Rainbow Electronics DS8024 User Manual
DS8024
Smart Card Interface
________________________________________________________________
Maxim Integrated Products
1
Rev 1; 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 DS8024 smart card interface IC is a low-cost, analog
front-end for a smart card reader, designed for all ISO
7816, EMV*, and GSM11-11 applications. The DS8024 is
a pin-for-pin drop-in replacement for the NXP TDA8024
and is offered in 28-pin TSSOP and SO packages.
Applications requiring support for 1.8V smart cards or
requiring low power should consider the DS8113, which
achieves lower active- and stop-mode power with minimal changes to application hardware and software.
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 Interfaces
♦ Internal IC Card Supply-Voltage Generation:
5.0V ±5%, 80mA (max)
3.0V ±8%, 65mA (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-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
.
Selector Guide appears at end of data sheet.
PGND
28
27
26
25
24
23
22
AUX2IN
AUX1IN
I/OIN
XTAL2
TOP VIEW
DS8024
XTAL1
OFF
GND
21 V
DD
20 RSTIN
19 CMDVCC
18 N.C.
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
PART TEMP RANGE PIN-PACKAGE
DS8024-RJX+ -40°C to +85°C 28 TSSOP
DS8024-RRX+ -40°C to +85°C 28 SO
DS8024
Smart Card Interface
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED DC OPERATING CONDITIONS
(VDD= +3.3V, V
DDA
= +5.0V, TA= +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 VDDRelative 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
= -25°C to +85°C) .......700mW
Storage Temperature Range .............................-55°C to +150°C
Soldering Temperature.........Refer to the IPC/JEDEC J-STD-020
Specification.
POWER SUPPLY
Digital Supply Voltage VDD 2.7 6.0 V
Card Voltage-Generator Supply Voltage V
Reset Voltage Thresholds
CURRENT CONSUMPTION
Active VDD Current 5V Cards
(Including 80mA Draw from 5V Card)
Active VDD Current 5V Cards
(Current Consumed by DS8024 Only)
Active VDD Current 3V Cards
(Including 65mA Draw from 3V Card)
Active VDD Current 3V Cards
(Current Consumed by DS8024 Only)
Inactive-Mode Current IDD Card inactive 500 μA
CLOCK SOURCE
Crystal Frequency f
XTAL1 Operating Conditions
External Capacitance for Crystal
Internal Oscillator f
SHUTDOWN TEMPERATURE
Shutdown Temperature TSD (Note 3) +150 °C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DDA
V
Threshold voltage (falling) 2.30 2.45 2.60 V
TH2
Hysteresis 50 100 150 mV
V
HYS2
I
DD_50V
I
DD_IC
I
DD_30V
I
DD_IC
External crystal 0 20 MHz
XTAL
f
XTAL1
V
IL_XTAL1
V
IH_XTAL1
C
C
Low-level input on XTAL1 (Note 3) -0.3
High-level input on XTAL1 (Note 3)
,
XTAL1
XTAL2
2.7 MHz
INT
VCC= 5V, |ICC| < 80mA 4.0 6.0
VCC= 5V, |ICC| < 30mA 3.0 6.0
ICC = 80mA, f
= 10MHz, V
f
CLK
ICC = 80mA, f
= 10MHz, V
f
CLK
ICC = 65mA, f
f
= 10MHz, V
CLK
ICC = 65mA, f
f
= 10MHz, V
CLK
XTAL
DDA
= 20MHz,
XTAL
DDA
XTAL
DDA
= 20MHz,
XTAL
DDA
= 20MHz,
= 20MHz,
= 5.0V
= 5.0V (Note 2)
= 5.0V
= 5.0V (Note 2)
215 mA
135 mA
100 mA
35 mA
V
0 20 MHz
0.3 x
V
0.7 x
V
DD
DD
VDD +
0.3
V
(Note 3) 15 pF
DS8024
Smart Card Interface
_______________________________________________________________________________________ 3
RECOMMENDED DC OPERATING CONDITIONS (continued)
(VDD= +3.3V, V
DDA
= +5.0V, TA= +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RST PIN
Card-Inactive Mode
Card-Active Mode
Output Low Voltage V
Output Current I
Output Low Voltage V
Output High
Voltage
V
Rise Time t
Fall Time t
Shutdown Current
Threshold
Current Limitation I
RSTIN to RST Delay t
D(RSTIN-RST)
OL_RST1
OL_RST1
OL_RST2
OH_RST2
I
RST(SD)
RST(LIMIT)
I
V
I
I
CL= 30pF (Note 3) 0.1 μs
R_RST
CL= 30pF (Note 3) 0.1 μs
F_RST
= 1mA 0 0.3 V
OL_RST
= 0V 0 -1 mA
O_LRST
= 200μA 0 0.3 V
OL_RST
V
-
OH_RST
= -200μA
CC
0.5
V
CC
-20 mA
-20 +20 mA
2 μs
V
CLK PIN
Card-Inactive Mode
Card-Active Mode
Output Low Voltage V
Output Current I
Output Low Voltage V
Output High
Voltage
Rise Time t
Fall Time t
Current Limitation I
Clock Frequency f
OL_CLK1 IOLCLK
OL_CLK1
V
OH_CLK2 IOHCLK
