74ls139 74139 TTL Dual Four-Line Decoder Demultiplexer Demux
74HC139 is a chip that contains two independent 2-to-4 line decoders/demultiplexers, each take two binary inputs and turn them into four separate outputs.
This chip is useful when you want to select one of several signals or routes using binary signals, like in memory address decoding in computers.
The 74HC139 comes in a 16-pin package, and you need to connect it to power before you can use it. Most 7400 ICs support a VCC voltage of 5V. One difference between the HC and LS version of the chip is that the 74HC139 supports 2V to 6V, while the 74LS139 only supports 5V.
74HC chips can normally supply a maximum of 4 mA from an output pin. If you’re using the 74LS version, the maximum current you can pull out of one output pin is 0.4 mA when the pin is high (sourcing) or 8 mA when the pin is low (sinking).
Logic Type: Decoder/Demultiplexer
-Number of Outputs: 8
-Line Configuration 2:4
-Maximum Supply Voltage: 5.25 V
-Minimum Operating Temperature: 0 ° C
-Maximum Operating Temperature: 70 ° C
-Package: DIP