73S8024RN Interface Datasheet

73S8024RN Datasheet, PDF, Equivalent


Part Number

73S8024RN

Description

Low Cost Smart Card Interface

Manufacture

Teridian Semiconductor

Total Page 27 Pages
Datasheet
Download 73S8024RN Datasheet


73S8024RN
www.DataSheet4U.com
73S8024RN
Low Cost Smart Card Interface
DATA SHEET
May 2010
DESCRIPTION
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.
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
A 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
Rev. 1.9
© 2009 Teridian Semiconductor Corporation
1

73S8024RN
73S8024RN Data Sheet
FUNCTIONAL DIAGRAM
VDD
21 [20] {12}
VDDF_ADJ
18 [17]
NC
5 [2,9,16,25,32]
VPC
6 [3] {2}
6
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{13} [21] 22
GND
{10} [18] 19
CMDVCC
{11} [19] 20
RSTIN
{20} [31] 3
5V/3V
{14} [22] 23
OFF
{18} [29] 1
CLKDIV1
{19} [30] 2
CLKDIV2
{15} [23] 24
XTALIN
{16} [24] 25
XTALOUT
[4] 7
CLKSTOP
[5] 8
CLKLEV
{17} [26] 26
I/OUC[27]
AUX1UC 27
[28]
AUX2UC 28
DIGITAL POWER SUPPLY
VDD VOLTAGE SUPERVISOR
VOLTAGE REFERENCE
VPC FAULT
VDD FAULT
VCC FAULT
ICC FAULT
DIGITAL
CIRCUITRY
&
FAULT LOGIC
Int_Clk
R-C
OSC.
LDO
REGULATOR
&
VOLTAGE
SUPERVISORS
ICC RESET
BUFFER
XTAL
OSC
CLOCK
GENERATION
ISO-7816
SEQUENCER
ICC CLOCK
BUFFER
TEMP FAULT
OVER
TEMP
ICC I/O BUFFERS
4 [1] {1}
GND
14 [12] {6}
GND
17 [15] {9}
VCC
16 [14] {8}
RST
15 [13] {7}
CLK
10 [7] {4}
PRES
9 [6] {3}
PRES
11 [8] {5}
I/O
13 [11]
AUX1
12 [10]
AUX2
Pin numbers reference the 28SO package.
[Pin numbers] reference the 32QFN package.
{Pin numbers} reference the 20QFN package.
Figure 1: 73S8024RN Block Diagram
2 Rev. 1.9


Features www.DataSheet4U.com 73S8024RN Low Cost Smart Card Interface DATA SHEET May 201 0 DESCRIPTION The Teridian 73S8024RN is a single smart card (ICC) interface IC that can be controlled by a dedicated control bus. The 73S8024RN has been des igned to provide full electrical compli ance with ISO-7816-3, EMV 4.0 (EMV2000) and NDS specifications. Interfacing wi th the system controller is done throug h a control bus, composed of digital in puts to control the interface, and one interrupt output to inform the system c ontroller of the card presence and faul ts. The card clock can be generated by an on-chip oscillator using an external crystal or by connection to a clock si gnal. The 73S8024RN incorporates an ISO -7816-3 activation/deactivation sequenc er that controls the card signals. Leve l-shifters drive the card signals with the selected card voltage (3V or 5V), c oming from an internal Low Drop-Out (LD O) voltage regulator. This LDO regulato r is powered by a dedicated power supply input VPC. Digital cir.
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