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TDA8025HN 数据表(PDF) 1 Page - NXP Semiconductors |
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TDA8025HN 数据表(HTML) 1 Page - NXP Semiconductors |
1 / 38 page 1. General description The TDA8025 is a cost-effective analog interface for asynchronous smart cards operating at 3 V, 1.8 V or optionally, 1.2 V. Using few external components, the TDA8025 provides integrated supply, protection and control functions for a range of applications. 2. Features I Integrated circuit smart card interface I 3 V, 1.8 V or 1.2 V smart card supply I Low power consumption in inactive mode I Three protected, half duplex, bidirectional buffered input/output lines (C4, C7 and C8) I VCC regulation: N 3 V, 1.8 V or optionally 1.2 V at ± 5 % using one 220 nF and one 470 nF low ESR multilayer ceramic capacitor. N Current pulse handling for pulses of 40 nAs at VCC = 3 V, 15 nAs at VCC = 1.8 V or VCC = 1.2 V up to 20 MHz I Thermal and short-circuit protection for all card contacts I Automatic activation and deactivation sequences triggered by short-circuit, card take-off, overheating, falling VDD(INTF) and VDD(INTREGD) I Enhanced card-side ElectroStatic Discharge (ESD) protection of > 6 kV I Clock signal using the internal oscillator or an external crystal (≤ 26 MHz) connected to pin XTAL1 I Card clock generation up to 20 MHz with synchronous frequency changes of fxtal, 1 ⁄ 2 fxtal, 1 ⁄ 4 fxtal or 1 ⁄ 8 fxtal using pins CLKDIV1 and CLKDIV2 I Non-inverted control of pin RST using pin RSTIN I NDS certified I Supply supervisors during power on and off: N VDD(INTREGD) using a fixed threshold N VDD(INTF) using resistor bridge threshold adjustment I Built-in debouncing on card presence contacts (typically 4.5 ms) I Multiplexed status signal using pin OFFN 3. Applications I Pay TV I Electronic payment I Identification I Bank card readers TDA8025 IC card interface Rev. 01 — 6 April 2009 Product data sheet |
类似零件编号 - TDA8025HN |
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类似说明 - TDA8025HN |
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