參數(shù)資料
型號(hào)： DS8005-RRX+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 9/20頁(yè)
文件大小： 0K
描述： SMART CARD AFE DUAL 28SOIC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 25
通道數(shù)： 2
功率（瓦特）： 700mW
電壓 - 電源，數(shù)字： 1.8V, 3V, 5V
封裝/外殼： 28-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 28-SOIC W
包裝： 管件
配用： DS8005-KIT#-ND - EVALUATION KIT FOR DS8005
其它名稱(chēng)： 90-8005+RRX
Switching A/B Interfaces
One of the device’s key features is the ability to man-
age two card slots at the same time. The multiplexing
control signal SEL_AB is used to determine which inter-
face is active for communication, though it is possible
to leave both interfaces powered at the same time.
When switching between interfaces, the device pre-
serves the state of control signals CLKDIV1, CLKDIV2,
1.8V, 5V/3V, CMDVCC, and RSTIN by latching the pin
states. This allows the now inactive interface to stay
powered while the other interface is activated for com-
munication, and it also allows for fast switching
between card interfaces without the need for a card
deactivation and activation sequence. After switching
SEL_AB, the control signals CLKDIV1, CLKDIV2, 1.8V,
5V/3V, CMDVCC, and RSTIN must not be changed for
78s while the device latches the state of the pins for
the inactive interface. After the control signals are
latched, a 42s window is provided to change the control
inputs.
Note that the behavior of the OFF and OFF2 pins is
dependent on the SEL_AB pin. OFF always refers to
the active interface, and OFF2 always reports events
on the inactive interface. This allows the device to
monitor for card insertion and removal on both inter-
faces simultaneously. See Figure 10 for details on the
behavior of the SEL_AB, OFF, and OFF2 pins with
regard to card presence.
DS8005
Smart Card Interface
______________________________________________________________________________________
17
DS8005
TRANSPARENT
LATCH A
REG A
CLKA DIV
VCCA
CLKA
ENA
RSTA, I/OA, GNDA
1_8V, 5V/3V, CLKDIV1,
CLKDIV2, RST, I/O
SEL_AB
OFF
TRANSPARENT
LATCH B
REG B
CLKB DIV
VCCB
CLKB
PRESA
ENA
RSTB, I/OB, GNDB
TRANSITION
SENSOR
DELAY
SMART CARD
STATUS 1
PRESB
SMART CARD
STATUS 2
OFF2
1
0
1
0
Figure 10. Switching A/B Interfaces
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS8005-RRX+ 功能描述:接口 - 專(zhuān)用 Dual Smart Card AFE RoHS:否 制造商:Texas Instruments 產(chǎn)品類(lèi)型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
DS8007 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Multiprotocol Dual Smart Card Interface 8kV (min) ESD Protection on Card Interfaces
DS8007_11 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Multiprotocol Dual Smart Card Interface 8kV (min) ESD Protection on Card Interfaces
DS8007A 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Multiprotocol Dual Smart Card Interface
DS8007A-EAG+ 功能描述:接口 - 專(zhuān)用 Multiprotocol Dual Smart Card Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品類(lèi)型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
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