DS8007A Rev 0 4/08 Multiprotocol Dual Smart Card Interface General Description Features Complete Interface/Control for Two Separate The DS8007A multiprotocol dual smart card interface is Smart Card Devices an automotive grade, low-cost, dual smart card reader interface supporting all ISO 7816, EMV, and GSM11- 8kV (min) ESD Protection on Card Interfaces 11 requirements. Through its 8-bit parallel bus and dedi- Internal IC Card Supply Voltage Generation cated address selects (AD3AD0), the DS8007A can 5.0V 5%, 65mA (max) easily and directly connect to the nonmultiplexed byte- 3.0V 8%, 50mA (max) wide bus of a Maxim secure microcontroller. Optionally, 1.8V 10%, 30mA (max) the parallel bus can be multiplexed to allow direct Automatic Card Activation, Deactivation, and Data access to the multiplexed bus of an 80C51-compatible Communication Controlled by Dedicated Internal microcontroller through MOVX memory addressing. Sequencer One integrated UART is multiplexed among the inter- Host Interface Through an 8-Bit Parallel Bus (User- faces to allow high-speed automatic smart card pro- Selectable Multiplexed or Nonmultiplexed Modes) cessing with each card-possessing, independent, Chip Select and Three-State Bus Allow Multiple variable, baud-rate capability. The card interface is con- Devices (Card Readers and Memories) on Bus trolled by internal sequencers that support automatic activation and deactivation sequencing, handling all 8-Character Receive FIFO with Optional actions required for T = 0, T = 1, and synchronous pro- Programmable Depth/Threshold tocols. Emergency deactivation is also supported in I/O Interface Pin to External ISO 7816 UART case of supply dropout. A third card is supported Separate Card Clock Generation (Up to 10MHz) through the auxiliary I/O. The same set of I/O can option- with 2x Frequency Doubling ally be used as additional serial interface for the UART. Selectable Card Clock Stop High, Stop Low, or The DS8007A provides all electrical signals necessary Internally Generated 1.25MHz (for Card Power-Down) to interface with two smart cards. The integrated volt- EMV-Certified Reference Design and Evaluation age converter ensures full cross-compatibility between Kit Available (DS8007-KIT) 1.8V/3V/5V cards and a 1.8V/3V/5V environment, and allows operation within a 2.7V to 6V supply voltage Pin Configuration range. The standard DS8007 revision is available for nonautomotive applications. Applications Banking Applications (Point-of-Sale Terminals, + Debit/Credit Payment Terminals, PIN Pads, RSTOUT 1 36 RD Automated Teller Machines) I/OAUX 2 35 D7 Telecommunications I/OA 3 34 D6 Pay Television C8A 4 33 D5 PRESA 5 32 D4 Access Control C4A 6 31 D3 DS8007A GNDA 7 30 D2 Ordering Information CLKA 8 29 D1 V 9 28 D0 CCA SMART PIN- RSTA 10 27 V DD PART TEMP RANGE CARDS PACKAGE I/OB 11 26 CPA2 SUPPORTED C8B 12 25 AGND 2 + auxiliary DS8007A-EAG+ -40C to +125C 48 LQFP +Denotes a lead(Pb)-free/RoHS-compliant device. LQFP EMV is a trademark owned by EMVCo LLC. Typical Operating Circuit appears at end of data sheet. 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. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE PRESB 13 48 DELAY C4B 14 47 XTAL1 GNDB 15 46 XTAL2 16 CLKB 45 AD0 17 VCCB 44 AD1 RSTB 18 43 AD2 GND 19 42 AD3 VUP 20 41 INTAUX CPA1 21 40 INT 22 CPB1 39 ALE V 23 DDA 38 CS CPB2 24 37 WRMultiprotocol Dual Smart Card Interface ABSOLUTE MAXIMUM RATINGS Voltage Range on V Relative to Ground ...........-0.5V to +6.5V Maximum Junction Temperature .....................................+150C DD Voltage Range on V Relative to Ground .........-0.5V to +6.5V Maximum Power Dissipation (T = -25C).......................900mW DDA A Voltage Range on Any Pin Relative to Ground Storage Temperature Range .............................-55C to +150C Pins CPA1, CPA2, CPB1, CPB2, and V .........-0.5V to +7.5V Soldering Temperature...........................Refer to the IPC/JEDEC UP All Other Pins...........................................-0.5V to (V + 0.5V) J-STD-020 Specification. DD 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. ELECTRICAL CHARACTERISTICS (V = +3.3V, V = +3.3V, T = +25C, unless otherwise noted.) (Note 1) DD DDA A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Digital Supply Voltage V 2.7 6.0 V DD Step-Up Converter Supply V V 6.0 V DDA DD Voltage Cards Inactive f = 0MHz 0.9 Power-Down XTAL I mA PD V Current DD Cards Active f = 0MHz, f = 0MHz, V = 5V 2.2 XTAL CLK CCx Sleep Mode V Current DD I f = 0MHz, V = 5V 24 mA STOP CLK CCx (Cards Active) 3x V step-up: DD Active V Current DD I I + I = 80mA, V = 2.7V, 325 mA DD CCA CCB DD 5V Cards f = 20MHz, f = 10MHz XTAL CLK 2x V step-up: DD I + I = 80mA, f = 20MHz, 225 CCA CCB XTAL f = 10MHz, V = 2.7V CLK DD Active V Current DD I mA DD 3V Cards No step-up: I + I = 80mA, f = 20MHz, 120 CCA CCB XTAL f = 10MHz, V = 5V CLK DD V Threshold voltage (falling) 2.1 2.5 V RST Power-Fail Reset Voltage V Hysteresis 50 170 mV HYS Reset V 1.25 DRST Threshold V V + DD Output Voltage V DO 0.3 Delay Pin V = 0V -2 A DELAY Output Current I DO V = V +2 mA DELAY DD Output C 1 nF DO Capacitance RSTOUT PIN 0.8 x V + DD Output High Voltage V I = -1mA V OHRSTO OH V 0.3 DD Output Low Voltage V I = 2mA -0.3 +0.4 V OLRSTO OL Leakage Current I V = 0V, V = 5V -10 +10 A L OL OH 2 DS8007A