參數(shù)資料
型號: 73S8024RN-20IM
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 模擬信號調(diào)理
英文描述: SPECIALTY ANALOG CIRCUIT, QCC20
封裝: 4 X 4 MM, 0.850 MM HEIGHT, QFN-20
文件頁數(shù): 23/23頁
文件大?。?/td> 318K
代理商: 73S8024RN-20IM
73S8024RN
Low Cost Smart Card Interface
DATA SHEET
Page: 9 of 23
2005 TERIDIAN Semiconductor Corporation
Rev 1.5
DEACTIVATION SEQUENCE
Deactivation is initiated either by the system controller by setting the
CMDVCC high, or automatically in the event
of hardware faults. Hardware faults are over-current, overheating, VDD fault, VPC fault, VCC fault, and card
extraction during the session. To be noted that VPC and VCC faults are linked together so that a fault is generated
when VPC goes lower than VCC.
The following steps show the deactivation sequence and the timing of the card control signals when the system
controller sets the
CMDVCC high or OFF goes low due to a fault or card removal:
-
RST goes low at the end of t1.
-
CLK is set low at the end of t2.
-
I/O goes low at the end of t3. Out of reception mode.
-
VCC is shut down at the end of time t4. After a delay t5 (discharge of the VCC capacitor), VCC is low.
RST
CLK
I/O
VCC
t
1
t
2
t
3
t
4
t
5
CMDVCC
-- OR--
OFF
t1 = > 0.5s, timing by 1.5MHZ internal Oscillator
t2 = > 7.5s
t3 = > 0.5s
t4 = > 0.5s
t5 = depends on VCC filter capacitor.
For NDS application, CF=1F makes t1 + t2 + t3 + t4 + t5 < 100s
Figure 4: Deactivation Sequence
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73S8024RN-20IM/F 功能描述:輸入/輸出控制器接口集成電路 Smart Card Interface ISO7816-3 & EVM4.0 RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray
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73S8024RN-20IMR/F 功能描述:輸入/輸出控制器接口集成電路 Smart Card Interface ISO7816-3 & EVM4.0 RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray
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