CLK(LIMIT)
V
OL_CLK2
I
CL= 30pF (Note 3) 8 ns
R_CLK
CL= 30pF (Note 3) 8 ns
F_CLK
-70 +70 mA
Operational (Note 3) 0 10 MHz
CLK
Duty Factor C
Slew Rate SR C
= 1mA 0 0.3 V
= 0V 0 -1 mA
OLCLK
= 200μA 0 0.3 V
OLCLK
V
-
= -200μA
= 30pF (Note 3) 45 55 %
L
= 30pF (Note 3) 0.2 V/ns
L
CC
0.5
V
V
CC
VCC PIN
Card-Inactive Mode
Output Low Voltage V
Output Current I
ICC= 1mA 0 0.3 V
CC1
VCC = 0V 0 -1 mA
CC1
I
< 80mA 4.75 5.00 5.25
CC(5V)
I
< 65mA 2.78 3.00 3.22
CC(3V)
5V card: current pulses of 40nC
Output Low Voltage V
CC2
with I < 200mA, t < 400ns,
f < 20MHz (Note 3)
4.6 5.4
V
3V card: current pulses of 24nC
Card-Active Mode
with I < 200mA, t < 400ns,
2.75 3.25
f < 20MHz (Note 3)
Output Current I
Shutdown Current
Threshold
I
Slew Rate V
CC2
CC(SD)
CCSR
V
V
120 mA
Up/down, C < 300nF 0.05 0.16 0.22 V/μs
= 0 to 5V -80
CC(5V)
= 0 to 3V -65
CC(3V)
mA
DS8024
Smart Card Interface
4 _______________________________________________________________________________________
RECOMMENDED DC OPERATING CONDITIONS (continued)
(VDD= +3.3V, V
DDA
= +5.0V, TA= +25°C, unless otherwise noted.) (Note 1)
DATA LINES (I/O AND I/OIN)
I/O I/OIN Falling Edge Delay t
Pullup Pulse Active Time tPU (Note 3) 100 ns
Maximum Frequency f
Input Capacitance CI (Note 3) 10 pF
I/O, AUX1, AUX2 PINS
Card-Inactive Mode
Card-Active Mode
I/OIN, AUX1IN, AUX2IN PINS
Output Low Voltage VOL IOL = 1mA 0 0.3 V
Output High Voltage VOH IOH < -40μA
Output Rise/Fall Time tOT CL= 30pF, 10% to 90% (Note 3) 0.1 μs
Input Low Voltage VIL -0.3
Input High Voltage V
Input Low Current I
Input High Current I
Input Rise/Fall Time tIT V
Integrated Pullup Resistor RPU Pullup to VDD 9 11 13 k
Current When Pullup Active I
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
D(IO-IOIN)
Output Low Voltage V
Output Current I
Internal Pullup
Resistor
Output Low Voltage V
Output High
Voltage
V
Output Rise/Fall
Time
Input Low Voltage V
Input High Voltage V
Input Low Current I
Input High Current I
R
(Note 3) 200 ns
1 MHz
IOMAX
I
OL_IO1
V
OL_IO1
To VCC 9 11 19 k
PU_IO
OL_IO2 IOL_IO
I
OH_IO2
CL= 30pF (Note 3) 0.1 μs
t
OT
-0.3 +0.8
IL_IO
1.5 V
IH_IO
IL_IO
V
IH_IO
= 1mA 0 0.3 V
OL_IO
= 0V 0 -1 mA
OL_IO
= 1mA 0 0.3 V
= < -40μA (3V/5V) 0.75 x VCC VCC V
OH_IO
CC
V
= 0V 700 μA
IL_IO
= VCC 20 μA
IH_IO
V
Input Rise/Fall Time tIT (Note 3) 1.2 μs
Current Limitation I
Current When
Pullup Active
CL= 30pF -15 +15 mA
IO(LIMIT)
I
PU
IH
IL_IO
IH_IO
PU
CL= 80pF, VOH = 0.9 x V
(Note 3)
VIL = 0V 600 μA
VIH = VDD 10 μA
to VIH (Note 3) 1.2 μs
IL
CL= 30pF, VOH = 0.9 x V
(Note 3)
DD
DD
-1 mA
0.75 x
V
DD
0.7 x
V
DD
VDD +
0.1
0.3 x
V
DD
VDD +
0.3
V
V
V
-1 mA
DS8024
Smart Card Interface
_______________________________________________________________________________________ 5
RECOMMENDED DC OPERATING CONDITIONS (continued)
(VDD= +3.3V, V
DDA
= +5.0V, TA= +25°C, unless otherwise noted.) (Note 1)
Note 1: Operation guaranteed at TA= -40°C and TA= +85°C, but not tested.
Note 2: IDD_IC measures the amount of current used by the DS8024 to provide the smart card current minus the load.
Note 3: Guaranteed by design, but not production tested.
CONTROL PINS (CLKDIV1, CLKDIV2, CMDVCC, RSTIN, 5V/3V)
Input Low Voltage V
Input High Voltage V
Input Low Current I
Input High Current I
Integrated Pullup Resistor RPU Pullup to VDD, 5V/3V only 50 85 120 k
INTERRUPT OUTPUT PIN (OFF)
Output Low Voltage VOL IOL = 2mA 0 0.3 V
Output High Voltage VOH IOH = -15μA
Integrated Pullup Resistor RPU Pullup to VDD 12 20 28 k
PRES, PRE S PINS
Input Low Voltage V
Input High Voltage V
Input Low Current I
Input High Current I
TIMING
Activation Time t
Deactivation Time t
CLK to Card Start
Time
PRES/PRES Debounce Time t
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
IL
IH
IL_IO
IH_IO
IL_PRES
IH_PRES
IL_PRES
IH_PRES
ACT
DEACT
Window Start t3 95
Window End t
160
5
DEBOUNCE
-0.3
0.7 x
V
DD
0 < VIL < VDD 5 μA
0 < VIH < VDD 5 μA
0.75 x
V
DD
0.7 x
V
DD
V
V
160 μs
80 μs
8 ms
= 0V 40 μA
IL_PRES
= VDD 40 μA
IH_PRES
0.3 x
V
DD
VDD +
0.3
V
0.3 x
V
DD
V
V
V
V
μs
Loading...