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73S8010C Datasheet, PDF (1/27 Pages) Teridian Semiconductor Corporation – Smart Card Interface | |||
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Simplifying System Integrationâ¢
73S8010C
Smart Card Interface
DATA SHEET
April 2009
DESCRIPTION
The Teridian 73S8010C is a single smart card
interface IC. It provides full electrical compliance
with ISO-7816-3 and EMV 4.0 specifications.
Interfacing with the host is done through the two-wire
I2C bus. Data exchange with the card is managed
from the system controller using the I/O line (and
eventually the auxiliary I/O lines).
An on-chip oscillator using an external crystal, or
connection to a clock signal coming from the
system controller can generate the card clock
signal.
The 73S8010C IC 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 DC-DC converter.
With its high-efficiency DC-DC converter, the
Teridian 73S8010C is a cost-effective solution for
any smart card reader application to be powered
from a single 2.7 V to 3.6 V power supply.
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 VDD (digital
power supply), a VCC (card power supply), a card
over-current, or an over-heating fault.
ADVANTAGES
⢠Single smart card interface
⢠The inductor-based DC-DC converter provides
higher current and efficiency than the usual
charge-pump capacitor-based converters
ï Ideal for battery-powered applications
ï Suitable for high current cards and
SAMs: (100 mA max)
⢠Power down mode: 2 µA typical
⢠Small Format (5x5mm) 32-QFN package option
FEATURES
⢠Card Interface:
ï§ Complies with ISO-7816-3 and EMV 4.0
ï§ A DC-DC Converter provides 3V / 5V to the
card from an external power supply input
ï§ High-efficiency converter: > 80% @ VDD= 3.3 V,
VCC = 5 V and ICC = 65 mA
ï§ Up to 100 mA supplied to the card
ï§ ISO-7816-3 Activation / Deactivation sequencer
with emergency automated deactivation on
card removal or fault detected by the protection
circuitry
ï§ Protection include 2 voltage supervisors that
detect voltage drops on card VCC and VDD
power supplies
ï§ The VDD voltage supervisor threshold value
can be externally adjusted
ï§ True over-current detection (150 mA max.)
ï§ 1 card detection input
ï§ Auxiliary I/O lines, for C4 / C8 contact signals
⢠Host Interface:
ï§ Fast mode, 400 kbps I2C slave bus
ï§ 8 possible devices in parallel
ï§ One control register and one status register
ï§ Interrupt output to the host for fault
detection
ï§ Crystal oscillator or host clock, up to 27 MHz
⢠Power Supply:
ï§ VDD: 2.7 V to 3.6 V
⢠6 kV ESD Protection on the card interface
⢠Package: SO28 or 32QFN
APPLICATIONS
⢠Set-Top-Boxes, DVD / HDD Recorders:
Conditional Access and Pay-per-View slots
⢠Point of Sales and Transaction Terminals
⢠EMV slots in cell phones and PDAs
Rev. 1.5
© 2009 Teridian Semiconductor Corporation
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