TDA8024T/C1,118 NXP

TDA8024 Standard smart card interface Rev. 4.0 3 June 2016 Product data sheet 1. General description The TDA8024 is a complete and cost-efficient analog interface for asynchronous 3 V or 5 V smart cards. It can be placed between the card and the microcontroller to perform all supply, protection and control functions. Very few external components are required. The TDA8024AT is a direct replacement for the TDA8004AT. More information can be obtained from the NXP internet site (www.nxp.com) and from Application note AN10141. CAUTION This device is sensitive to ElectroStatic Discharge (ESD). Observe precautions for handling electrostatic sensitive devices. Such precautions are described in the ANSI/ESD S20.20, IEC/ST 61340-5, JESD625-A or equivalent standards. 2. Features and benefits IC card interface 3 V or 5 V supply for the IC (V and GND) DD Three specifically protected half-duplex bidirectional buffered I/O lines to card contacts C4, C7 and C8 DC-to-DC converter for V generation separately powered from a 5 V 20% supply CC (V and PGND) DDP 3 V or 5 V 5% regulated card supply voltage (V ) with appropriate decoupling has CC the following capabilities: I < 80 mA at V = 4 V to 6.5 V CC DDP Handles current spikes of 40 nAs 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, V or V drop-out DD DDP 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) compatibilityTDA8024 NXP Semiconductors Standard smart card interface Supply supervisor for spike-killing during power-on and power-off and Power-on reset (threshold fixed internally or externally by a resistor bridge) not for TDA8024AT Built-in debounce on card presence contacts One multiplexed status signal OFF 3. Applications IC card readers for banking Electronic payment Identification Pay TV 4. Quick reference data Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit Power supplies V supply voltage 2.7 - 6.5 V DD V DC-to-DC converter V = 5 V I < 80 mA 4.0 5.0 6.5 V DDP CC CC supply voltage V = 5 V I < 20 mA 3.0 - 6.5 V CC CC I supply current V = 3.3 V f = 10 MHz DD DD XTAL card inactive - - 1.2 mA card active f = f -- 1.5 mA CLK XTAL C =30pF L I DC-to-DC converter V = 5 V f = 10 MHz DDP DDP XTAL supply current inactive mode - - 0.1 mA active mode f = f -- 10 mA CLK XTAL C =30pF I = 0 L CC Card supply V card suppy voltage 5 V card: CC (including ripple voltage) card active I < 80 mA DC 4.75 5.0 5.25 V CC card active current pulses 4.65 5.0 5.25 V I =40nAs p 3 V card: card active I < 65 mA DC 2.85 3.0 3.15 V CC card active current pulses 2.76 3.0 3.20 V I =40nAs p V ripple voltage on V f = 20 kHz to 200 MHz - - 350 mV CC(ripple)(p-p) CC ripple (peak-to-peak value) I card supply current V = 0 to 5 V - - 80 mA CC CC V = 0 to 3 V - - 65 mA CC TDA8024 All information provided in this document is subject to legal disclaimers. NXP Semiconductors N.V. 2016. All rights reserved. Product data sheet Rev. 4.0 3 June 2016 2 of 33