ST8004CDR

ST8004 SMARTCARD INTERFACE ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 3 OR 5 V SUPPLY FOR THE IC STEP-UP CONVERTER FOR VCC GENERATION 3 SPECIFIC PROTECTED HALF DUPLEX BI-DIRECTIONAL BUFFERED I/O LINES AUTOMATIC ACTIVATION AND DEACTIVATION SEQUENCES THERMAL AND SHORT-CIRCUIT PROTECTIONS ON ALL CARD CONTACTS 26 MHz INTEGRATED CRYSTAL OSCILLATOR CLOCK GENERATION FOR THE CARD UP TO 20MHz WITH SYNCHRONOUS FREQUENCY CHANGES ISO7816-3 COMPATIBLE ENHANCED ESD PROTECTION ON CARD SIDE SO-28 PACKAGE UNDER VOLTAGE LOCKOUT PROTECTION SELECTABLE TO 3V OR 2.2V SUPPLY SUPERVISOR INTEGRATED SOP DESCRIPTION The ST8004 is a complete low cost analog interface for asynchronous 3V and 5V smart cards. It can be placed between the card and the microcontroller with few external components to perform all supply protection and control functions. Main applications are: smartcard readers for Set Top Box, IC card readers for banking, identification. ORDERING CODES Type Temperature Range Package Comments ST8004CD ST8004CDR 0 to 85 °C 0 to 85 °C SO-28 (Tube) SO-28 (Tape & Reel) 27 parts per tube / 12 tube per box 1000 parts per reel March 2004 1/19 ST8004 BLOCK DIAGRAM 2/19 ST8004 PIN CONFIGURATION PIN DESCRIPTION PlN N° SYMBOL 1 2 CLKDIV1 CLKDIV2 NAME AND FUNCTION 3 5V/3V Control of CLK Frequency Control of CLK Frequency VCC selection pin. 4 5 PGND C1+ VDDP Power Ground for Step-Up converter External Cap. for Step-Up converter Power Supply for Step-Up converter 6 7 8 9 10 C1VUP PRES PRES 11 I/O 12 AUX2 External Cap. Step-Up converter Output of Step-Up converter Card Presence Input (Active Low) Card Presence Input (Active High) Data Line to and from card (C7) (internal 10kΩ pull-up resistor connected to VCC) 13 AUX1 Auxiliary line to and from card (C8) (internal 10kΩ pull-up resistor connected to VCC) Auxiliary line to and from card (C4) (internal 10kΩ pull-up resistor connected to VCC) 14 15 16 17 CGND CLK RST VCC Ground for card signal (C5) Clock to card (C3) Card Reset (C2) Supply Voltage for the card (C1) 18 VTHSEL Deactivation threshold selector pin (under voltage lock-out) 19 CMDVCC 20 21 RSTIN VDD Card Reset Input from MCU Supply Voltage 22 23 24 25 GND OFF XTAL1 XTAL2 26 I/OUC Start activation sequence input (Active Low) 27 AUX1UC Ground Interrupt to MCU (active Low) Crystal or external clock input Crystal connection (leave this pin open if external clock is used) Data Line to and from MCU (internal 10kΩ pull-up resistor connected to VDD) Auxiliary line to and from MCU (internal 10kΩ pull-up resistor connected to VDD) 28 AUX2UC Auxiliary line to and from MCU (internal 10kΩ pull-up resistor connected to VDD) 3/19 ST8004 ABSOLUTE MAXIMUM RATINGS Symbol Parameter VDD, VDDP Supply Voltage Vn2 Voltage on pins XTAL1, XTAL2, 5V/3V, RSTIN, AUX2UC, AUX1UC, I/OUC, CLKDIV1, CLKDIV2, VTHSEL, CMDVCC, PRES, PRES and OFF Voltage on card contact pins I/O, RST, AUX1, AUX2 and CLK Vn3 Voltage on pins VUP, S1 and S2 Vn1 MIL-STD-883 class 3 on card contact pins, PRES and PRES (Note 1, 2) MIL-STD-883 class 2 on µC contact pins and RSTIN (Note 1, 2) ESD1 ESD2 Min Max Unit -0.3 7 V -0.3 VDD + 0.3 V -0.3 VCC + 0.3 V 9 V -6 6 KV -2 2 KV Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Note 1: All card contacts are protected against any short with any other card contact. Note 2: Method 3015 (HBM, 1500 Ω, 100 pF) 3 positive pulses and 3 negative pulses on each pin referenced to ground. THERMAL DATA Symbol Rthj-amb Parameter Thermal Resistance Junction-ambient Temperature Condition Value Unit In free air 70 °K/W RECOMMENDED OPERATING CONDITIONS Symbol TA Parameter Test Conditions Min. Temperature Range Typ. -25 Max. Unit 85 °C ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING (VDD = 3.3V, VDDP = 5V, fXTAL = 10MHz, unless otherwise noted. Typical values are to Ta = 25°C) Symbol Parameter VDD Supply Voltage VDDP Supply Voltage for the voltage doubler VO(VUP) VI(VUP) IDD IP Vth3 Threshold Voltage on VDD VHYS(th2) Hysteresis on Vth2 VHYS(th3) Hysteresis on Vth3 4/19 VTHSEL = VDD or floating VTHSEL = GND VTHSEL = VDD or floating VTHSEL = GND Pulse width of the internal Alarm pulse Delay of Internal filter VTHSEL = GND Typ. 2.7 3.150 To comply with VI(RIPPLE)(P-P) specifications Supply Current for Step-Up Inactive mode converter Active mode; fCLK = fXTAL; CL = 30pF Threshold Voltage on VDD ∆THFIL Min. Output Voltage on pin VUP from step-up converter Input Voltage to be applied on VUP in order to block the step-up converter Supply Current Inactive mode Active mode; fCLK = fXTAL; CL = 30pF Vth2 tW Test Conditions VTHSEL = VDD or floating VTHSEL = GND 4.5 4.75 Max. Unit 6.5 V 6.5 5 6.5 5.25 5.5 7 ICC = 0 ICC = 65 mA V V 9 V 1.2 1.5 mA 0.1 18 mA 150 2.2 2.4 2.95 3.05 V 50 150 mV 0 V mV 6 20 ms 5 50 µs ST8004 CARD SUPPLY VOLTAGE CHARACTERISTICS (VDD = 3.3V, VDDP = 5V, fXTAL = 10MHz, unless otherwise noted. Typical values are to Ta = 25°C) (Note 1) Symbol VCC Parameter Output Voltage including ripple Test Conditions SR Typ. Max. Unit V Inactive Mode Inactive Mode; ICC = 1 mA -0.1 -0.1 0.1 0.4 Active Mode; VDDP = 5V ± 5% 5 V card |ICC| < 65 mA DC 3 V card 4.75 2.85 5.25 3.15 Active Mode; single current pulse of 100 mA; 2 µs 4.65 2.85 4.65 2.76 5.25 3.15 5.25 3.15 Active Mode; current pulse of 40 nAs with |ICC|