DS8024M-RJX+T Maxim Integrated, DS8024M-RJX+T Datasheet
DS8024M-RJX+T
Specifications of DS8024M-RJX+T
Related parts for DS8024M-RJX+T
DS8024M-RJX+T Summary of contents
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Rev 3; 7/12 General Description The DS8024 smart card interface low-cost, analog front-end for a smart card reader, designed for all ISO ® 7816, EMV , and GSM11-11 applications. The DS8024 is a pin-for-pin drop-in replacement ...
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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 PGND ...........-0.5V to +6.5V DDA Voltage Range on CP1, CP2, and V UP Relative to PGND...............................................-0.5V to ...
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RECOMMENDED DC OPERATING CONDITIONS (continued +3.3V +5.0V +25°C, unless otherwise noted.) (Note 1) DD DDA A PARAMETER RST PIN Output Low Voltage Card-Inactive Mode Output Current Output Low Voltage Output High Voltage Rise Time ...
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Smart Card Interface RECOMMENDED DC OPERATING CONDITIONS (continued +3.3V +5.0V +25°C, unless otherwise noted.) (Note 1) DD DDA A PARAMETER DATA LINES (I/O AND I/OIN) I/O I/OIN Falling Edge Delay Pullup Pulse Active Time ...
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RECOMMENDED DC OPERATING CONDITIONS (continued +3.3V +5.0V +25°C, unless otherwise noted.) (Note 1) DD DDA A PARAMETER CONTROL PINS (CLKDIV1, CLKDIV2, CMDVCC, RSTIN, 5V/3V) Input Low Voltage Input High Voltage Input Low Current Input ...
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Smart Card Interface PIN NAME CLKDIV1, Clock Divider. Determines the divided-down input clock frequency (presented at XTAL1 or from CLKDIV2 crystal at XTAL1 and XTAL2) on the CLK output pin. Dividers and 8 ...
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Detailed Description The DS8024 is an analog front-end for communicating with 3V and 5V smart cards. Using an integrated charge pump, the DS8024 can operate from a single input voltage. The device translates all communication lines to the correct voltage ...
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Smart Card Interface The DS8024 card interface remains inactive no matter the levels on the command lines until duration t V has reached a level higher than V DD When V falls below V , the DS8024 executes a DD ...
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When a card is inserted into the reader (if PRES is active), the host microcontroller can begin an activation sequence (start a card session) by pulling CMDVCC low. The following events form an activation sequence (Figure 3): 1) Host: CMDVCC ...
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Smart Card Interface CMDVCC V CC I/O CLK RSTIN RST I/OIN Figure 4. Activation Sequence CMDVCC RST CLK I Figure 5. Deactivation Sequence 10 200ns ...
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Deactivation Sequence When the host microcontroller is done communicating with the smart card, it sets the CMDVCC line high to execute an automatic deactivation sequence and returns the card interface to the inactive mode. The following sequence of events occurs ...
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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 Figure 7. Emergency Deactivation Sequence (Card Extraction) 12 DEBOUNCE DEACTIVATION CAUSED BY CARDS ...
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XTAL1 XTAL2 GPIO CLKDIV1 ... CLKDIV2 5V/3V ... OFF ... RSTIN CMDVCC ... AUX2IN GPIO AUX1IN ISOIO0 I/OIN MAXQ1103 CLKDIV1 CLKDIV2 GPIO 5V/3V ... OFF ... RSTIN CMDVCC ... AUX2IN GPIO AUX1IN ISOIO1 I/OIN XTAL1 XTAL2 33pF *PLACE A ...
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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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... Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated Products Inc. 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 ________________ 15 © 2012 Maxim Integrated Products ...