ST8024LCDR STMicroelectronics, ST8024LCDR Datasheet
ST8024LCDR
Specifications of ST8024LCDR
Available stocks
Related parts for ST8024LCDR
ST8024LCDR Summary of contents
Page 1
... Features ■ Designed to be compatible with the NDS conditional access system (ST8024LCDR and ST8024LCTR only) ■ IC card interface ■ supply for the IC (V ■ Three specifically protected half-duplex bi- directional buffered I/O lines to card contacts C4, C7 and C8 ■ Step-up converter for V CC separately powered from ± ...
Page 2
Contents Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3
ST8024L List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 4
List of figures List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 5
ST8024L 1 Diagram Figure 1. Block diagram V DD 100nF 21 SUPPLY V INTERNAL DD REFERENCE ( VOLTAGE SENSE 18 PORADJ/1.8V ( OFF 20 RSTIN 19 CMDVCC 3 5V/3V 1 (1) CLKDIV2 2 (2) CLOCK ...
Page 6
... RST AUX1 15 14 CLK CGND SO-28/TSSOP-28 ST8024LCDR ST8024LCTR Table 2. Pin description Symbol Control of CLK frequency CLKDIV1 (internal 11 kΩ pull-up resistor connected to V Control of CLK frequency CLKDIV2 (internal 11 kΩ pull-down resistor connected selection for communication with the smartcard. Logic high CC selects 5 V operation and logic low selects 3 V operation ...
Page 7
ST8024L Table 2. Pin description (continued) Symbol Data line to and from card (C7) I/O (internal 11 kΩ pull-up resistor connected to V Auxiliary line to and from card (C8) AUX2 (internal 11 kΩ pull-up resistor connected to V AUX1 ...
Page 8
Maximum ratings 3 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/1.8V, n1 CMDVCC, PRES, PRES and OFF V Voltage on ...
Page 9
ST8024L 4 Electrical characteristics Table 6. Electrical characteristics over recommended operating condition (1) Symbol Parameter V Supply voltage DD Supply voltage for the V DDP step-up converter I Supply current DD Step-up converter supply I DDP current Falling threshold voltage ...
Page 10
Electrical characteristics Table 7. Step-up converter (1) Symbol Parameter f Clock frequency CLK Threshold voltage for step converter to change to th(vd-vf) voltage follower Output voltage on pin (average value 3.3 V, ...
Page 11
ST8024L Table 8. Card supply voltage characteristics (continued) (1) Symbol Parameter |I | Card supply current CC S Slew rate 3 MHz, unless otherwise noted. Typical values are ...
Page 12
Electrical characteristics Table 11. Data lines to card reader (pins I/O, AUX1 AND AUX2 with integrated 11 kΩ pull-up resistor (1) Symbol Parameter V Output voltage O(inactive) I Output current O(inactive) V High level output voltage OH ...
Page 13
ST8024L Table 12. Data lines to microcontroller (pins I/OUC, AUX1UC and AUX2UC with integrated 11 kΩ pull-up resistor to V (1) Symbol Parameter V High level output voltage OH V Low level output voltage OL V High level input voltage ...
Page 14
Electrical characteristics Table 15. Clock output to card reader (pin CLK) Symbol Parameter V Output voltage in inactive mode O(inactive) I Output current O(inactive) Low level output voltage High level output voltage Rise and ...
Page 15
ST8024L Table 19. Protection and limitation Symbol Parameter |I | Shutdown and limitation current pin V CC(SD) I limitation current pins I/O, AUX1 and AUX2 I/O(lim) I limitation current pin CLK CLK(lim) I limitation current pin RST RST(lim) T Shutdown ...
Page 16
Functional description 5 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 ...
Page 17
ST8024L 5.2.2 With an external divider on pin PORADJ In this case, a resistor bridge is applied to the PORADJ pin (see V are the external rising threshold voltage and the external falling threshold voltage TH(ext) fall ...
Page 18
Functional description The frequency change is synchronous, which means that during transition no pulse is shorter than the smallest period, and that the first and last clock pulses about the instant of change have the correct width. ...
Page 19
ST8024L 5.6 Activation sequence After power-on and after the internal pulse width delay, the system microcontroller can check the presence of a card using the signals OFF and CMDVCC as shown in If the card is in the reader (this ...
Page 20
Functional description Figure 5. Activation sequence using RSTIN and CMDVCC Figure 6. Activation sequence at t 20/33 3 Doc ID 17709 Rev 3 ST8024L CS17740 CS17750 ...
Page 21
ST8024L 5.7 Active mode When the activation sequence is completed, the ST8024L will be in its active mode. Data are exchanged between the card and the microcontroller via the I/O lines. The ST8024L is designed for cards without V the ...
Page 22
Functional description 5.9 V generator CC The V generator has a capacity to supply (max) continuously (max and 45 mA (max internal overload ...
Page 23
ST8024L Figure 8. Behavior of OFF, CMDVCC, PRES and V Figure 9. Emergency deactivation sequence (card extraction) CC Doc ID 17709 Rev 3 Functional description CS17780 CS17770 23/33 ...
Page 24
Functional description 5.11 V selection settings CC The ST8024L supports three smartcard V selection is controlled by the 1.8V and 5V/3V signals as shown in has priority over the 5V/3V. When the 1.8V pin is taken high, V any setting ...
Page 25
ST8024L 6 Applications Figure 10. Hardware hookup 10µF 100nF + +5V (1) 100nF (1) 100nF 100kΩ +3.3V 1. These capacitors must be < 350 mΩ ESR and be placed near the IC (within 10 mm). 2. ST8024L and the microcontroller ...
Page 26
Package mechanical data 7 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 ...
Page 27
ST8024L Figure 12. TSSOP-20 package mechanical drawing A PIN 1 IDENTIFICATION Table 25. TSSOP-20 package mechanical data Dimension Min Typ Max 1.2 ...
Page 28
Package mechanical data Figure 13. TSSOP-28 package mechanical drawing Table 26. TSSOP-28 package mechanical data Dimension 28/33 mm Min Typ Max 1.2 0.05 0.15 0.8 1 1.05 0.19 0.30 ...
Page 29
ST8024L Figure 14. SO-28 tape and reel schematic Table 27. SO-28 tape and reel mechanical data Dimension Min Typ Max 330 12.8 13.2 20.2 60 ...
Page 30
Package mechanical data Figure 15. TSSOP-20 tape and reel schematic Table 28. TSSOP-20 tape and reel mechanical data Dimension 30/33 mm Min Typ Max 330 12.8 ...
Page 31
ST8024L Figure 16. TSSOP-28 tape and reel schematic Table 29. TSSOP-28 tape and reel mechanical data Dimension Min Typ Max 330 12.8 13.2 20.2 60 ...
Page 32
Revision history 8 Revision history Table 30. Document revision history Date 19-Jul-2010 30-Jul-2010 27-Sep-2010 32/33 Revision 1 Initial release. 2 Updated Description, Updated Features, Table 3 Section 5.2.2, Section Doc ID 17709 Rev 3 ST8024L Changes Table ...
Page 33
... ST8024L Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...