参数资料
| 型号： | NCN6000DTBR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 9/36页 |
| 文件大小： | 0K |
| 描述： | IC INTERFACE SMART CARD 20TSSOP |
| 产品变化通告： | Product Obsolescence 01/Jul/2009 |
| 标准包装： | 1 |
| 应用： | ATM 终端，气泵，ISM |
| 接口： | 微控制器 |
| 电源电压： | 2.7 V ~ 6 V |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 剪切带 (CT) |
| 安装类型： | 表面贴装 |
| 其它名称： | NCN6000DTBR2GOSCT |
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NCN6000
http://onsemi.com
17
Transaction Mode
During the transaction mode, the NCN6000 maintains
power supply and clock signal to the card. All the signal
levels related with the card are translated as necessary to
cope with the MPU and the card.
The DCDC converter status and the Vbat state can be
monitored on the STATUS by using the A0 and A1 logic
Transaction Mode
Logic Conditions:
Card Output:
CS
= L
PWR_ON = H
A0
= H
A1
= H
PGM
= H
I/O
= DATA
TRANSFER
RESET
= H/L
STATUS
= L/H DCDC
status: Fail/Pass?
CRD_VCC = 3.0 or 5.0 V
CRD_CLK = CLOCK
CRD_RST = H/L
CRD_IO
= DATA
TRANSFER
To make sure the data are not polluted by power losses, it
is recommended to check the state of CRD_VCC before
launching a new data transaction. Since CS = L, this is
achieved by forcing bits A0 and A1 according to Table 4, and
reading the STATUS pin 5.
Idle Mode
The idle mode is used when a card is powered up
(CRD_VCC = Vcc), without communication on going.
Idle Mode
Logic Conditions:
Card Output:
CS
= L
PWR_ON = H
A0
= H
A1
= H
PGM
= H
I/O
= Z
RESET
= H
STATUS
= L/H according
to the internal
register results
CRD_VCC = 3.0 or 5.0 V
CRD_CLK = CLOCK active or
L or H
CRD_RST = H
CRD_IO
= Z
In addition, the CRD_CLK signal can be stopped, as
consumption of the external smart card, leaving CRD_VCC
active.
Power Down Operation
The power down mode can be initiated by either the
external MPU (pulling PWR_ON = L) or by one of the
internal error condition (CRD_VCC overload or Vbat Low).
The communication session is terminated immediately,
according to the ISO78163 sequence. On the other hand,
the MPU can run the Standby mode by forced CS = H.
When the card is extracted, the interface shall detect the
operation and run the Power Shut Off of the card as
described by the ISO/CEI 78163 sequence depicted here
after:
ISO78163 sequence:
Force RST to Low
Force CLK to Low, unless it is already in this state
Force CRD_IO to Low
Shut Off the CRD_VCC supply
Since the internal digital filter is activated for any card
insertion or extraction, the physical power sequence will be
activated 150
ms maximum after the card has been extracted.
Of course, such a delay does not exist when the MPU launch
the power down intentionally.
The time delay between each negative going signal is
500 ns typical (Figure 10).
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相关代理商/技术参数 |
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| NCN6001 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Smartcard Interface ICs |
| NCN6001/D | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Compact Smart Card Interface IC |
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| NCN6001DTBEVB | 功能描述:界面开发工具 NCN6001 TSSOP EVAL BOARD RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
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