参数资料
| 型号： | NCN4557MTG |
| 厂商： | ON Semiconductor |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC SMART CARD/SIM DUAL 16-QFN |
| 产品变化通告： | Product Discontinuation 30/Sept/2011 |
| 标准包装： | 123 |
| 系列： | * |
| 应用： | * |
| 接口： | * |
| 电源电压： | * |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN（3x3） |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
NCN4557
http://onsemi.com
11
this state or 8
ms after the ENABLE pin is set LOW in
the other cases.
CRD_I/O is forced to LOW about 8 ms after the
ENABLE pin is set LOW.
Then CRD_VCC Supply Shuts Off
Figure 13. NCN4557 Power Down Sequence
CRD_VCCA/B
CRD_IOA/B
CRD_CLKA/B
CRD_RSTA/B
ENABLE
TOFF ~ 8.0 ms
Input Schmitt Triggers
All the logic input pins (excepted I/O and CRD_I/O,
Figure 3) have builtin Schmitt trigger circuits to prevent
the NCN4557 against uncontrolled operation. The typical
dynamic characteristics of the related pins are depicted in
Figure 14.
OUTPUT
VDD
ON
OFF
0.2 x VDD
or
0.4 V
0.7 x VDD
INPUT
Figure 14. Typical Schmitt Trigger Characteristics
Shutdown Operating
In order to save power or for other purpose required by
the application it is possible to put the NCN4557 in a
shutdown mode by setting LOW the pin ENABLE. On the
other hand the device enters automatically in a shutdown
mode when VDD becomes lower than 1.0 V typically.
ESD Protection
The NCN4557 CRD interface features an Human Body
Model ESD voltage protection in excess of 8 kV for all the
CRD
pins
(CRD_IOA
&
B,
CRD_CLKA
&
B,
CRD_RSTA & B, CRD_VCCA & B and GND). All the
other pins (microcontroller side) sustain at least 2 kV.
These values are guaranteed for the device in its full
integrity without considering the external capacitors added
to the circuit for a proper operating. Consequently in the
operating conditions it is able to sustain much more than
8 kV on its CRD pins making it perfectly protected against
electrostatic discharge well over the Human Body Model
ESD voltages required by the ISO7816 standard (4 kV).
Printed Circuit Board Layout
Careful layout routing will be applied to achieve a good
and efficient operating of the device in its mobile or
portable environment and fully exploit its performance.
The bypass capacitors have to be connected as close as
possible to the device pins (CRD_VCCA and B, VDD or
VBAT) in order to reduce as much as possible parasitic
behaviors (ripple and noise). It is recommended to use
ceramic capacitors.
The exposed pad of the QFN16 package will be
connected to the ground. A relatively large ground plane is
recommended.
ORDERING INFORMATION
Device
Package
Shipping
NCN4557MTG
QFN16
(PbFree)
123 Units / Rail
NCN4557MTR2G
QFN16
(PbFree)
3000 / Tape & Reel
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
相关PDF资料 |
PDF描述 |
|---|---|
| NCN6000DTBR2G | IC INTERFACE SMART CARD 20TSSOP |
| NCN6001DTBR2 | IC INTERFACE SMART CARD 20TSSOP |
| NCN6004AFTBR2G | IC INTERFACE SAM/SIM DUAL 48TQFP |
| NCN6804MNR2G | IC SMART CARD DUAL W/SPI 32-QFN |
| NCN7200MTTWG | IC MUX/DEMUX OCTAL 1X2 42WQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| NCN4557MTR2G | 功能描述:转换 - 电压电平 ANA DUAL SMART CARD INT RoHS:否 制造商:Micrel 类型:CML/LVDS/LVPECL to LVCMOS/LVTTL 传播延迟时间:1.9 ns 电源电流:14 mA 电源电压-最大:3.6 V 电源电压-最小:3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MLF-8 |
| NCN-4-8-2 | 制造商:z*INACTIVE* NATIONAL 功能描述: |
| NCN49597 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Power Line Carrier Modem |
| NCN49597ID11EVB | 制造商:ON Semiconductor 功能描述:EVAL BOARD - Bulk |
| NCN49597MNG | 功能描述:通信集成电路 - 若干 9.6 KBDS FLEX PLC MODEM RoHS:否 制造商:Maxim Integrated 类型:Transport Devices 封装 / 箱体:TECSBGA-256 数据速率:100 Mbps 电源电压-最大:1.89 V, 3.465 V 电源电压-最小:1.71 V, 3.135 V 电源电流:50 mA, 225 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。