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关键字:
IC卡ID卡接触式IC卡感应式IC卡射频IC卡电话IC卡 Keyword:
IC card ID card contactless IC card contactless IC card RF
IC card telephone IC card
4442卡技术参数
4442 card technology parameters
一、主要指标： First, the
main indicators:
● 256字节EEPROM组织方式 ●
256 bytes of EEPROM organized in a manner
● 32位保护存储器组成方式 ● 32
protected memory composition
● 3字节用户密码，密码错误计数：3次
● 3-byte user passwords, password error count: 3
● 温度范围：0℃--70℃ ●
temperature range: 0 ℃ - 70 ℃
● 至少10万次擦写 ● At
least 10 million Erasable
● 至少10年数据保存期 ● At
least 10 data retention
● 最小写/擦时间：2.5ms ●
minimum write / wipe time: 2.5 ms
● 工作电压：5V ● voltage:
5 V
● 最大供电电流：10mA ●
maximum supply current: 10 mA
出厂时已固化用户代码32字节写保护数据区
The factory has been cured user code to write 32 bytes of data
protection zone
二、存储区分配 Second, the
storage area allocation
00 01 02 03 04 05 06 07 08
09 0A 0B 0C 0D 0E 0F 00 01 02 03 04 05 06 07 08 09 0A 0B 0C
0D 0E 0F
92 23 10 01 46 0b 81 15 ff
ff ff ff ff ff ff ff 92 23 10 01 46 0b 81 15 ff ff ff ff ff
ff ff ff
ff ff ff ff ff 6d 77 36 36
33 00 ff ff ff ff ff Ff ff ff ff ff 6d 77 36 36 33 00 ff ff
ff ff ff
ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff Ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff
ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff Ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff
ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff Ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff
ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff Ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff
数据区 Data Area
ff ff
ff ff ff ff ff ff ff ff ff ff ff ff ff ff Ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff Ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff
ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff Ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff
ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff Ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff
ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff Ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff
ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff Ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff
三、保密特性： Third,
security features:
1、
写保护区(前32个字节)的每一个字节可单独进行写保护，进行写保护后，内容不可再更改(即固化数据) 1,
write-protected area (32 bytes) is a byte can be individually
write-protected, write-protected, not to change the content (that is
curable data)
2、
密码核对正确前，全部数据均可读，如果有需要，可对数据进地适当加密。 2, matching the correct
password, can read all the data, if necessary, the data into the
appropriate encryption.
3、 核对密码正确后可写入或修改。 3,
check the correct password can be written or amended.
4、
三字节的用户密码，核对正确后本身可更改，有效至卡下电为止。 4, three bytes of user
passwords, right after the check itself can change, effective date,
to the card.
5、
密码出错计数器，初始值为3，密码核对出错1次，便减1，若计数器值为0，则卡自动锁死，数据只可读出，不可再进行更改也无法再进行密码核对；若不为零时，有一次密码核对正确，可恢复到初始值。
5, password error counters, the initial value of 3, 1 error,
password verification, it cut 1, if counter value is 0, then
automatically locked card, the machine-readable data only, not to
conduct further changes can not Password verification; if not zero,
once the correct password verification, and recovery to the initial
value.
6、字节地址0-5、6-7出厂前已由厂家写好，不可更改。
6, byte address 0-5,6-7 factory prepared by the manufacturers, not
changes.
四、注意 Fourth, the
attention
密码区另外编址，不在0-256字节内。
Another area password for the site, and not within the 0-256
bytes. |
