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參數(shù)資料
| 型號： | AT88SC0404CRF |
| 英文描述： | AT88SC0404CRF Summary [Updated 05/03. 9 Pages] Contactless 4-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： | AT88SC0404CRF摘要[更新05/03。 9頁]接觸4千位的身份驗證和加密用戶內(nèi)存。的ISO / IEC 14443 B類標(biāo)準(zhǔn)。這是一個總結(jié)文件。一個完整的保密協(xié)議下提供。欲了解更多信息。請聯(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?。?/td> | 141K |
| 代理商： | AT88SC0404CRF |
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT88SC0404C-SC-XX | EEPROM |
| AT88SC0404C-SC-XX-2.7 | EEPROM |
| AT88SC0808C-09CT-XX | EEPROM |
| AT88SC0808C-09CT-XX-2.7 | EEPROM |
| AT88SC0808C-09DT-XX | EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT88SC0404CRF-MR1 | 功能描述:電可擦除可編程只讀存儲器 CRYPTORF 4K, 82pF RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| AT88SC0404CRF-MX1 | 功能描述:電可擦除可編程只讀存儲器 CRYPTORF 4K, 13mm RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| AT88SC0404CRF-MY1 | 功能描述:電可擦除可編程只讀存儲器 CRF 4Kbit 4zone Green RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| AT88SC0404CRF-WA1 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:13.56 MHz CryptoRF EEPROM Memory 4 Kbits |
| AT88SC0404C-SC-XX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
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