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參數(shù)資料
| 型號(hào)： | AT88SC0808CRF |
| 英文描述： | AT88SC0808CRF Summary [Updated 05/03. 9 Pages] Contactless 8-Kbit user memory with authentication and encryption. ISO/IEC 14443 Type B compliant. This is a summary document. A complete is available under NDA. For more information. please contact your local Atmel sales office. |
| 中文描述： | AT88SC0808CRF摘要[更新05/03。 9頁]接觸的8千位的身份驗(yàn)證和加密用戶內(nèi)存。的ISO / IEC 14443 B類標(biāo)準(zhǔn)。這是一個(gè)總結(jié)文件。一個(gè)完整的保密協(xié)議下提供。欲了解更多信息。請(qǐng)聯(lián)系您當(dāng)?shù)貝厶孛窢栦N售辦事處。 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大小： | 141K |
| 代理商： | AT88SC0808CRF |
5
AT88SC0104C
2021BS–SMEM–10/02
Protocol Selection
The AT88SC0104C is compatible with two different communication protocols: asynchro-
nous T = 0 as defined by ISO 7816-3 or synchronous two-wire protocol. The power-up
sequence determines which of the two protocols will be used.
Asynchronous
T = 0 Protocol
The power-up sequence complies with ISO 7816-3 for a cold reset.
V
CC
goes high; RST, I/O-SDA and CLK-SCL are low.
Set I/O-SDA in receive mode.
Provide a clock signal to CLK-SCL.
RST goes high after 400 clock cycles.
The device will respond with a 64-bit ATR code, including historical bytes to indicate the
memory density within the CryptoMemory family. Once the asynchronous mode has
been selected, it is not possible to switch to the synchronous mode without powering off
the device.
Figure 2.
Asynchronous T = 0 Protocol
Synchronous
Two-wire Protocol
The synchronous mode is the default after powering up V
CC
due to the internal pull-up
on RST.
Power-up V
CC
, RST goes high also.
After stable V
CC
, CLK-SCL and I/O-SDA may be driven.
Figure 3.
Synchronous Two-wire Protocol
Note:
Four clock pulses must be sent before the first command is issued.
Vcc
I/O-SDA
RST
CLK-SCL
ATR
Vcc
I/O-SDA
RST
CLK-SCL
1
2
3
4
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相關(guān)代理商/技術(shù)參數(shù) |
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| AT88SC0808CRF_06 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:CryptoRF EEPROM Memory 8 Kbits |
| AT88SC0808CRF_09 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:13.56 MHz CryptoRF? EEPROM Memory 8 Kbits |
| AT88SC0808CRF-L01B | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:CryptoRF EEPROM Memory 8 Kbits |
| AT88SC0808CRF-MR1 | 功能描述:RFID應(yīng)答器 CRYPTORF 8K, 82pF RoHS:否 制造商:Murata 存儲(chǔ)容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| AT88SC0808CRF-MS1 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:CryptoRF EEPROM Memory 8 Kbits |
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