參數(shù)資料
型號： DS8007A-EAG+
廠商： Maxim Integrated Products
文件頁數(shù)： 5/41頁
文件大小： 0K
描述： IC INTERFACE SMART CARD 48-LQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 104
應(yīng)用： 智能卡
接口： 并聯(lián)
電源電壓： 2.7 V ~ 6 V
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 管件
安裝類型： 表面貼裝
DS8007A
Multiprotocol Dual Smart Card Interface
______________________________________________________________________________________
13
Detailed Description
The following describes the major functional features of
the device. Use of this document requires the reader
have a basic understanding of ISO 7816 terminology.
Parallel Bus Interface
The device interfaces to a host computer/processor
through a multiplexed or demultiplexed, parallel, 8-bit
data bus (D0–D7). The parallel bus interface monitors
the ALE signal and automatically detects whether a
multiplexed or nonmultiplexed external bus interface is
intended. The nonmultiplexed external bus interface is
the default configuration and is maintained so long as
no edge (activity) is detected on the ALE pin. Once a
rising edge is detected on the ALE pin, the DS8007A is
placed into the multiplexed mode of operation. Once in
the multiplexed mode of operation, a reset/power cycle
or the deassertion of CS forces the device to the non-
multiplexed mode. Connecting the ALE pin to VDD or
ground forces the device into nonmultiplexed parallel
bus mode. Figure 7 shows that the bus recognition dic-
tates whether the external address lines (AD3–AD0)
can be used directly or whether the external data lines
(D7–D0) must be latched according to the ALE input
signal. In the multiplexed mode of operation, a new
address is latched irrespective of the state of CS.
ANALOG
INTERFACE
POWER-SUPPLY
SUPERVISOR
CONTROL
SEQUENCERS
ISO
UART
DIGITAL
INTERFACE
CLOCK
GENERATION
TIMEOUT
COUNTER
GNDB
I/OB
C4B
C8B
PRESB
RSTB
INT
CS
INTAUX
I/OAUX
AD0
AD1
AD2
AD3
ALE
RD
WR
D0
D1
D2
D3
D4
CLKB
VCCB
GNDA
I/OA
C4A
C8A
PRESA
RSTA
CLKA
VCCA
RSTOUT
DELAY
VDD
GND
VDDA
AGND
VUP
DC-DC
CONVERTER
CPA1
CPA2
CPB1
CPB2
D5
D6
D7
XTAL1
XTAL2
DS8007A
Figure 6. Block Diagram
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS8007A-EAG+ 功能描述:接口 - 專用 Multiprotocol Dual Smart Card Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品類型: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
DS8007A-EAG+T 功能描述:接口 - 專用 Multiprotocol Dual Smart Card Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品類型: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-ENG 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Multiprotocol Dual Smart Card Interface
DS8007-ENG+ 功能描述:接口 - 專用 Multiprotocol Dual Smart Card Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品類型: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-KIT 功能描述:界面開發(fā)工具 DS8007 Eval Kit RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
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