標題: 有誰知道rfid 125KHz r/w card with user memory more than 1Kbyte? [打印本頁] 作者: chip123 時間: 2007-9-5 12:29 PM 標題: 有誰知道rfid 125KHz r/w card with user memory more than 1Kbyte? 轉貼以下問題：9 |* m' K& [- q( O/ X1 y
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Does anybody knows if there is rfid 125KHz r/w card with user memory more than 1Kbyte (8192 bits). I have used the T5557 from Atmel but the memory is too small (about 330 bit) I have found some other codes from Atmel and EM marine, but the free user memory is about 512 bit or another one somewhere near 912 bit.作者: eland 時間: 2007-9-11 10:05 AM 標題: google一下喽 据我所知，没听说过125KHz同时容量又在8kbits的RFID4 _0 i/ U9 F* F' z1 _! O
一般来说，如果配置如此大的EEPROM的话，那么一般都会采用较高的频率，例如13.56MHz，否则的话，但是全部读出8kbits的数据差不多就要2 seconds了（假设数据传输速率为125/32=4kbits/s），好像难于接受