73S8014RN Interface Datasheet

73S8014RN Datasheet, PDF, Equivalent


Part Number

73S8014RN

Description

Smart Card Interface

Manufacture

Teridian Semiconductor

Total Page 28 Pages
Datasheet
Download 73S8014RN Datasheet


73S8014RN
Simplifying System Integration™
www.DataSheet4U.com
73S8014RN
Smart Card Interface
DATA SHEET
December 2008
DESCRIPTION
The Teridian 73S8014RN is a single smart card (ICC) interface
circuit, firmware compatible with 8024-type devices for
configurations where only asynchronous cards must be
supported. It is derived from the 73S8024RN industry-
standard electrical interface. The 73S8014RN has been
optimized to match most of the typical Set-Top Box / A/V
Conditional Access applications. Optimization essentially
involved a smaller pin-count and support for single I/O.
The 73S8014RN interfaces with the host processor through the
same bus (digital I/Os) as the 73S8024RN, which is compatible
with any other 8024-type IC. As a result, the 73S8014RN is a
very attractive cost-reduction path from traditional 8024
ICs.
The 73S8014RN has been designed to provide full electrical
compliance with ISO 7816-3, EMV 4.0 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 an externally supplied
clock signal. In addition, the clock divider provides divisor
values of divide by 1, 2, 4 and 6 that are compatible with NDS
requirements.
The 73S8014RN 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 powered
separately by a digital power supply VDD. With its embedded
LDO regulator, the 73S8014RN is a cost-effective solution for
any application where a 5V (typically -5% +10%) power supply
is available.
Emergency card deactivation is initiated upon card extraction
or upon any fault detected by the protection circuitry. The fault
can be a card over-current, VCC undervoltage or power supply
fault (VDD). The card over-current circuitry is a true current
detection function, as opposed to VCC voltage drop detection,
as usually implemented in non-Teridian 8024 interface ICs.
The VDD voltage fault has a threshold voltage that can be
adjusted with an external 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
General purpose smart card readers
ADVANTAGES
NDS compliant
All NDS frequency divider rates of 4.5, 6.75 and
13.5MHz are supported from a 27MHz clock source
Same advantages as the Teridian 73S80xxR family:
ƒ Card VCC generated by an LDO regulator
ƒ Very low power dissipation (saves up to 1/2W)
ƒ Fewer external components are required
ƒ Better noise performance
True card over-current detection
Firmware compatibility with all 8024 ICs
Small format 20SO package
FEATURES
Card Interface:
ƒ Complies with ISO 7816-3, EMV 4.0 and NDS
ƒ 73S8014RN device supports 3V / 5V cards up to 65mA
ƒ ISO 7816-3 Activation / Deactivation sequencer
ƒ Automated deactivation upon hardware fault (i.e. upon
drop on VDD power supply or card overcurrent)
ƒ The VDD voltage supervisor threshold value (fault) can
be externally adjusted
ƒ Over-current detection 130mA max
ƒ Card CLK clock frequency up to 20MHz
System Controller Interface:
ƒ 3 Digital inputs control the card activation / deactivation,
card reset and card voltage
ƒ 2 Digital inputs control the card clock frequency
ƒ 1 Digital output, interrupt to the system controller,
reports to the host the card presence and faults
ƒ Crystal oscillator or host clock, up to 27MHz
Regulator Power Supply:
ƒ 4.75V to 5.5V (EMV 4.0)
ƒ 4.85V to 5.5V (NDS)
Digital Interfacing: 2.7V to 5.5V
6kV ESD protection on the card interface
Package: SO 20-pin
RoHS compliant (6/6) lead-free package
Rev. 1.0
© 2008 Teridian Semiconductor Corporation
1

73S8014RN
73S8014RN Data Sheet
FUNCTIONAL DIAGRAM
VDD
GND TEST
DwwSw_.8D0at1aS4hReeNt4U_.0co1m4
VPC
VDDF_ADJ
CMDVCC
RSTIN
5V/#V
TEST
OFF
PRES
CKDIV1
CKDIV2
XTALIN
XTALOUT
IOUC
vdd circuits
INTERNAL POWER SUPPLY
VOLTAGE REFERENCE
VPD - internal supply
CONTROLLER
AND
REGISTERS
VCC FAULT
VDD FAULT
bias currents
vref
1.5MHz
R-C
OSC.
LDO
REGULATOR
FAULT LOGIC
XTAL
OSC
CLOCK
GENERATION
CLOCK
SC
SEQUENCER
RESET
BUFFER
CLOCK
BUFFER
vdd circuits
SMART CARD I/O BUFFER
VCC
RST
CLK
I/O
vcc circuits
73S8014RN
Figure 1: 73S8014RN Block Diagram
2 Rev. 1.0


Features www.DataSheet4U.com 73S8014RN Smart Car d Interface Simplifying System Integrat ion™ DATA SHEET December 2008 DESCR IPTION The Teridian 73S8014RN is a sing le smart card (ICC) interface circuit, firmware compatible with 8024-type devi ces for configurations where only async hronous cards must be supported. It is derived from the 73S8024RN industrystan dard electrical interface. The 73S8014R N has been optimized to match most of t he typical Set-Top Box / A/V Conditiona l Access applications. Optimization ess entially involved a smaller pin-count a nd support for single I/O. The 73S8014R N interfaces with the host processor th rough the same bus (digital I/Os) as th e 73S8024RN, which is compatible with a ny other 8024-type IC. As a result, the 73S8014RN is a very attractive cost-re duction path from traditional 8024 ICs. The 73S8014RN has been designed to pro vide full electrical compliance with IS O 7816-3, EMV 4.0 and NDS specification s. Interfacing with the system controller is done through a contr.
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