DS8023 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – Smart Card Interface

DS8023
Smart Card Interface
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
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
DS8023-RJX+
-40°C to +85°C
28 TSSOP
DS8023-RRX+
-40°C to +85°C
28 SO
Note: Contact the factory for availability of other variants and
package options.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Selector Guide appears at end of data sheet.
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
Pin Configuration
TOP VIEW
CLKDIV1 1
CLKDIV2 2
5V/3V 3
PGND 4
CP2 5
V_DDA 6
CP1 7
V_UP 8
PRES 9
PRES 10
I/O 11
AUX2 12
AUX1 13
CGND 14
DS8023
SO/TSSOP
28 AUX2IN
27 AUX1IN
26 I/OIN
25 XTAL2
24 XTAL1
23 OFF
22 GND
21 V_DD
20 RSTIN
19 CMDVCC
18 1_8V
17 V_CC
16 RST
15 CLK
*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.maximintegrated.com/errata.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6380; Rev 1; 4/13