BL7431A データシートの表示（PDF） - Shanghai Belling Co., Ltd.

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コンポーネント説明

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BL7431A

256-Bit EEPROM Logical Encrypted Chip

Shanghai Belling Co., Ltd. 

BL7431A 256-Bit EEPROM Logical

Encrypted Chip

Partition of EEPROM

Address

Area1

Area2

Area3

Area4

0~15

16~23

24~63

64

65~71

72~79

80~103

Area5

Area6

Area7

104~143

144

145~151

152~159

Area8 160~183

Area9 184~255

Before

personalize

（transmissio

n password

not verified）

ROM

ROM

ROM

ROM

ROM

PROM

ROM(can not

be read)

ROM

ROM

ROM

ROM

ROM

ROM

Memory Function Type

Before

personalize

（Transmissio

n password

verified）

ROM

PROM

PROM

PROM

PROM

EEPROM

EEPROM

EEPROM

EEPROM

EEPROM

EEPROM

EEPROM

EEPROM

After personalize

Second

password

not

verified

Second

password

verified

FG=1

ROM

ROM

ROM

ROM

ROM

ROM

ROM

ROM

ROM

EEPROM

EEPROM

EEPROM

PROM

ROM

（can not

be read）

ROM

（can not

be read）

EEPROM

EEPROM

EEPROM

Function

Chip Manufacture

Code

Card Manufacture

Code

Issue Code

Personalized Flag

Used as error

counter before

personalization

Store the

transmission

password before

personalization

After

personalization,

used as common

memory

Issue Extend Code

FG Flag

Second Error

Counter

Password of User

Data

User Data

Area10 256~511

ROM

EEPROM

EEPROM

User Data(only in

BL7431B )

http://www.belling.com.cn

-2-

Total 4 Pages

8/16/2006

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