4428 Fudan white card contactless 4428IC card meter card meter card door card access control

Electronic Performance ● 256 × 8 位 byte EEPROM ● Direct addressing ● Write Protection bit ● 32-bit protected-writing of data bits ● ● meet 7816-3 standard marks the end of the reset response ● Low address 32 bytes of data provided unrecoverable word Section erase and then write the time: the standard value 25ms ● least 10,000 write-erase cycles ● Data retention: 10 years security features ● Three bytes of user passwords. ● check the correct password before all the data can only be read, it can not be rewritten. ● check the correct password can be changed after the data, including passwords and then inside. ● error counter, the initial value of 3, check the error code 1, then subtract 1, if the counter value is 0, then the card is automatically locked, the data can only be read out, can not change the password can no longer check; if the zero, once the password is checked properly, restore to the initial value 3. ● write-protected area (first 32 bytes) of each byte can be individually write-protected, be write-protected content can not be changed (ie curing data). Bo Guangzhou City Smart Card Technology Co., Ltd. has many years of extensive fabrication and management experience, professional production of PVC cards, IC cards, ID cards, contactless IC card, contactless IC card, ID card, M1 cards, RFID cards Philips S50, S70,4442,4428,5542,5528, HID, T5577, ATMEL series chip cards, CPU chip cards, parking cards, access cards, health cards, social security card, stored-value cards, video cards, VIP cards, membership cards, discount cards, loyalty cards, scratch cards, shaped cards, warranty cards, magnetic stripe cards, barcode cards, telecom cards, campus cards, badges, portrait cards and other card products. We have 2,000 square meters of production base, 200 employees, 20 R & D personnel as well as the world's most advanced smart card production equipment: Heidelberg four-color offset press, Heidelberg four-color offset press, fully automatic chip packaging machines, automatic on-line ultrasound machine, automatic butt welding machine, laminating machine, CNC punch card machines, automatic flat yards, convex code machines, laser code machines, automatic detection machines and other equipment, the production of energy has reached 80 million, is the largest production capacity most Strong most comprehensive card companies. Energy production has reached 80 million, it is the most productive of the most comprehensive one of the largest card companies. We have a sincere service, professional skills, excellent quality, good reputation, reasonable price and good after-sales service, it has won the trust of customers worldwide and support. Up to now, our business continues to expand international orders, products have been exported to more than 100 countries the United States, Japan, Germany, France, Britain, Cambodia, Malaysia, Singapore, Russia, Ukraine, the Comoros, Djibouti, Yemen, Iraq and other and regions, recognized by customers around the world. "Quality First, reasonable price, win-win situation" for customers to provide quality products and services, hope to continue to support our customers and friends Hironobu smart card technology, we will do better.