73S8024RN-ILSLASHF datasheet(1/27 Pages) MAXIM

部品番号	73S8024RN-IL/F

部品情報	Low-Cost Smart Card Interface

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メーカー	MAXIM [Maxim Integrated Products]

ホームページ	https://www.maximintegrated.com/en.html

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73S8024RN

Low-Cost Smart Card Interface

DATA SHEET

Rev. 2

1

19-5404; Rev 2; 6/12

DESCRIPTION

The 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.

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.

The card clock can be generated by an on-chip oscillator

using an external crystal or by connection to a clock

signal.

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

power supply VDD.

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*.

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.

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.

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.

APPLICATIONS

•

Set-Top-Box Conditional Access and Pay-per-

View

•

Point of Sales and Transaction Terminals

•

Control Access and Identification

* Pins/functions not available on 20-pin QFN package.

** User VDD_FLT threshold configuration not available on

20-pin QFN package.

ADVANTAGES

•

Traditional step-up converter is replaced by a LDO

regulator:



Greatly reduced power dissipation



Fewer external components are required



Better noise performance



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

FEATURES

•

Card Interface:



Complies with ISO 7816-3, EMV 4.0, and NDS



An LDO voltage regulator provides 3V / 5V to the

card from an external power supply input



Provides at least 90mA to the card



ISO 7816-3 Activation / Deactivation sequencer with

emergency automated deactivation on card removal

or fault detected by the protection circuitry



Protection includes 3 voltage supervisors that detect

voltage drops on VCC (card), VDD (digital)**, and VPC

(regulator) power supplies



The VDD voltage supervisor threshold value can be

externally adjusted**



Over-current detection 150mA max



Card clock stop high or low*



2 card detection inputs, 1 for each possible user

polarity



Auxiliary I/O lines, for C4 / C8 contact signals*



Card CLK clock frequency up to 20MHz

•

System Controller Interface:



3 Digital inputs control the card activation /

deactivation, card reset and card voltage



4 Digital inputs control the card clock (division rate

and card clock stop modes)



1 Digital output, interrupt to the system controller,

allows the system controller to monitor the card

presence and faults.



Crystal oscillator or host clock, up to 27MHz

•

Regulator Power Supply:



4.75V to 5.5V (EMV 4.0)



4.85V to 5.5V (NDS)

•

Digital Interfacing: 2.7V to 5.5V

• ±

6kV ESD Protection on the card interface

•

Package: SO28, 20QFN or 32QFN

同様の部品番号 - 73S8024RN-IL/F

メーカー	部品番号	データシート	部品情報
Teridian Semiconductor ...	73S8024RN-IL/F	383Kb / 27P	Low Cost Smart Card Interface

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