杭州毛旺电子有限公司

D*CRIPTION
The TDA8024 is a complete low cost-efficient *og interface for asynchronous 3 or 5V *art 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 TAD8004AT. 

KEY FEATUR*
.IC card interface
.3 or 5V supply for the IC (GND and VDD)
.Three specifically protected half-duplex bi-directional buffered I/O lines to card contacts *, C7 and C8
.DC/DC converter for Vcc generation separately powered from a 5V ±20% supply (Vddp and PGND)
.3 or 5V ±5% regulated card supply voltage (Vcc) with appropriate decoupling has the following capabilities: -Icc <80mA at Vddp=4 to 6.5V -Handles current spikes of 40nAs up to 20MHz -Controls rise and fall times -Filtered overload detection at approximately 120mA
.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 *D protection on card side (>6kV)
.26 MHz integrated crystal oscillator
.Clock generation for cards up to 20MHz (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 *visor for spike-killing during power-on and 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

 
APPLICATIONS
.IC card readers for banking
.Electronic payment
.Identification .Pay TV.