Product Summary

The IDTQS74FCT2245T is an 8-bit non-inverting transceiver that hasthree-state outputs, ideal for bus-oriented applications. The Transmit/Receive (T/R) input determines the direction of data flow, either from A toB or B to A, and the Output Enable (OE) input enables the selected port foroutput. The QS74FCT2245 has a 25Ω resistor output that is useful fordriving transmission lines and reducing system noise. The QS74FCT2245 parts can replace the 245 series to reduce noise in an existing design. Allinputs have clamp diodes for undershoot noise suppression. All outputshave ground bounce suppression. Outputs will not load an active bus whenVcc is removed from the device.

Parametrics

ABSOLUTE MAXIMUM RATINGS:
(1)VTERM,Terminal Voltage with Respect to GND:-0.5 to +7V;
(2)TSTG,Storage Temperature:-65℃ to +150℃;
(3)IOUT,DC Output Current Max Current Sink/Pin:+120mA;
(4)IIK,Input Diode Current, VIN < 0:-20mA;
(5)IOK,DC Output Current, VOUT< 0:-50mA

Features

(1)CMOS power levels: <7.5mW static;
(2)Undershoot clamp diodes on all inputs;
(3)True TTL input and output compatibility;
(4)Ground bounce controlled outputs;
(5)Reduced output swing of 0 to 3.5V;
(6)Built-in 25Ω series resistor outputs reduce reflection and other system noise;
(7)Std., A, and C speed grades with 4.1ns tPD for C;
(8)IOL = 12mA;
(9)Available in SOIC and QSOP packages

Diagrams

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