TDA8034AT/C1,112 NXP

TDA8034T TDA8034AT Smart card interface Rev. 3.1 13 December 2012 Product data sheet 1. General description The TDA8034T/TDA8034AT is a cost-effective analog interface for asynchronous and synchronous smart cards operating at 5 V or 3 V. Using few external components, the TDA8034T/TDA8034AT provides all supply, protection and control functions between a smart card and the microcontroller. 2. Features and benefits Integrated circuit smart card interface in an SO16 package 5 V or 3 V smart card supply One protected half-duplex bidirectional buffered I/O line (C7) V regulation: CC 5V 5 % or 3 V 5 % using two low ESR multilayer ceramic capacitors: one of 220 nF and one of 470 nF current spikes of 40 nA/s (V = 5 V and 3 V) or 15 nA/s (V =1.8 V) up to CC CC 20 MHz, with controlled rise and fall times and filtered overload detection of approximately 120 mA Thermal and short-circuit protection for all card contacts Automatic activation and deactivation sequences triggered by a short-circuit, card take-off, overheating, falling V , V or V DD DD(INTF) DDP Enhanced card-side ElectroStatic Discharge (ESD) protection of > 6 kV External clock input up to 26 MHz connected to pin XTAL1 Card clock generation up to 20 MHz using pin CLKDIV1 with synchronous frequency changes of: 1 1 f or f on TDA8034T 2 xtal 4 xtal 1 f or f on TDA8034AT xtal 2 xtal Non-inverted control of pin RST using pin RSTIN Compatible with ISO 7816, NDS and EMV 4.2 payment systems Supply supervisor for killing spikes during power on and off: using a fixed threshold using an external resistor bridge with threshold adjustment Built-in debouncing on card presence contacts (typically 4.5 ms) Multiplexed status signal using pin OFFN 3. Applications Pay TV Electronic paymentTDA8034T TDA8034AT NXP Semiconductors Smart card interface Identification Bank card readers 4. Quick reference data Table 1. Quick reference data V =5V V =3.3 V V =3.3 V f =10MHz GND = 0V T = 25 C unless otherwise specified. DDP DD DD(INTF) xtal amb Symbol Parameter Conditions Min Typ Max Unit Supply V power supply voltage pin V 4.85 5 5.5 V DDP DDP V supply voltage pin V 2.7 3.3 3.6 V DD DD V interface supply voltage pin V 1.6 3.3 V +0.3 V DD(INTF) DD(INTF) DD I supply current Shutdown mode - - 35 A DD I power supply current Shutdown mode f -- 5 A DDP xtal stopped Active mode -- 1.5 mA 1 f = f no load CLK 2 xtal I interface supply current Shutdown mode - - 6 A DD(INTF) 1 Card supply voltage: pin V CC V supply voltage active mode CC 5V card I < 65 mA DC 4.75 5.0 5.25 V CC current pulses of 4.65 5.0 5.25 V 40 nA/s at I <200 mA CC t < 400 ns V peak-to-peak ripple voltage from 20 kHz to 200 MHz - - 350 mV ripple(p-p) I supply current V = 0 V to 5 V or 3 V - - 65 mA CC CC General t deactivation time see Figure 7 on page 11 35 90 250 s deact P total power dissipation T = 25 C to +85 C- - 0.25 W tot amb T ambient temperature 25 - +85 C amb 1 To meet these specifications, V should be decoupled to pin GND using two ceramic multilayer capacitors of low ESR with values of CC either 100 nF or one 220 nF and one 470 nF. 5. Ordering information Table 2. Ordering information Type number Package Name Description Version TDA8034T/C1 SO16 plastic small outline package 16 leads body width 3.9 mm SOT109-1 TDA8034AT/C1 TDA8034T TDA8034AT All information provided in this document is subject to legal disclaimers. NXP B.V. 2012. All rights reserved. Product data sheet Rev. 3.1 13 December 2012 2 of 30