IDT74FCT257CT

FAST CMOS QUAD 2-INPUT MULTIPLEXER Integrated Device Technology, Inc. IDT54/74FCT157T/AT/CT/DT IDT54/74FCT257T/AT/CT/DT IDT54/74FCT2257T/AT/CT FEATURES: Common features: – Low input and output leakage ≤1µA (max.) – CMOS power levels – True TTL input and output compatibility – VOH = 3.3V (typ.) – VOL = 0.3V (typ.) – Meets or exceeds JEDEC standard 18 specifications – Product available in Radiation Tolerant and Radiation Enhanced versions – Military product compliant to MIL-STD-883, Class B and DESC listed (dual marked) – Available in DIP, SOIC, SSOP, QSOP, CERPACK and LCC packages Features for FCT157T/257T: – Std., A, C and D speed grades – High drive outputs (-15mA IOH, 48mA IOL) Features for FCT2257T: – Std., A, and C speed grades – Resistor outputs (-15mA IOH, 12mA IOL Com.) (-12mA IOH, 12mA IOL Mil.) – Reduced system switching noise DESCRIPTION: The FCT157T, FCT257T/FCT2257T are high-speed quad 2-input multiplexers built using an advanced dual metal CMOS technology. Four bits of data from two sources can be selected using the common select input. The four buffered outputs present the selected data in the true (non-inverting) form. The FCT157T has a common, active-LOW, enable input. When the enable input is not active, all four outputs are held LOW. A common application of ‘FCT157T is to move data from two different groups of registers to a common bus. Another application is as a function generator. The ‘FCT157T can generate any four of the 16 different functions o...