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參數(shù)資料
| 型號(hào)： | AT88SC0404C-10CC-XX |
| 元件分類： | EEPROM |
| 英文描述： | EEPROM |
| 中文描述： | EEPROM的 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大?。?/td> | 141K |
| 代理商： | AT88SC0404C-10CC-XX |
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-MP-XX | EEPROM |
| AT88SC0404C-MP-XX-2.7 | EEPROM |
| AT88SC0404C-PC-XX | EEPROM |
| AT88SC0404C-PC-XX-2.7 | EEPROM |
| AT88SC0404CRF | 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. |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT88SC0404C-10CC-XX-2.7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| AT88SC0404C-10PC-XX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| AT88SC0404C-10PC-XX-2.7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| AT88SC0404C-10SC-XX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| AT88SC0404C-10SC-XX-2.7 | 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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