
19-6380; Rev 1; 4/13
DS8023
Smart Card Interface
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.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
o Analog Interface and Level Shifting for IC Card
Communication
o ±8kV (min) ESD (IEC) Protection on Card Interface
Pins
o Ultra-Low Stop-Mode Current, Less Than 10nA (typ)
o Internal IC Card-Supply Voltage Generation
5.0V ±5%, 80mA (max)
3.0V ±8%, 65mA (max)
1.8V ±10%, 30mA (max)
o Automatic Card Activation and Deactivation
Controlled by Dedicated Internal Sequencer
o I/O Lines from Host Directly Level Shifted for
Smart Card Communication
o Flexible Card Clock Generation, Supporting
External Crystal Frequency Divided by 1, 2, 4, or 8
o 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
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 VDD
20 RSTIN
19 CMDVCC
18 1_8V
17 VCC
16 RST
15 CLK
5V/3V
CLKDIV2
CLKDIV1
CP1
VDDA
VUP
PRES
I/O
AUX2
AUX1
4
1
2
3
5
6
7
8
9
10
11
12
13
14
CGND
CP2
SO/TSSOP
Pin Configuration