73S8010R
Low Cost Smart Card Interface
DATA SHEET
January 2008
DESCRIPTION
The TERIDIAN 73S8010R is a single smart card interface
IC. The TERIDIAN 73S8010R has been designed to
provide full electrical compliance with ISO-7816-3 and
EMV 4.0 (EMV2000) specifications.
Interfacing with the host is done through the two-wire I
2
C
bus, and one interrupt output to inform the system
controller of the card presence and faults.
The card clock signal can be generated by an on-chip
oscillator using an external crystal, or by connection to a
clock signal.
The TERIDIAN 73S8010R 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 V
PC
. Digital
circuitry is separately powered by a digital power supply
V
DD
.
With its embedded LDO regulator, the TERIDIAN
73S8010R 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 V
DD
(digital power supply), a V
PC
(regulator power supply), a
V
CC
(card power supply) or an over-heating fault.
The card over-current circuitry is a true current detection
function, as opposed to V
CC
voltage drop detection, as
usually implemented in ICC interface ICs.
The V
DD
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 V
DD
voltage threshold value. It can be used, for instance, to
match the system controller operating voltage range.
ADVANTAGES
•
•
•
Single smart card interface
IC firmware compatible with TDA8020
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)
•
•
Small format (5x5x0.8mm) QFN32 package option
True card over-current detection
FEATURES
•
Card Interface:
Complies with ISO-7816-3 and EMV 4.0
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
detects voltage drops on V
CC
card and on power
supplies V
DD
and V
PC
The V
DD
voltage supervisor threshold value can be
externally adjusted
Over-current detection 150mA max.
1 card detection input
Auxiliary I/O lines, for C4 / C8 contact signals
CLK signal up to 20MHz
Host Interface:
Fast mode, 400kbps I
2
C slave bus
8 possible devices in parallel
One control register and one status register
Interrupt output to the host for fault detection
Crystal oscillator or host clock, up to 27MHz
Power Supply:
V
PC
: 4.75V to 5.5V
V
DD
: 2.7V to 5.5V
6kV ESD Protection on the card interface
Package: SO28 or QFN32
•
APPLICATIONS
•
•
•
•
Set-Top-Box Conditional Access and Pay-per-
View
Point of Sales & Transaction Terminals
Control Access & Identification
Multiple card and SAM reader configurations
•
•
•
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©
2005-2008 TERIDIAN Semiconductor Corporation
Rev 1.5
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
