ST8024CDR STMicroelectronics, ST8024CDR Datasheet

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... CLKDIV1 and CLKDIV2 signals) with synchronous frequency changes ■ Non-inverted control of RST via pin RSTIN Table 1. Device summary Order codes Temperature range ST8024CDR - °C ST8024CTR - °C March 2009 and GND) DD ■ ISO 7816, GSM11.11 and EMV (payment systems) compatibility ■ ...

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Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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Diagram Figure 1. Block diagram 5/31 ...

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Pin configuration Figure 2. Pin connections Table 2. Pin description Pin n° Symbol 1 CLKDIV1 Control of CLK frequency 2 CLKDIV2 Control of CLK frequency 3 5V/ PGND Power ground for step-up converter 5 C1+ External ...

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Table 2. Pin description (continued) Pin n° Symbol 19 CMDVCC Start activation sequence input (active low) 20 RSTIN Card reset input from MCU 21 V Supply voltage DD 22 GND Ground 23 OFF Interrupt to MCU (active low) 24 XTAL1 ...

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Maximum ratings Table 3. Absolute maximum ratings Symbol V V Supply voltage DD, DDP Voltage on pins XTAL1, XTAL2, 5V/3V, RSTIN, AUX2UC, V AUX1UC, I/OUC, CLKDIV1, CLKDIV2, PORADJ, CMDVCC, n1 PRES, PRES and OFF V Voltage on card contact ...

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Electrical characteristics DDP °C. A Table 6. Electrical characteristics over recommended operating condition Symbol Parameter V Supply voltage DD Supply voltage for the V DDP voltage doubler I Supply current ...

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DDP °C. A Table 7. Step-up converter Symbol Parameter f Clock frequency CLK Threshold voltage for step converter to change to th(vd-vf) voltage follower Output voltage on pin V ...

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DDP °C. A Table 9. Crystal connection (pins XTAL1 and XTAL2) Symbol Parameter External capacitance on pins XTAIL1, C XTAL1,2 XTAIL2 f Crystal frequency XTAL f Frequency applied on pin XTAL1 ...

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Table 11. Data lines to card reader (pins I/O, AUX1 AND AUX2 with integrated 11 kΩ pull-up resistor Symbol Parameter R Integrated pull-up resistor PU t Data input transition time T(DI) t Data output transition time T(DO) ...

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DDP 25 °C. Table 14. Reset output to card reader (pin RST) Symbol Parameter Output voltage in inactive V O(inactive) mode I Output current O(inactive) t RSTN to RST Delay D(RSTIN-RST) V Low level ...

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DDP °C (Note 5) A Table 16. Control inputs (pins CLKDIV1, CLKDIV2, CMDVCC, RSTIN and Symbol Parameter V Input voltage low IL V Input voltage high ...

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DDP °C. A Table 20. Timing Symbol Parameter t Activation time ACT t Deactivation time DE Start of the windows for sending t 3 CLK to card End of the windows ...

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Functional description Throughout this document it is assumed that the reader is familiar with ISO7816 terminology. 5.1 Power supply The supply pins for the IC are V signals interfacing with the system controller are referred to V supply the ...

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Figure 4. Voltage supervisor 5.2.2 With an external divider on pin PORADJ If an external resistor bridge is connected to pin PORADJ (R1 and R2 in following occurs: – The internal threshold voltage V hysteresis, therefore ...

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Table 21. Clock frequency selection CLKDIV1 The status of pins CLKDIV1 and CLKDIV2 must not be changed simultaneously; a delay minimum between changes is needed; the minimum duration of any state of ...

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Inactive mode After a power-on reset, the circuit enters the inactive mode. A minimum number of circuits are active while waiting for the microcontroller to start a session: – All card contacts are inactive (approximately 200 Ω to GND) ...

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Figure 5. Activation sequence using RSTIN and CMDVCC Figure 6. Activation sequence at t 20/31 3 ...

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Active mode When the activation sequence is completed, the ST8024 will be in its active mode. Data are exchanged between the card and the microcontroller via the I/O lines. The ST8024 is designed for cards without V internal non-volatile ...

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The average current must stay below the specified maximum current value. ...

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Figure 9. Emergency deactivation sequence (card extraction) 23/31 ...

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Application Figure 10. Application diagram 10µF 100nF +5V (1) 100nF (1) 100nF R100K +3.3V (1) These capacitors must be of the low ESR-type and be placed near the IC (within 100 mm). (2) ST8024 and the microcontroller must use ...

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Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at ...

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Dim. Min 0.1 b 0. 17.70 E 10. 7.40 L 0.50 S 26/31 SO-28 mechanical data mm. Typ. Max. 2.65 0.3 0.49 0.32 0.5 45° (typ.) 18.10 10.65 1.27 16.51 ...

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TSSOP28 mechanical data mm. Dim. Min. Typ 0.05 A2 0.8 b 0.19 c 0.09 D 9.6 9.7 E 6.2 6.4 E1 4.3 4.4 e 0.65 BSC K 0° L 0.45 0.60 Max. Min. 1.2 0.15 0.002 1 1.05 ...

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Tape & reel SO-28 mechanical data Dim. Min 12 10.8 Bo 18.2 Ko 2.9 Po 3.9 P 11.9 28/31 mm. Typ. Max. Min. 330 13.2 0.504 0.795 2.362 30.4 11.0 0.425 18.4 ...

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Tape & reel TSSOP28 mechanical data mm. Dim. Min. Typ 12 6.8 Bo 10.1 Ko 1.7 Po 3.9 P 11.9 inch. Max. Min. Typ. 330 13.2 0.504 0.795 2.362 22.4 7 0.268 ...

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Revision history Table 23. Document revision history Date Revision 18-Mar-2004 4 27-Jun-2006 5 13-Dec-2006 6 03-Jun-2008 7 30-Mar-2009 8 30/31 Changes Pag. 10, fig. 4, RSTIN ==> CLK. Add package TSSOP28. Removed: the comment point 5 on page 22. ...

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