DS8005-KIT# Maxim Integrated Products, DS8005-KIT# Datasheet
DS8005-KIT#
Specifications of DS8005-KIT#
Related parts for DS8005-KIT#
DS8005-KIT# Summary of contents
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... Rev 0; 4/10 General Description The DS8005 dual smart card interface is a low-cost, dual analog front-end for an IC card reader interface that needs to communicate with two smart cards in a mutually exclusive fashion. The analog interface is designed for use in ISO 7816, EMV cations ...
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Smart Card Interface ABSOLUTE MAXIMUM RATINGS Voltage Range on V Relative to GND ...............-0.5V to +6.5V DD Voltage Range on V Relative to GND .............-0.5V to +6.5V DDA Voltage Range on CLKA, RSTA, I/OA ......-0. Voltage Range on ...
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RECOMMENDED DC OPERATING CONDITIONS (continued +3.3V +5.0V +25°C, unless otherwise noted. All specifications apply to the device, unless otherwise noted in DD DDA A the CONDITIONS column.) (Note 1) PARAMETER CLOCK SOURCE Crystal Frequency ...
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Smart Card Interface RECOMMENDED DC OPERATING CONDITIONS (continued +3.3V +5.0V +25°C, unless otherwise noted. All specifications apply to the device, unless otherwise noted in DD DDA A the CONDITIONS column.) (Note 1) PARAMETER Output ...
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RECOMMENDED DC OPERATING CONDITIONS (continued +3.3V +5.0V +25°C, unless otherwise noted. All specifications apply to the device, unless otherwise noted in DD DDA A the CONDITIONS column.) (Note 1) PARAMETER Input Low Current Input ...
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Smart Card Interface RECOMMENDED DC OPERATING CONDITIONS (continued +3.3V +5.0V +25°C, unless otherwise noted. All specifications apply to the device, unless otherwise noted in DD DDA A the CONDITIONS column.) (Note 1) PARAMETER TIMING ...
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... Smart Card Data-Line Output, Interface A. Card data communication line, contact C7. This pin is 11 I/OA only active if the first card interface is selected (SEL_AB low) and the interface has gone through an activation sequence. _______________________________________________________________________________________ Smart Card Interface CCB DS8005 6 23 DDA RSTIN 10 19 CMDVCC I/ I/ ...
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Smart Card Interface PIN NAME Smart Card Data-Line Output, Interface B. Card data communication line, contact C7. This pin is 12 I/OB only active if the second card interface is selected (SEL_AB high) and the interface has gone through an ...
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... OFF OFF2 Figure 1. Functional Diagram Detailed Description The DS8005 is an analog front-end for communicating with 1.8V, 3V, and 5V dual smart cards dual input-voltage device, requiring one supply to match that of a host microcontroller and a separate +5V sup- ply for generating correct smart card supply voltages. ...
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Smart Card Interface Voltage Supervisor The voltage supervisor monitors the V 220µs reset pulse ( used internally to keep the W device inactive during power-on or power-off of the V supply. See Figure 2. DD The IC card ...
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Current to and from the card I/O lines is limited internally to 15mA. The maximum frequency on these lines is 1MHz. Inactive Mode The device powers up with the card interface in the inactive mode. Minimal circuitry is ...
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Smart Card Interface 4) V rises from 0 to 5V, 3V, or 1.8V with a controlled CC_ + 1.5 × T times the internal slope ( oscillator period (approximately 25µs). 5) I/O_ pin ...
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CMDVCC V CC_ I/O_ CLK_ RSTIN RST_ I/OIN Figure 4. Activation Sequence CMDVCC RST_ CLK_ I/O_ V CC_ t 10 Figure 5. Deactivation Sequence ______________________________________________________________________________________ Smart Card Interface 200ns ...
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Smart Card Interface PRES_ OFF_ CMDVCC DEBOUNCE V CC_ Figure 6. Behavior of PRES_, OFF_, CMDVCC, and V OFF_ PRES_ RST_ CLK_ I/O_ V CC_ t 10 Figure 7. Emergency Deactivation Sequence (Card Extraction) 14 ______________________________________________________________________________________ DEBOUNCE DEACTIVATION CAUSED BY ...
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Stop Mode (Low-Power Mode) A low-power state, stop mode, can be entered by forc- ing the CMDVCC, 5V/3V, and 1_8V input pins to a logic-high state. Stop mode can only be entered when the smart card interface is inactive. In ...
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Smart Card Interface Smart Card Power Select The device supports three smart card V 1.8V, 3V, and 5V. The power select is controlled by the 1_8V and 5V/3V signals as shown in Table 3. The 1_8V signal has priority over ...
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... SEL_AB, OFF, and OFF2 pins with regard to card presence. REG A V CCA TRANSPARENT CLKA DIV CLKA LATCH A RSTA, I/OA, GNDA ENA REG B V CCB TRANSPARENT CLKB DIV CLKB LATCH B RSTB, I/OB, GNDB ENA SMART CARD 1 PRESA STATUS 1 SMART CARD 0 PRESB STATUS DS8005 17 ...
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Smart Card Interface Applications Information Performance can be affected by the layout of the appli- cation. For example, an additional cross-capacitance of 1pF between card reader contacts C2 (RST_) and C3 (CLK_ (RST_) and C7 (I/O_) can cause ...
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... OFF2 GPIO *PLACE A 100nF CAPACITOR CLOSE TO THE DS8005 AND PLACE A 220nF CAPACITOR CLOSE TO CARD CONTACT. For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...