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TDA8024TT Datasheet(PDF) 3 Page - NXP Semiconductors |
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TDA8024TT Datasheet(HTML) 3 Page - NXP Semiconductors |
3 / 29 page 2004 July 12 3 Philips Semiconductors Product specification IC card interface TDA8024 1 FEATURES • IC card interface • 3 or 5 V supply for the IC (VDD and GND) • Three specifically protected half-duplex bidirectional 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) • 3or5V ± 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 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, 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); not for TDA8024AT • Built-in debounce on card presence contacts • One multiplexed status signal OFF. 2 APPLICATIONS • IC card readers for banking • Electronic payment • Identification • Pay TV. 3 GENERAL DESCRIPTION The TDA8024 is a complete and cost-efficient analog interface for asynchronous 3 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 Philips Internet site (http://www.semiconductors.philips.com) and from “Application note AN10141”. 4 ORDERING INFORMATION TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TDA8024T SO28 plastic small outline package; 28 leads; body width 7.5 mm SOT136-1 TDA8024AT SO28 plastic small outline package; 28 leads; body width 7.5 mm SOT136-1 TDA8024TT TSSOP28 plastic thin shrink small outline package; 28 leads; body width 4.4 mm SOT361-1 |
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