DESCRIPTION:
The IDT54/74FCT139T/AT/CT are dual 1-of-4 decoders built using an advanced dual metal CMOS technology. These devices have two independent decoders, each of which accept two binary weighted inputs (A0-A1) and provide four mutually exclusive active LOW outputs (O0-O3). Each decoder has an active LOW enable (E). When E is HIGH, all outputs are forced HIGH.

FEATURES:
• Std., A and C speed grades
• Low input and output leakage ≤1µA (max.)
• CMOS power levels
• True TTL input and output compatibility
   – VOH = 3.3V (typ.)
   – VOL = 0.3V (typ.)
• High drive outputs (-15mA IOH, 48mA IOL)
• 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, QSOP, CERPACK and LCC packages