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参数资料
| 型号： | DS8113-JNG+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/17页 |
| 文件大小： | 0K |
| 描述： | IC INTERFACE SMART CARD 28-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 智能卡 |
| 接口： | 模拟 |
| 电源电压： | 2.7 V ~ 6 V |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
DS8113
Detailed Description
The DS8113 is an analog front-end for communicating
with 1.8V, 3V, and 5V smart cards. It is a dual input-
voltage device, requiring one supply to match that of a
host microcontroller and a separate +5V supply for
generating correct smart card supply voltages. The
DS8113 translates all communication lines to the cor-
rect voltage level and provides power for smart card
operation. It is a low-power device, consuming very lit-
tle current in active-mode operation (during a smart
card communication session), and is suitable for use in
battery-powered devices such as laptops and PDAs,
consuming only 10nA in stop mode. See Figure 1 for a
functional diagram.
Power Supply
The DS8113 is a dual-supply device. The supply pins
for the device are VDD, GND, VDDA, and PGND. VDD
should be in the range of 2.7V to 6.0V, and is the sup-
ply for signals that interface with the host controller. It
should, therefore, be the same supply as used by the
host controller. All smart card contacts remain inactive
during power-on or power-off. The internal circuits are
kept in the reset state until VDD reaches VTH2 + VHYS2
and for the duration of the internal power-on reset
pulse, tW. A deactivation sequence is executed when
VDD falls below VTH2.
An internal regulator generates the 1.8V, 3V, or 5V card
supply voltage (VCC). The regulator should be supplied
separately by VDDA and PGND. VDDA should be con-
nected to a minimum 5.0V supply in order to provide
the correct supply voltage for 5V smart cards.
Voltage Supervisor
The voltage supervisor monitors the VDD supply. A
220s reset pulse (tW) is used internally to keep the
device inactive during power-on or power-off of the
VDD supply. See Figure 2.
The DS8113 card interface remains inactive no matter
the levels on the command lines until duration tW after
VDD has reached a level higher than VTH2 + VHYS2.
When VDD falls below VTH2, the DS8113 executes a
card deactivation sequence if its card interface is
active.
Smart Card Interface
8
_______________________________________________________________________________________
TEMPERATURE
MONITOR
CARD VOLTAGE
GENERATOR
CLOCK
GENERATION
CONTROL
SEQUENCER
POWER-SUPPLY
SUPERVISOR
I/O TRANSCEIVER
VDD
GND
VDDA
PGND
CP1
CP2
VUP
VCC
XTAL1
XTAL2
CLKDIV1
CLKDIV2
1_8V
5V/3V
CMDVCC
RSTIN
CGND
RST
CLK
I/O
AUX1
AUX2
PRES
OFF
I/OIN
AUX1IN
AUX2IN
DS8113
Figure 1. Functional Diagram
VDD
ALARM
(INTERNAL SIGNAL)
POWER ON
tW
POWER OFF
VTH2 + VHYS2
VTH2
SUPPLY DROPOUT
Figure 2. Voltage Supervisor Behavior
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS8113-KIT | 制造商:Maxim Integrated Products 功能描述:EMV EVALUATION KIT FOR THE DS8113 - Boxed Product (Development Kits) |
| DS8113-RNG+ | 功能描述:接口 - 专用 Smart Card Interface RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| DS8113-RNG+T&R | 制造商:Maxim Integrated Products 功能描述:DS8113 SMART CARD INT 28 SOIC LF T& - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC INTERFACE SMART CARD 28-SOIC |
| DS8113-RNG+T&R | 功能描述:接口 - 专用 Smart Card Interface RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| DS812 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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