the current address.
Figure 2. Pin Connection
Table 1. Signal Names
CLK
Clock
RST
Reset
I/O
Serial Data Input/Output
VCC
Supply Voltage
GND
Ground
Micromodule
Wafer


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