EVALUATION KIT AVAILABLE DS8005 Smart Card Interface General Description Features The DS8005 dual smart card interface is a low-cost, dual Analog Interface and Level Shifting for IC Card analog front-end for an IC card reader interface that needs Communication to communicate with two smart cards in a mutually exclu- 8kV (min) ESD (HBM) Protection on Card Interfaces sive fashion. The analog interface is designed for use in Ultra-Low Stop-Mode Current, Less than 10nA ISO 7816, EMV , and B-CAS applications. The device is Typical functionally similar to two DS8024s with external multi- plexing to select the active interface, but also includes low Internal IC Card Supply-Voltage Generation 5.0V 5%, 80mA (max) power and 1.8V card support. Additionally, the device is designed for applications where the C4/C8 (AUX1/AUX2) 3.0V 8%, 65mA (max) 1.8V 10%, 30mA (max) contacts are not required on either card interface. Automatic Card Activation and Deactivation The device is provided in 28-pin SO and TSSOP packag- es. The pinout is backwards compatible with the DS8313, Controlled by Dedicated Internal Sequencer allowing applications to use the same footprint and PCB I/O Lines from Host Directly Level Shifted for Smart for applications that communicate with either one or two Card Communication smart cards. Flexible Card Clock Generation, Supporting External The device is designed to be used with microcontrollers Crystal Frequency Divided by 1, 2, 4, or 8 that contain an ISO 7816 UART, or have the bandwidth High-Current, Short-Circuit and High-Temperature to run this protocol in software by bit-banging IO ports. If Protection the microcontroller does not have the capability of running Low Active-Mode Current the ISO 7816 UART, the DS8007 is the more appropriate product selection. Internal Multiplexing Allows One ISO 7816 UART Implementation to Control Two Smart Card Sockets Applications Set-Top Box Conditional Access Telecommunications Pay Television Access Control Financial Terminals Ordering Information CARD VOLTAGES LOW POWER LOW POWER PIN- PART PRES POLARITY TEMP RANGE SUPPORTED STOP MODE ACTIVE MODE PACKAGE DS8005-RRX+ 1.8V, 3V, 5V Yes Yes Positive -40C to +85C 28 SO DS8005-RJX+ 1.8V, 3V, 5V Yes Yes Positive -40C to +85C 28 TSSOP +Denotes lead(Pb)-free/RoHS-compliant package. Typical Application Circuit appears at end of data sheet. EMV is a registered trademark of EMVCo LLC. 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. 19-5257 Rev 2 9/17DS8005 Smart Card Interface Absolute Maximum Ratings Voltage Range on V Relative to GND...............-0.5V to +6.5V Maximum Junction Temperature.......................................+125C DD Voltage Range on V Relative to GND.............-0.5V to +6.5V Maximum Power Dissipation Range (T = -25C to +85C)..700mW DDA A Voltage Range on CLKA, RSTA, I/OA......-0.5V to (V + 0.5V) Storage Temperature Range..............................-55C to +150C CCA Voltage Range on CLKB, RSTB, I/OB......-0.5V to (V + 0.5V) Lead Temperature (soldering, 10s)...................................+300C CCB Voltage Range on All Other Pins Soldering Temperature (reflow)........................................+260C Relative to GND.....................................-0.5V to (V + 0.5V) 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. Recommended DC Operating Conditions (V = +3.3V, V = +5.0V, T = +25C, unless otherwise noted. All specifications apply to the device, unless otherwise noted in the DD DDA A CONDITIONS column.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY Digital Supply Voltage V 2.7 6.0 V DD Card Voltage-Generator Supply Voltage V Must be V 4.75 6.0 V DDA DD V Threshold voltage (falling) 2.20 2.45 2.65 V TH2 Reset Voltage Thresholds V Hysteresis 50 100 200 mV HYS2 CURRENT CONSUMPTION Active V Current 5V Cards I = 80mA, f = 20MHz, DD CC XTAL I 80.75 85 mA DD 50V (Including 80mA Draw from 5V Card) f = 10MHz, V = 5.0V CLK DDA Active V Current 5V Cards (Current I = 80mA, f = 20MHz, DD CC XTAL I 0.75 5 mA DD IC Consumed by Device Only) f = 10MHz, V = 5.0V (Note 2) CLK DDA Active V Current 3V Cards I = 65mA, f = 20MHz, DD CC XTAL I 65.75 70 mA DD 30V (Including 65mA Draw from 3V Card) f = 10MHz, V = 5.0V CLK DDA Active V Current 3V Cards (Current I = 65mA, f = 20MHz, DD CC XTAL I 0.75 5 mA DD IC Consumed by Device Only) f = 10MHz, V = 5.0V (Note 2) CLK DDA Active V Current 1.8V Cards I = 30mA, f = 20MHz, DD CC XTAL I 30.75 40 mA DD 18V (Including 30mA Draw from 1.8V Card) f = 10MHz, V = 5.0V CLK DDA Active V Current 1.8V Cards (Current I = 30mA, f = 20MHz, DD CC XTAL I 0.75 5 mA DD IC Consumed by Device Only) f = 10MHz, V = 5.0V (Note 2) CLK DDA Card inactive, active-high PRES , Inactive-Mode Current I 50 400 A DD device not in stop mode Device in ultra-low-power stop mode Stop-Mode Current I (CMDVCC, 5V/3V, and 1 8V set to 0.01 2 A DD STOP logic 1) (Note 3) Maxim Integrated 2 www.maximintegrated.com