ST8024CDR ,Smartcard interfaceFeatures■ Designed to be compatible with the NDS conditional access system■ IC card interface■ 3 or ..
ST8024CTR ,Smartcard interfaceElectrical characteristics over recommended operating condition . . . . 9Table 7. Step-up convert ..
ST83003 ,HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTORST83003®HIGH VOLTAGE FAST-SWITCHINGNPN POWER TRANSISTOR■ MEDIUM VOLTAGE CAPABILITY ■ LOW SPREAD OF ..
ST8812FP , HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTOR
ST890B ,1.2 CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWNapplications are:Internal current limiting circuitry protects the input PCMCIA slots, Access bus sl ..
ST890BDR ,1.2 CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWNST8901.2A CURRENT LIMITED HIGH SIDE WITHTHERMAL SHUTDOWN■ 2.7V TO 5.5V INPUT RANGE■ PROGRAMMABLE CU ..
STRG6624 , OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
STRG6624 , OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
STR-G6624 , OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
STR-L451 , Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise
STRM6529 , OFF-LINE SWITCHING REGULATOR . WITH POWER MOSFET OUTPUT
STRM6529 , OFF-LINE SWITCHING REGULATOR . WITH POWER MOSFET OUTPUT
ST8024CDR-ST8024CTR
Smartcard interface
ST8024Smartcard interface
Features Designed to be compatible with the NDS
conditional access system IC card interface 3 or 5 V supply for the IC (VDD and GND) Three specifically protected half-duplex bi-
directional buffered I/O lines to card contacts
C4, C7 and C8 DC-DC converter for VCC generation
separately powered from a 5 V ± 20% supply
(VDDP and PGND) 3 or 5 V ± 5 % regulated card supply voltage
(VCC) with appropriate decoupling has the
following capabilities:
–ICC < 80 mA at VDDP = 4 to 6.5 V Handles current spikes of 40 nA up to 20
MHz Controls rise and fall times Filtered overload detection at
approximately 120 mA Thermal and short-circuit protection on all card
contacts Automatic activation and deactivation
sequences; initiated by software or by
hardware in the event of a short-circuit, card
take-off, overheating, VDD or VDDP drop-out Enhanced ESD protection on card side (> 6 kV) 26 MHz integrated crystal oscillator Clock generation for cards up to 20 MHz
(divided by 1, 2, 4 or 8 through CLKDIV1 and
CLKDIV2 signals) with synchronous frequency
changes Non-inverted control of RST via pin RSTIN ISO 7816, GSM11.11 and EMV (payment
systems) compatibility Supply supervisor for spike-killing during
power-on and power-off and power-on reset
(threshold fixed internally or externally by a
resistor bridge) Built-in debounce on card presence contacts One multiplexed status signal off
DescriptionThe ST8024 is a complete low cost analog
interface for asynchronous 3 V and 5 V smart
cards. It can be placed between the card and the
microcontroller with few external components to
perform all supply protection and control
functions. ST8024 is a direct replacement of
ST8004.
Main applications are: smartcard readers for set-
top-box, IC card readers for banking,
identification, pay TV.
Table 1. Device summary
Contents ST8024
Contents Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2 Voltage supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.1 Without external divider on pin PORADJ . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.2 With an external divider on pin PORADJ . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2.3 Application examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3 Clock circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.4 I/O transceivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.5 Inactive mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.6 Activation sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.7 Active mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.8 Deactivation sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.9 VCC generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.10 Fault detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
ST8024 List of tables
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 4. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 5. Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 6. Electrical characteristics over recommended operating condition . . . . . . . . . . . . . . . . . . . . 9
Table 7. Step-up converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 8. Card supply voltage characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 9. Crystal connection (pins XTAL1 and XTAL2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 10. Data lines (pins I/O, I/OUC, AUX1, AUX2, AUX1UC AND AUX2UC). . . . . . . . . . . . . . . . . 11
Table 11. Data lines to card reader (pins I/O, AUX1 AND AUX2 with integrated
11 kΩ pull-up resistor to VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 12. Data lines to microcontroller (pins I/OUC, AUX1UC AND AUX2UC with
integrated 11 kΩ pull-up resistor to VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 13. Internal oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 14. Reset output to card reader (pin RST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 15. Clock output to card reader (pin CLK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 16. Control inputs (pins CLKDIV1, CLKDIV2, CMDVCC, RSTIN and 5 V / 3 V . . . . . . . . . . . . 14
Table 17. Card presence inputs (pins PRES and PRES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 18. Interrupt output (pin OFF NMOS drain with integrated 20 kΩ pull-up resistor to VDD); . . . 14
Table 19. Protection and limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 20. Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 21. Clock frequency selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 22. Card presence indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 23. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
List of figures ST8024
List of figures
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Definition of output and input transition times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 4. Voltage supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 5. Activation sequence using RSTIN and CMDVCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 6. Activation sequence at t3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 7. Deactivation sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 8. Behavior of OFF, CMDVCC, PRES and VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 9. Emergency deactivation sequence (card extraction) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 10. Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
ST8024 Diagram
1 Diagram
Figure 1. Block diagram
