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DS8023-RRX+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
DS8023
Smart Card Interface
________________________________________________________________
Maxim Integrated Products
1
Rev 0; 8/08
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.
General Description
The DS8023 smart card interface IC is a low-cost, low-
power, analog front-end for a smart card reader designed
for all ISO 7816, EMV*, and GSM11-11 applications. The
DS8023 supports 5V, 3V, and 1.8V smart cards, and pro-
vides an option for ultra-low stop-mode power consump-
tion. The DS8023 is available in 28-pin TSSOP and SO
packages, and can often be used as a replacement for
the TDA8024 with little or no application changes.
The DS8023 is designed to interface between a system
microcontroller and the smart card interface, providing
all power supply, protection, and level shifting required
for IC card applications.
Applications
Set-Top Box Conditional Access
Access Control
Banking Applications
POS Terminals
Debit/Credit Payment Terminals
PIN Pads
Automated Teller Machines
Telecommunications
Pay/Premium Television
Features
♦ Analog Interface and Level Shifting for IC Card
Communication
♦ ±8kV (min) ESD (IEC) Protection on Card Interface
Pins
♦ Ultra-Low Stop-Mode Current, Less Than 10nA (typ)
♦ 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
Ordering Information
Note: Contact the factory for availability of other variants and
package options.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
*
EMV is a trademark owned by EMVCo LLC. EMV Level 1 library and hardware reference design available. Contact factory for details.
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
.
PART TEMP RANGE PIN-PACKAGE
DS8023-RJX+ -40°C to +85°C 28 TSSOP
DS8023-RRX+ -40°C to +85°C 28 SO
Selector Guide appears at end of data sheet.
PGND
28
27
26
25
24
23
22
AUX2IN
AUX1IN
I/OIN
XTAL2
TOP VIEW
DS8023
XTAL1
OFF
GND
21 V
DD
20 RSTIN
19 CMDVCC
18 1_8V
17 V
CC
16 RST
15 CLK
5V/3V
CLKDIV2
CLKDIV1
CP1
V
DDA
V
UP
PRES
PRES
I/O
AUX2
AUX1
4
1
2
3
5
6
7
8
9
10
11
12
13
14CGND
CP2
SO/TSSOP
Pin Configuration
DS8023
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.) (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 PGND ...........-0.5V to +6.5V
Voltage Range on CP1, CP2, and V
UP
Relative to PGND...............................................-0.5V to +7.5V
Voltage Range on All Other Pins
Relative to GND......................................-0.5V to (V
DD
+ 0.5V)
Maximum Junction Temperature .....................................+125°C
Maximum Power Dissipation (T
A
= -40°C to +85°C) .......700mW
Storage Temperature Range .............................-55°C to +150°C
Soldering Temperature.........Refer to the IPC/JEDEC J-STD-020
Specification.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER SUPPLY
Digital Supply Voltage V
DD
2.7 6.0 V
V
CC
= 5V, |I
CC
| < 80mA 4.0 6.0
Card-Voltage-Generator Supply Voltage V
DDA
V
CC
= 5V, |I
CC
| < 30mA 3.0 6.0
V
V
TH2
Threshold voltage (falling) 2.30 2.45 2.60 V
Reset Voltage Thresholds
V
HYS2
Hysteresis 50 100 150 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
215 mA
Active V
DD
Current 5V Cards
(Current Consumed by DS8023 Only)
I
DD_IC
I
CC
= 80mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V (Note 2)
135 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
100 mA
Active V
DD
Current 3V Cards
(Current Consumed by DS8023 Only)
I
DD_IC
I
CC
= 65mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V (Note 2)
35 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
70 mA
Active V
DD
Current 1.8V Cards
(Current Consumed by DS8023 Only)
I
DD_IC
I
CC
= 30mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V (Note 2)
35 mA
Inactive-Mode Current I
DD
Card inactive 500 μA
Stop-Mode Current I
DD_STOP
DS8023 in ultra-low-power stop
mode (Note 3)
10 nA
CLOCK SOURCE
Crystal Frequency f
XTAL
External crystal 0 20 MHz
f
XTAL1
0 20 MHz
V
IL_XTAL1
-0.3
0.3 x
V
DD
XTAL1 Operating Conditions
V
IH_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
2.7 MHz
DS8023
Smart Card Interface
_______________________________________________________________________________________ 3
RECOMMENDED DC OPERATING CONDITIONS (continued)
(V
DD
= +3.3V, V
DDA
= +5.0V, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SHUTDOWN TEMPERATURE
Shutdown Temperature T
SD
+150 °C
RST PIN
Output Low Voltage V
OL_RST1
I
OL_RST
= 1mA 0 0.3 V
Card-Inactive Mode
Output Current I
OL_RST1
V
O_LRST
= 0V 0 -1 mA
Output Low Voltage V
OL_RST2
I
OL_RST
= 200μA 0 0.3 V
Output High
Voltage
V
OH_RST2
I
OH_RST
= -200μA
V
CC
-
0.5
V
CC
V
Rise Time t
R_RST
C
L
= 30pF 0.1 μs
Fall Time t
F_RST
C
L
= 30pF 0.1 μs
Shutdown Current
Threshold
I
RST(SD)
-20 mA
Current Limitation I
RST(LIMIT)
-20 +20 mA
Card-Active Mode
RSTIN to RST Delay t
D(RSTIN-RST)
2 μs
CLK PIN
Output Low Voltage V
OL_CLK1
I
OLCLK
= 1mA 0 0.3 V
Card-Inactive Mode
Output Current I
OL_CLK1
V
OLCLK
= 0V 0 -1 mA
Output Low Voltage V
OL_CLK2
I
OLCLK
= 200μA 0 0.3 V
Output High
Voltage
V
OH_CLK2
I
OHCLK
= -200μA
V
CC
-
0.5
V
CC
V
Rise Time t
R_CLK
C
L
= 30pF (Note 4) 8 ns
Fall Time t
F_CLK
C
L
= 30pF (Note 4) 8 ns
Current Limitation I
CLK(LIMIT)
-70 +70 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 0.2 V/ns
V
CC
PIN
Output Low Voltage V
CC1
I
CC
= 1mA 0 0.3 V
Card-Inactive Mode
Output Current I
CC1
V
CC
= 0V 0 -1 mA
I
CC(5V)
< 80mA 4.75 5.00 5.25
I
CC(3V)
< 65mA 2.78 3.00 3.22
I
CC(1.8V)
< 30mA 1.65 1.8 1.95
5V card: current pulses of 40nC
with I < 200mA, t < 400ns,
f < 20MHz
4.6 5.4
3V card: current pulses of 24nC
with I < 200mA, t < 400ns,
f < 20MHz
2.75 3.25
Card-Active Mode Output Low Voltage V
CC2
1.8V card: current pulses of 12nC
with I < 200mA, t < 400ns,
f < 20MHz
1.62 1.98
V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

DS8023-RRX+

Mfr. #:
Buy DS8023-RRX+
Manufacturer:
Maxim Integrated
Description:
Interface - Specialized Smart Card Interface
Lifecycle:
New from this manufacturer.
Delivery:
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