OMO ElectronicOMO Electronic
Expand menu
0 Cart

DS8005-RJX+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
General Description
The DS8005 dual smart card interface is a low-cost,
dual analog front-end for an IC card reader interface
that needs to communicate with two smart cards in a
mutually exclusive fashion. The analog interface is
designed for use in ISO 7816, EMV
®
, and B-CAS appli-
cations. The device is functionally similar to two
DS8024s with external multiplexing to select the active
interface, but also includes low power and 1.8V card
support. Additionally, the device is designed for appli-
cations where the C4/C8 (AUX1/AUX2) contacts are not
required on either card interface.
The device is provided in a 28-pin SO package. The
pinout is backwards compatible with the DS8313,
allowing applications to use the same footprint and
PCB for applications that communicate with either one
or two smart cards.
The device is designed to be used with microcon-
trollers that contain an ISO 7816 UART, or have the
bandwidth to run this protocol in software by bit-bang-
ing IO ports. If the microcontroller does not have the
capability of running the ISO 7816 UART, the DS8007 is
the more appropriate product selection.
Applications
Set-Top Box Conditional Access
Telecommunications
Pay Television
Access Control
Financial Terminals
Features
♦ Analog Interface and Level Shifting for IC Card
Communication
♦ ±8kV (min) ESD (HBM) Protection on Card Interfaces
♦ Ultra-Low Stop-Mode Current, Less than 10nA
Typical
♦ Internal IC Card Supply-Voltage Generation
5.0V ±5%, 80mA (max)
3.0V ±8%, 65mA (max)
1.8V ±10%, 30mA (max)
♦ Automatic Card Activation and Deactivation
Controlled by Dedicated Internal Sequencer
♦ I/O Lines from Host Directly Level Shifted for
Smart Card Communication
♦ Flexible Card Clock Generation, Supporting
External Crystal Frequency Divided by 1, 2, 4, or 8
♦ High-Current, Short-Circuit and High-Temperature
Protection
♦ Low Active-Mode Current
♦ Internal Multiplexing Allows One ISO 7816 UART
Implementation to Control Two Smart Card
Sockets
DS8005
Smart Card Interface
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
19-5257; Rev 0; 4/10
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
PART TEMP RANGE PIN-PACKAGE
DS8005-RRX+ -40°C to +85°C 28 SO
+
Denotes a lead(Pb)-free/RoHS-compliant package.
Typical Application Circuit appears at end of data sheet.
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be
simultaneously available through various sales channels. For information about device errata, go to: www.maxim-ic.com/errata
.
EMV is a registered trademark of EMVCo LLC.
Selector Guide
PART
CARD VOLTAGES
SUPPORTED
LOW STOP-MODE
POWER
LOW ACTIVE-
MODE POWER
PRES_ POLARITY V
DDA
INPUTS
DS8005-RRX+ 1.8V, 3V, 5V Yes Yes Positive 2
DS8005
Smart Card Interface
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED DC OPERATING CONDITIONS
(V
DD
= +3.3V, V
DDA
= +5.0V, T
A
= +25°C, unless otherwise noted. All specifications apply to the device, unless otherwise noted in
the CONDITIONS column.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Voltage Range on V
DD
Relative to GND ...............-0.5V to +6.5V
Voltage Range on V
DDA
Relative to GND .............-0.5V to +6.5V
Voltage Range on CLKA, RSTA, I/OA ......-0.5V to (V
CCA
+ 0.5V)
Voltage Range on CLKB, RSTB, I/OB ......-0.5V to (V
CCB
+ 0.5V)
Voltage Range on All Other Pins
Relative to GND.......................................-0.5V to (V
DD
+ 0.5V)
Maximum Junction Temperature .....................................+125°C
Maximum Power Dissipation Range (T
A
