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73S8024RN-32IMR PDF预览

73S8024RN-32IMR

更新时间: 2024-02-28 11:02:14
品牌 Logo 应用领域
TERIDIAN 模拟IC信号电路
页数 文件大小 规格书
27页 390K
描述
Analog Circuit, 1 Func, QFN-32

73S8024RN-32IMR 技术参数

生命周期:Transferred包装说明:,
Reach Compliance Code:unknown风险等级:5.84

73S8024RN-32IMR 数据手册

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73S8024RN  
Low Cost Smart Card Interface  
DATA SHEET  
January 2009  
DESCRIPTION  
ADVANTAGES  
The Teridian 73S8024RN is a single smart card (ICC)  
interface IC that can be controlled by a dedicated control  
bus. The 73S8024RN has been designed to provide full  
electrical compliance with ISO-7816-3, EMV 4.0  
(EMV2000) and NDS specifications.  
Traditional step-up converter is replaced by a LDO  
regulator:  
Æ Greatly reduced power dissipation  
Æ Fewer external components are required  
Æ Better noise performance  
Interfacing with the system controller is done through a  
control bus, composed of digital inputs to control the  
interface, and one interrupt output to inform the system  
controller of the card presence and faults.  
Æ High current capability (90mA supplied to the card)  
SO28 package is pin-to-pin compatible with  
industry-standard TDA8004 and TDA8024  
Card clock STOP (high and low) mode  
Small format (4x4x0.85mm) 20QFN package option  
True card over-current detection  
The card clock can be generated by an on-chip oscillator  
using an external crystal or by connection to a clock  
signal.  
FEATURES  
The 73S8024RN incorporates an ISO-7816-3  
activation/deactivation sequencer that controls the card  
signals. Level-shifters drive the card signals with the  
selected card voltage (3V or 5V), coming from an internal  
Low Drop-Out (LDO) voltage regulator. This LDO  
regulator is powered by a dedicated power supply input  
VPC. Digital circuitry is separately powered by a digital  
Card Interface:  
ƒ Complies with ISO-7816-3, EMV 4.0 and NDS  
ƒ A LDO voltage regulator provides 3V / 5V to the card  
from an external power supply input  
ƒ Provides at least 90mA to the card  
power supply VDD  
.
ƒ ISO-7816-3 Activation / Deactivation sequencer with  
emergency automated deactivation on card removal  
or fault detected by the protection circuitry  
With its embedded LDO regulator, the 73S8024RN is a  
cost effective solution for any application where a 5V  
(typically -5% +10%) power supply is available.  
Hardware support for auxiliary I/O lines, C4 / C8 contacts,  
is provided*.  
ƒ Protection includes 3 voltage supervisors that detect  
voltage drops on VCC (card), VDD (digital)**, and VPC  
(regulator) power supplies  
ƒ The VDD voltage supervisor threshold value can be  
externally adjusted**  
Emergency card deactivation is initiated upon card  
extraction or upon any fault generated by the protection  
circuitry. The fault can be a card over-current, a VDD  
(digital power supply)**, a VPC (regulator power supply), a  
VCC (card power supply) or an over-heating fault.  
ƒ Over-current detection 150mA max  
ƒ Card clock stop high or low*  
ƒ 2 card detection inputs, 1 for each possible user  
polarity  
The card over-current circuitry is a true current detection  
function, as opposed to VCC voltage drop detection, as  
usually implemented in ICC interface ICs.  
ƒ Auxiliary I/O lines, for C4 / C8 contact signals*  
ƒ Card CLK clock frequency up to 20MHz  
System Controller Interface:  
The VDD voltage fault has a threshold voltage that can be  
adjusted with an external resistor or resistor network. It  
allows automated card deactivation at a customized VDD  
voltage threshold value. It can be used, for instance, to  
match the system controller operating voltage range.  
ƒ 3 Digital inputs control the card activation /  
deactivation, card reset and card voltage  
ƒ 4 Digital inputs control the card clock (division rate  
and card clock stop modes)  
ƒ 1 Digital output, interrupt to the system controller,  
allows the system controller to monitor the card  
presence and faults.  
APPLICATIONS  
Set-Top-Box Conditional Access and Pay-per-  
View  
ƒ Crystal oscillator or host clock, up to 27MHz  
Point of Sales and Transaction Terminals  
Control Access and Identification  
Regulator Power Supply:  
ƒ
ƒ
4.75V to 5.5V (EMV 4.0)  
4.85V to 5.5V (NDS)  
* Pins/functions not available on 20-pin QFN package.  
** User VDD_FLT threshold configuration not available on  
20-pin QFN package.  
Digital Interfacing: 2.7V to 5.5V  
6kV ESD Protection on the card interface  
Package: SO28, 20QFN or 32QFN  
Rev. 1.8  
© 2009 Teridian Semiconductor Corporation  
1
 

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