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Medical Card / Medicare card and introduce the basics
Publish:Shenzhen Jianhexing Smart Card Co.,Ltd    Time:2014-10-13

4442 Medicare card contactless IC card and construction of medical card contact smart card!
Need to contact Wang: 13828760722 qq: 1005412312

4442, 4442IC cards, 4428 card manufacturers, 4442 price, professional production 4442IC card manufacturers
    12-year-old brand card, making 4442IC Card Factory: global logistics support. Quality goods on time. Direct prices, chip that global shipments.
4442 Introduction:
One, contact 4442 key indicators:
● 32-bit protected memory;
● 256 bytes of EEPROM;
● 3-byte user password, the password error count: three times;
● Temperature range: 0 ℃ ~ 70 ℃;
● At least 100,000 times erase;
● At least 10 years data retention.
● Operating voltage: 5V.
Second, the contact made ​​4442 card security features:
1, write-protected area (before 32 bytes) of each byte can be individually write-protected, post write-protected content can not be changed (ie curing data).
2, check the correct password before all the data can be read, if necessary, the data can be properly encrypted.
3, check the correct password can be written or modified.
4, three bytes of user passwords can be changed after checking correct itself effectively to the next card is charged.
5, the password error counter, the initial value of 3, check the error code 1, then minus one, if the counter value is 0, the card is automatically locked, the data is only read out, can no longer be changed passwords can no longer be checked; if time is zero, there is a password to check the correct time to return to the initial value.
6, 21 to 26-byte address for user code, I may as large users in this dedicated a globally unique code so that users use a unified release (all cards after the factory can not be modified).
7, the byte address 0 to 5, 6 to 7 written the factory by the manufacturer, can not be changed.
8, note the password addressing another area, not in the 0 to 256 bytes of internal
And excellent personalized custom card printing and processing services; company two automatic contactless IC card packaging lines, professional domestic and international users package SLE, FM, and other various types of contactless chip cards.
Our contactless card production 4442 production of high quality PVC material, do not fade, not because of the climate problem and broken, durable, made ​​in strict accordance with 4442 data card issuers provide operational data, quality assurance, prompt delivery, chip quality, there is a demand of customers, welcome!

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