TDA8025 - NXP Semiconductors

TDA8025 IC card interface

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 I I I I Integrated circuit smart card interface 3 V, 1.8 V or 1.2 V smart card supply Lo.

Features

I I I I I Integrated circuit smart card interface 3 V, 1.8 V or 1.2 V smart card supply Low power consumption in inactive mode Three protected, half duplex, bidirectional buffered input/output lines (C4, C7 and C8) 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 Thermal and short-circuit protection for all card contacts Automatic activation and deactivation sequences triggered by short-circuit, card take-of.