參數(shù)資料
型號(hào)： NCN6001
廠商： ON SEMICONDUCTOR
英文描述： Compact Smart Card Interface IC
中文描述： 緊湊型智能卡接口IC
文件頁(yè)數(shù)： 3/36頁(yè)
文件大?。?/td> 332K
代理商： NCN6001
NCN6001
http://onsemi.com
3
PIN FUNCTIONS AND DESCRIPTION
Pin
Name
Type
Description
1
I/O
Input/Output
Pull Up
This pin is connected to an external microcontroller interface. A bidirectional level
translator adapts the serial I/O signal between the smart card and the microcontroller.
The level translator is enabled when CS = L, the sub address has been selected and
the system operates in the Asynchronous mode. When a Synchronous card is in use,
this pin is disconnected and the data and the transaction take place with the MISO b3
register.
The internal pull up resistor connected on the C side is activated and visible by the
selected chip only.
2
INT
OUTPUT
Pull Up
This pin is activated LOW when a card has been inserted and detected by CRD_DET
pin. Similarly, an interrupt is generated when the CRD_VCC output is overloaded, or
when the card has been extracted whatever be the transaction status (running or
stand by).
The INT signal is reset to High according to Table 7 and Figure 11. On the other hand,
the pin is forced to a logic High when the input voltage V
CC
drops below 2.0 V.
3
CLK_IN
CLOCK INPUT
High impedance
The built-in Schmitt trigger receiver makes this pin suitable for a large type of clock
signal (Figure 30). This pin can be connected to either the microcontroller master
clock, or to a crystal signal, to drive the external smart cards. The signal is fed to the
internal clock selector circuit and translated to the CRD_CLK pin at either the same
frequency, or divided by 2 or 4, depending upon the programming mode.
Note: The chip guarantees the EMV 50% Duty Cycle when the clock divider ratio is
1/2 or
1/4
, even when the CLK_IN signal is out of the 45% to 55% range specified by
ISO and EMV specifications.
Care must be observed, at PCB level, to minimize the pick-up noise coming from the
CLK_IN line.
4
MOSI
INPUT
Master Out Slave In: SPI Data Input from the external microcontroller. This byte
contents the address of the selected chip among the four possible, together with the
programming code for a given interface.
5
CLK_SPI
INPUT
Clock Signal to synchronize the SPI data transfer. The built-in Schmitt trigger receiver
makes this pin compatible with a wide range of input clock signal (Figure 30). This
clock is fully independent from the CLK_IN signal and does not play any role with the
data transaction.
6
EN_RPU
INPUT, Logic
This pin is used to activate the I/O internal pull up resistor according to the here below
true table:
EN_RPU = Low
→
I/O Pull Up resistor disconnected
EN_RPU = High
→
I/O Pull Up resistor connected
When two or more NCN6001 chips shares the same I/O bus, one chip only shall have
the internal pull up resistor enabled to avoid any overload of the I/O line.
Moreover, when Asynchronous and Synchronous cards are handled by the interfaces,
the activated I/O pull up resistor must preferably be the one associated with the
Asynchronous circuit
.
On the other hand, since no internal pull up bias resistor is built in the chip, pin 6 must
be connected to the right voltage level to make sure the logic function is satisfied.
7
MISO
OUTPUT
Master In Slave Out: SPI Data Output from the NCN6001. This byte carries the state
of the interface, the serial transfer being achieved according to the programmed mode
(Table 2), using the same CLK_SPI signal and during the same MOSI time frame. The
three high bits [b7:b5] have no meaning and shall be discarded by the microcontroller.
An external 4.7 k Pull down resistor might be necessary to avoid misunderstanding
of the pin 7 voltage during the High Z state.
8
CS
INPUT
This pin synchronizes the SPI communication and provides the chip address and
selected functions.
All the NCN6001 functions, both programming and card transaction, are disabled
when CS = H.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCN6001/D 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Compact Smart Card Interface IC
NCN6001_06 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Compact Smart Card Interface IC
NCN6001_0610 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Smartcard Interface ICs
NCN6001DTBEVB 功能描述:界面開發(fā)工具 NCN6001 TSSOP EVAL BOARD RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
NCN6001DTBR2 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
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