74LS139 DATASHEET PDF

No Preview Available! In high-performance memory systems these decoders can be used to minimize the effects of system decoding. When used with high-speed memories, the delay times of these decoders are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The DM74LS decodes one-of-eight lines, based upon the conditions at the three binary select inputs and the three enable inputs.

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The Enable can be used as the Data input for a 1 -of-4 demultiplexer application. W hen , unused inputs should either be tied directly to ground or tied down with 75 Q resistors.

Speeds are comparable to the low power , decoder has an active-low enable input which can be used as a data line.

When employed with high-speed memories utilizing a fast enable ,. The Enable can be used as the Data input for a 1-of-4 demultiplexer applica tion. When employed with high-speed ,. The LS is fabricated with the Schottky barrier diode process for high speed and is com pletely com patible with all Motorola TTL families.

Abstract: of ic 74ls fg Text:. T he L S 1 3 9 is fabricated with the Schottky barrier diode process for h igh speed and is completely compatible with all Motorola TTL families. When used with the AT89C51 , specified, the program will respond with an error message. The control programs are menu-driven, and , when programming is complete.

They contain two independent 1 -of-4 decoders each with a single active-low enable input. Each circuit decodes a 2-bit address to 1 -of-4 active-low outputs , inputs Logic Diagram Pin Configuration 1?

The device. This state-of-the-art technology, combined with innovative circuit design techniques, provides , are packaged in both 16 pin DIPs and 20 pin LCCs. The IDT72T employs the additional advantage of another active-low chip select on each of the two one-of-four decoders, along with an active-low chip. OK, Thanks We use Cookies to give you best experience on our website.

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74LS139 DEMULTIPLEXER. Datasheet pdf. Equivalent

We use Cookies to give you best experience on our website. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies. Please see our Privacy Policy for more information. The Enable can be used as the Data input for a 1 -of-4 demultiplexer application. The two select inputs to the decoder. The Enable can be used as the Data input for a 1-of-4 demultiplexer applica tion.

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74LS139 Datasheet

The device has two independent decoders, each accepting two. Each half of the LS can be used as a function. The LS is. The Flatpak version.

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In high-performance memory systems these decoders can be used to minimize the effects of system decoding. When used with high-speed memories, the delay times of these decoders are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The DM74LS decodes one-of-eight lines, based upon the conditions at the three binary select inputs and the three enable inputs. Two active-low and one active-high enable inputs reduce the need for external gates or invert- ers when expanding. A line decoder can be imple- mented with no external inverters, and a line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications.

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