參數(shù)資料
型號(hào): NCN6000
廠商: ON SEMICONDUCTOR
英文描述: Compact Smart Card Interface IC(智能卡接口集成電路)
中文描述: 緊湊型智能卡接口IC(智能卡接口集成電路)
文件頁(yè)數(shù): 32/36頁(yè)
文件大?。?/td> 358K
代理商: NCN6000
NCN6000
http://onsemi.com
32
Printed Circuit Board Layout
Since the NCN6000 carries high speed currents together
with high frequency clock, the printed circuit board must be
carefully designed to avoid the risk of uncontrolled
operation of the interface.
A typical singlesided PCB layout is provided in
Figure 34 highlighting the ground technique.
The card socket uses a low cost ISO only version, all the
parts being located on the Component side. Connector J3
makes reference to the microcontroller used by the final
application. Of course, the connector is not necessary and
standard copper tracks might be used to connect the MPU to
the NCN6000 interface chip.
2335 mis (60 mm)
2
U
N
SMARTCARD ISO CONTACTS
MPU
V
s
+
b
C4
CLK
RST
GROUND
C8
I/O
V
PP
GND
Figure 34. Typical Single Sided Printed Circuit Board Layout
Application Note
A partial schematic diagram of the demo board designed
to support the NCN6000 applications is depicted in
Figure 35. This schematic diagram highlights the interface
between the microcontroller and the Smart Card, leaving
aside the peripherals used to control the MPU.
Conclusion
From a practical stand point, the CRD_VCC output
capacitor has been split into two 6.8 F/10 V/X7R, one
being located as close as possible across pins 13 and 17 of
the NCN6000, the second one being located close by the
smart card physical connector. On the other hand, care has
been observed to minimize the cross coupling between the
clock signals (both Input and CRD_CLK) and the other
signals presents on the board.
The microcontroller holds the software necessary to
program the NCN6000, together with the code handling the
T0 operation. Provisions are made to provide a
communication link with an external computer by using the
RS232 standard port.
Due to the Chip Select signal, several NCN6000 can share
a common data bus as depicted in Figure 36. In this example,
two interfaces are connected to a single MPU, the CS pins
being controlled by two different signals.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCN6000/D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Compact Smart Card Interface IC
NCN6000DTB 功能描述:輸入/輸出控制器接口集成電路 2.7V POS/ATM Smart 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
NCN6000DTBG 功能描述:輸入/輸出控制器接口集成電路 2.7V POS/ATM Smart Card Interface 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
NCN6000DTBR2 功能描述:輸入/輸出控制器接口集成電路 2.7V POS/ATM Smart 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
NCN6000DTBR2G 功能描述:輸入/輸出控制器接口集成電路 2.7V POS/ATM Smart Card Interface 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