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| 型号： | E5561 |
| 英文描述： | e5561 Advance Information [Updated 4/03. 26 Pages] Read/Write transponder IC for contactless RF identification for highly sophisticated security applications. |
| 中文描述： | e5561推进信息[更新4 / 03。 26页]读/写非接触式射频转发器的高度复杂的安全应用识别芯片。 |
| 文件页数： | 8/26页 |
| 文件大小： | 410K |
| 代理商： | E5561 |
16
e5561
4699A–RFID–04/03
Figure 23. Coil Voltage in Direct-access Mode
Software Reset
To set up the ICs in a defined state, a software reset command can be executed by
sending a pseudo block address Fh. The write sequence is shown in Figure 25. The
Reset command is also accepted during stop mode.
Figure 24. Software Reset
Crypto Mode
The crypto mode enables a high-security authentication of the e5561. For this purpose,
a certified algorithm called AUT64 is used. The crypto-mode write sequence is shown in
Figure 25. After the OPcode 01, the challenge is sent to the e5561 (LSB first).
Figure 25. Crypto Mode Write Sequence
After the write sequence, the AUT64-algorithm is started. The computation of the
response takes about 30/10 ms (125 kHz). During this time, a checksum – the number
of the challenge bits set to 1 – can be read by the base station. Once the response has
been computed, the base station can read the response in loop with the terminator 1.
This remains until a POR occurs or another gap is detected. The data stream of the
crypto mode is shown in Figure 26.
Figure 26. Crypto Mode Datastream
During the encryption calculation, the checksum is sent in loop with a special pattern
(see Figure 28). The bits of the checksum are sent with LSB first. If the base station
detects an error by comparing the checksum, the calculation of the response can be
interrupted by sending a new challenge. This will start the authentication procedure
again.
read block
Term.
End of direct access
sequence
read FFh
read block
Term.
V
Coil1-Coil2
10
1111EOT
01
Challenge bits
63
0
EOT
write sequence
read FFh
checksum
read 00b
Terminator 1
response
Terminator 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| E5561_06 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Standard Read/Write Crypto Identification IC |
| e5561A-DOW | 功能描述:射频无线杂项 Encryption w/unique options RoHS:否 制造商:Texas Instruments 工作频率:112 kHz to 205 kHz 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:8 mA 最大功率耗散: 工作温度范围:- 40 C to + 110 C 封装 / 箱体:VQFN-48 封装:Reel |
| E5562-00L022-L | 功能描述:以太网和电信连接器 RJ11 6P2C SIDE ENTRY RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级: |
| E5562-60L121-L | 功能描述:以太网和电信连接器 RJ11 6P2C SIDE ENTRY RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级: |
| E5562-60LU22-L | 功能描述:以太网和电信连接器 RJ11 6P2C SIDE ENTRY RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级: |
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