在通信模式上,NFC不同于RFID網(wǎng)絡(luò),后者是建立于主從關(guān)系之下,并且芯片以被動的方式通過昂貴的、需要能源支持的“讀取”設(shè)備來讀取。而NFC設(shè)備卻能被設(shè)置為被動和主動兩種模式,即使在設(shè)備關(guān)機(jī)的情況下(被動模式),仍然可以發(fā)送識別數(shù)據(jù),也正是這一特點使其成為智能卡應(yīng)用的理想選擇。同時,它也可在主動模式下,與其他主動或被動的RFID設(shè)備進(jìn)行通信。
芯片
Remark:Type Chip model User Memory Type 1 Topaz 512 512 bytes Type 2 MIFARE Ultralight ® 64 bytes MIFARE Ultralight ® EV1 384/1024 bits MIFARE Ultralight® C 192 bytes NTAG213 / NTAG215 / NTAG216 144/504/888 bytes Type 4 MIFARE ® DESFire ® EV1 (2K/4K/8K) 2K/4K/8K bytes Type 5 ICODE® SLI-X 1024 bits
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MIFARE DESFire are registered trademarks of NXP B.V. and are used under license.
MIFARE and MIFARE Plus are registered trademarks of NXP B.V. and are used under license.
MIFARE and MIFARE Ultralight are registered trademarks of NXP B.V. and are used under license.