BL7430EC 104-bit EEPROM Smart
Counter Circuit
Description
BL7430EC is a IC Card chip (module)made
by 1.2µmCMOS EERPOM process. It has 104
bits EEPROM with logical encryption and
function. It can be widely used in payphone
Card and other kinds of prepay IC Cards.
Pin assignment
V
CC
C
1
C
2
C
3
C
5
GND
C
6
N.C.
C
7
I/O
RST
CLK
Features
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104 x 1 bit organization
Maximum of 20480 counting units
Logical encryption
EEPROM programming time :5ms
Supply voltage:5V
Working current:<1mA
Minimum erasing times 100,000
Data retention time :>10 years
Contacts configuration and serial interface according to ISO 7816 standard (synchronous
transmission)
Pin Description
Pin No.
1
2
3
4
5
6
Parameter
C1
C2
C3
C5
C6
C7
Symbol
V
CC
RST
CLK
GND
N.C.
I/O
Test Condition
Supply Voltage
Control input (reset signal)
Clock input
Ground
Not connected
Bidrectional data line (open drain)
Function Description
Block Diagram
http://www.belling.com.cn
-1-
Total
4 Pages
8/16/2006
BELLING [ SHANGHAI BELLING CO., LTD. ]
