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參數資料
| 型號： | 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） |
| 文件頁數： | 14/36頁 |
| 文件大小： | 358K |
| 代理商： | NCN6000 |
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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
consult Figures 4 and 5 for a description of input and output
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
L
LOW
No Card
HIGH
L
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
H
HIGH
CRD_VCC OK
HIGH
H
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 t
ON
or the t
OFF
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 F, V = 5.0 V
Typical CRD_VCC Fall Time @ Cout = 10 F, V = 5.0 V
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| NCN6004AFTBR2 | Dual SAM/SIM Interface Integrated Circuit |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 產品: 輸入/輸出端數量: 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 產品: 輸入/輸出端數量: 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 產品: 輸入/輸出端數量: 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 產品: 輸入/輸出端數量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
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