Dual 1−of−4 Decoder/Demultiplexer   
High−Performance Silicon−Gate CMOS
   
The MC74HC139A is identical in pinout to the LS139. The device inputs are compatible with standard CMOS outputs; with pull−up resistors, they are compatible with LSTTL outputs.
   
Features
• Output Drive Capability: 10 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 μA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance with the Requirements Defined by JEDEC Standard
    No. 7A
• Chip Complexity: 100 FETs or 25 Equivalent Gates
• Pb−Free Packages are Available*