73S8010R
Low Cost Smart Card Interface
Simplifying System Integration™
DATA SHEET
DS_8010R_022 August 2009
Rev. 1.6 © 2009 Teridian Semiconductor Corporation 1
DESCRIPTION
The Teridian 73S8010R is a single smart card
interface IC that provides 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 (3 V or 5 V), 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 5 V (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 detect
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.
APPLICATIONS
• Set-Top-Box Conditional Access and
Pay-per-View
• Point of Sales & Transaction Terminals
• Control Access & Identification
• Multiple card and SAM reader configurations
ADVANTAGES
• Single smart card interface
• IC firmware compatible with TDA8020
• Traditional step-up converter is replaced by
an LDO regulator
Greatly reduced power dissipation
Fewer external components are required
Better noise performance
High current capability (90 mA supplied to
the card)
• Small format (5x5x0.8 mm) QFN32 package option
• True card over-current detection
FEATURES
• Card Interface
• Complies with ISO-7816-3 and EMV 4.0
• An LDO voltage regulator provides 3 V / 5 V to
the card from an external power supply input
• 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 V
CC
card and
on power supplies V
DD
and V
PC
• Over-current detection 150 mA max
• 1 card detection input
• Auxiliary I/O lines, for C4 / C8 contact
signals
• Host Interface
• Fast mode, 400 kbps 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 27 MHz
• 6 kV ESD protection on the card interface
• SO28 or QFN32 package
