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| 型号： | NCN6000DTB |
| 厂商： | ON Semiconductor |
| 文件页数： | 6/36页 |
| 文件大小： | 0K |
| 描述： | IC SMART CARD COMPACT 20-TSSOP |
| 产品变化通告： | Product Obsolescence 01/Jul/2009 |
| 标准包装： | 75 |
| 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： | 管件 |
| 安装类型： | 表面贴装 |
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NCN6000
http://onsemi.com
14
DCDC Converter and Card Detector Status
The NCN6000 status can be polled when CS = L. Please
signals. The status message is described in Table 4.
Note: in order to cope with a start up under low battery
condition, the Vbat OK message uses a negative logic as
depicted here below.
Table 4. Card and DCDC Status Output
PGM
A1
A0
STATUS
Message
HIGH
L
LOW
No Card
HIGH
L
HIGH
Card Present
HIGH
L
H
LOW
DCDC Converter
Overloaded
HIGH
L
H
HIGH
DCDC Converter OK
HIGH
H
L
LOW
Vbat OK
HIGH
H
L
HIGH
Vbat Undervoltage
HIGH
H
HIGH
CRD_VCC OK
HIGH
H
LOW
CRD_VCC Undervoltage
The STATUS pin provides a feedback related to the
detection of the card, the state of the DCDC converter, the
Vbat undervoltage and CRD_VCC undervoltage situations.
When PGM = H, the STATUS pin returns a High if a card is
detected present, a Low being asserted if there is no card
inserted. In any case, the external card is not automatically
powered up. When the external MPU asserts PWR_ON = H,
together with CS = L, the CRD_VCC supply is provided to
the card and the state of the DCDC converter, the Vbat and
the CRD_VCC can be polled through the STATUS pin.
Card Power Supply Timing
At power up, the CRD_VCC power supply rise time
depends upon the current capability of the DCDC
converter associated with the external inductor L1 and the
reservoir capacitor connected across CRD_VCC and
GROUND.
On the other hand, at turn off, the CRD_VCC fall time
depends upon the external reservoir capacitor and the peak
current absorbed by the internal CMOS transistor built
across CRD_VCC and GROUND. These behaviors are
depicted in Figure 6. Since these parameters have finite
values, depending upon the external constraints, the
designer must take care of these limits if the tON or the tOFF
provided by the data sheets does not meet his requirements.
Figure 6. Card Power Supply Turn ON and OFF Timing
Typical CRD_VCC Rise Time @ Cout = 10
mF, V = 5.0 V
Typical CRD_VCC Fall Time @ Cout = 10
mF, V = 5.0 V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCN6000DTBG | 功能描述:输入/输出控制器接口集成电路 2.7V POS/ATM Smart Card Interface RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-64 封装:Tray |
| NCN6000DTBR2 | 功能描述:输入/输出控制器接口集成电路 2.7V POS/ATM Smart RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-64 封装:Tray |
| NCN6000DTBR2G | 功能描述:输入/输出控制器接口集成电路 2.7V POS/ATM Smart Card Interface RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-64 封装:Tray |
| 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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