DS8007 Datasheet, PDF (1/41 Pages) Dallas Semiconductor – Multiprotocol Dual Smart Card Interface

Rev 1; 10/07
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Multiprotocol Dual Smart Card Interface
General Description
The DS8007 multiprotocol dual smart card interface is a
low-cost, dual smart card reader interface supporting
all ISO 7816, EMV™, and GSM11-11 requirements.
Through its 8-bit parallel bus and dedicated address
selects (AD3–AD0), the DS8007 can easily and directly
connect to the nonmultiplexed byte-wide bus of a
Maxim/Dallas secure microcontroller. Optionally, the
parallel bus can be multiplexed to allow direct access
to the multiplexed bus of an 80C51-compatible micro-
controller through MOVX memory addressing.
One integrated UART is multiplexed among the inter-
faces to allow high-speed automatic smart card pro-
cessing with each card-possessing, independent,
variable, baud-rate capability. The card interface is con-
trolled by internal sequencers that support automatic
activation and deactivation sequencing, handling all
actions required for T = 0, T = 1, and synchronous pro-
tocols. Emergency deactivation is also supported in
case of supply dropout. A third card is supported
through the auxiliary I/O. The same set of I/O can option-
ally be used as additional serial interface for the UART.
The DS8007 provides all electrical signals necessary to
interface with two smart cards. The integrated voltage
converter ensures full cross-compatibility between 1.8V/
3V/5V cards and a 1.8V/3V/5V environment, and allows
operation within a 2.7V to 6V supply voltage range.
Applications
Banking Applications (Point-of-Sale Terminals,
Debit/Credit Payment Terminals, PIN Pads,
Automated Teller Machines)
Telecommunications
Pay Television
Access Control
Ordering Information
PART
TEMP RANGE
SMART
CARDS
SUPPORTED
PIN-
PACKAGE
DS8007-ENG -40°C to +85°C 2 + auxiliary
DS8007-ENG+ -40°C to +85°C 2 + auxiliary
+ Denotes a lead-free/RoHS-compliant device.
48 LQFP
48 LQFP
EMV is a trademark owned by EMVCo LLC.
MAXQ is a registered trademark of Maxim Integrated Products, Inc.
Note: Some revisions of this device may incorporate devia-
tions 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.
Features
♦ Complete Interface/Control for Two Separate
Smart Card Devices
♦ 8kV (min) ESD Protection on Card Interfaces
♦ Internal IC Card Supply Voltage Generation
5.0V ±5%, 65mA (max)
3.0V ±8%, 50mA (max)
1.8V ±10%, 30mA (max)
♦ Automatic Card Activation, Deactivation, and Data
Communication Controlled by Dedicated Internal
Sequencer
♦ Host Interface Through an 8-Bit Parallel Bus (User-
Selectable Multiplexed or Nonmultiplexed Modes)
♦ Chip Select and Tri-State Bus Allow Multiple
Devices (Card Readers and Memories) on Bus
♦ 8-Character Receive FIFO with Optional
Programmable Depth/Threshold
♦ I/O Interface Pin to External ISO 7816 UART
♦ Separate Card Clock Generation (Up to 10MHz)
with 2x Frequency Doubling
♦ Selectable Card Clock STOP HIGH, STOP LOW, or
Internally Generated 1.25MHz (for Card Power-
Down)
♦ EMV-Certified Reference Design and Evaluation
Kit Available (DS8007-KIT)
Typical Operating Circuit appears at end of data sheet.
Pin Configuration
RSTOUT 1
I/OAUX 2
I/OA 3
C8A 4
PRESA 5
C4A 6
GNDA 7
CLKA 8
VCCA 9
RSTA 10
I/OB 11
C8B 12
DS8007
LQFP
36 RD
35 D7
34 D6
33 D5
32 D4
31 D3
30 D2
29 D1
28 D0
27 VDD
26 CPA2
25 AGND
______________________________________________ Maxim Integrated Products 1
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.