= -25°C to +85°C)..700mW
Storage Temperature Range ............................-55°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER SUPPLY
Digital Supply Voltage V
DD
2.7 6.0 V
Card Voltage-Generator Supply Voltage V
DDA
Must be V
DD
4.75 6.0 V
V
TH2
Threshold voltage (falling) 2.20 2.45 2.65 V
Reset Voltage Thresholds
V
HYS2
Hysteresis 50 100 200 mV
CURRENT CONSUMPTION
Active V
DD
Current 5V Cards
(Including 80mA Draw from 5V Card)
I
DD_50V
I
CC
= 80mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V
80.75 85 mA
Active V
DD
Current 5V Cards (Current
Consumed by Device Only)
I
DD_IC
I
CC
= 80mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V (Note 2)
0.75 5 mA
Active V
DD
Current 3V Cards
(Including 65mA Draw from 3V Card)
I
DD_30V
I
CC
= 65mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V
65.75 70 mA
Active V
DD
Current 3V Cards (Current
Consumed by Device Only)
I
DD_IC
I
CC
= 65mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V (Note 2)
0.75 5 mA
Active V
DD
Current 1.8V Cards
(Including 30mA Draw from 1.8V Card)
I
DD_18V
I
CC
= 30mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V
30.75 40 mA
Active V
DD
Current 1.8V Cards (Current
Consumed by Device Only)
I
DD_IC
I
CC
= 30mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V (Note 2)
0.75 5 mA
Inactive-Mode Current I
DD
Card inactive, active-high PRES_,
device not in stop mode
50 400 μA
Stop-Mode Current I
DD_STOP
Device in ultra-low-power stop
mode (CMDVCC, 5V/3V, and 1_8V
set to logic 1) (Note 3)
0.01 2 μA
DS8005
Smart Card Interface
_______________________________________________________________________________________ 3
RECOMMENDED DC OPERATING CONDITIONS (continued)
(V
DD
= +3.3V, V
DDA
= +5.0V, T
A
= +25°C, unless otherwise noted. All specifications apply to the device, unless otherwise noted in
the CONDITIONS column.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
CLOCK SOURCE
Crystal Frequency f
XTAL
External crystal (Note 1) 0 20 MHz
f
XTAL1
(Note 1) 0 20 MHz
V
IL_XTAL1
Low-level input on XTAL1 -0.3
0.3 x
V
DD
XTAL1 Operating Conditions
V
IH_XTAL1
High-level input on XTAL1
0.7 x
V
DD
V
DD
+
0.3
V
External Capacitance for Crystal
C
XTAL1
,
C
XTAL2
15 pF
Internal Oscillator f
INT
2.2 2.7 3.4 MHz
SHUTDOWN TEMPERATURE
Shutdown Temperature T
SD
+150 °C
RSTA AND RSTB PINS
Output Low Voltage V
OL_RST1
I
OL_RST
= 1mA 0.3 V
Card-Inactive Mode
Output Current I
OL_RST1
V
OL_RST
= 0V -1 mA
Output Low Voltage V
OL_RST2
I
OL_RST
= 200μA 0.3 V
Output High
Voltage
V
OH_RST2
I
OH_RST
= -200μA
V
CC
-
0.5
V
Rise Time t
R_RST
C
L
= 30pF (Note 1) 0.1 μs
Fall Time t
F_RST
C
L
= 30pF (Note 1) 0.1 μs
Current Limitation I
RST(LIMIT)
-20 +20 mA
Card-Active Mode
RSTIN to RST Delay t
D(RSTIN-RST)
2 μs
CLKA AND CLKB PINS
Output Low Voltage V
OL_CLK1
I
OLCLK
= 1mA 0.3 V
Card-Inactive Mode
Output Current I
OL_CLK1
V
OLCLK
= 0V -1 mA
Output Low Voltage V
OL_CLK2
I
OLCLK
= 200μA 0.3 V
Output High
Voltage
V
OH_CLK2
I
OHCLK
= -200μA
V
CC
-
0.5
V
Rise Time t
R_CLK
C
L
= 30pF (Notes 1, 4) 8 ns
Fall Time t
F_CLK
C
L
= 30pF (Notes 1, 4) 8 ns
Current Limitation I
CLK(LIMIT)
-75 +75 mA
Clock Frequency f
CLK
Operational 0 10 MHz
Duty Factor C
L
= 30pF 45 55 %
Card-Active Mode
Slew Rate SR C
L
= 30pF (Note 1) 0.2 V/ns
V
CCA
AND V
CCB
PINS
Output Low Voltage V
CC1
I
CC
= 1mA 0.3 V
Card-Inactive Mode
Output Current I
CC1
V
CC
= 0V 0 -1 mA
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

DS8005-RJX+

Mfr. #:
Buy DS8005-RJX+
Manufacturer:
Maxim Integrated
Description:
I/O Controller Interface IC DUAL SMARTCARD AFE
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet