73S8014R Interface Datasheet

73S8014R Datasheet, PDF, Equivalent


Part Number

73S8014R

Description

Smart Card Interface

Manufacture

Teridian Semiconductor

Total Page 29 Pages
Datasheet
Download 73S8014R Datasheet


73S8014R
Simplifying System Integration™
www.DataSheet4U.com
73S8014R
Smart Card Interface
DATA SHEET
September 2008
DESCRIPTION
The Teridian 73S8014R 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 73S8014R has been
optimized to match most of the typical Set-Top-Box / A/V
Conditional Access applications. Optimization essentially
involved a smaller pin-count, support for single I/O, and
maximum card current of 65mA (ISO-7816 / EMV
compliance).
The 73S8014R 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
73S8014R is a very attractive cost-reduction path from
traditional 8024 ICs. The 73S8014R has been designed to
provide full electrical compliance with ISO 7816-3 and EMV
4.0 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.
The 73S8014R 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 73S8024RN 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
Same advantages as the Teridian 73S80xxR family:
ƒ VCC card 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 and EMV 4.0
ƒ Supports 3V / 5V cards
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
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

73S8014R
73S8014R Data Sheet
FUNCTIONAL DIAGRAM
VDD
VPC
VDDF_ADJ
CMDVCC
RSTIN
5V/#V
TEST
OFF
CKDIV1
CKDIV2
XTALIN
XTALOUT
IOUC
vdd circuits
INTERNAL POWER SUPPLY
VOLTAGE REFERENCE
VCC FAULT
VDD FAULT
vref
VPD - internal supply
bias currents
CONTROLLER
AND
REGISTERS
1.5MHz
R-C
OSC.
FAULT LOGIC
LDO
REGULATOR
RESET
BUFFER
XTAL
OSC
CLOCK
GENERATION
CLOCK
SC
SEQUENCER
vdd circuits
SMART CARD I/O BUFFER
CLOCK
BUFFER
vcc circuits
GND
Figure 1: 73S8014R Block Diagram
wwDwS.D_a8ta0S1he4eRt4U_.0co1m2
GND
VCC
RST
CLK
VDD CKT
PRES
I/O
2 Rev. 1.0


Features www.DataSheet4U.com 73S8014R Smart Card Interface Simplifying System Integrati on™ DATA SHEET September 2008 DESCR IPTION The Teridian 73S8014R is a singl e smart card (ICC) interface circuit, f irmware compatible with 8024-type devic es for configurations where only asynch ronous cards must be supported. It is d erived from the 73S8024RN industrystand ard electrical interface. The 73S8014R has been optimized to match most of the typical Set-Top-Box / A/V Conditional Access applications. Optimization essen tially involved a smaller pin-count, su pport for single I/O, and maximum card current of 65mA (ISO-7816 / EMV complia nce). The 73S8014R interfaces with the host processor through the same bus (di gital I/Os) as the 73S8024RN, which is compatible with any other 8024-type IC. As a result, the 73S8014R is a very at tractive cost-reduction path from tradi tional 8024 ICs. The 73S8014R has been designed to provide full electrical com pliance with ISO 7816-3 and EMV 4.0 specifications. Interfacing w.
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