SN74HC (ACTIVE) Octal Buffers And Line Drivers With 3-State Outputs. Datasheet ( KB). Diagram click to expand contents. Functional Diagram. An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters . 2 × fo) where: 74HC; 74HCT Octal buffer/line driver; 3-state. Product data sheet. Table 1: Quick reference data. GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns.

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The line driver also serves to isolate the local circuits from electrostatic discharge from connections that might go off the board.

The functional diagram on that datasheet omits the power pins, but they are there and must be powered for the part to function. The second functionality is that it has a tristate output, which means that when the enable pin is not asserted the chip does not drive the output signal at all. Sign up using Facebook. Email Required, but never shown.

This means that it can set the line “high”, “low”, or can effectively disconnect itself from the line. What you put in one end comes out the other.

How does a Line Driver actually works? – Electrical Engineering Stack Exchange

How does a line driver actually work? Or the Altera can provide a good current flow to the servo without damaging it’s abilities?


The increased current is able to overcome the capacitance caused by having many devices on a bus. There are two principal functions of this line driver. This is used in situations where any of several components can “drive” the bus though hopefully not more than one at a time.

Dztasheet can be used, eg, for a “bi-directional” bus between processor and memory or between processor and devices: This allows you to have multiple line drivers on the same wire, and as long as they properly take turns driving it they can share the single connection.

Sign up or log in Sign up using Google. So I’ve searched for days for information about the 74h2c44 line driver. Anyways, if you look around a bit, you can find some slightly better datasheets that have more detailed internal diagrams. I’m not sure what you mean by “how it works”.

Jeff Bell 1 4. Post as a guest Name. But how it works?

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The datasheet also states: This chip does not perform any logical function; it is just giving the signal a strength boost. Post Your Answer Datashret By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policy datashheet, and that your continued use of the website is subject to these policies. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. How does a Line Driver actually works?


I mean, it gives us the temperatures, but not how datasgeet actual component works Link to AM26LS31 datasheet: That power is used by each buffer element to increase the load it can drive.


Sign up using Email and Password. All I see in the inner structure is enables and input to outpuut wires.

The datasheet tells you pretty much everything you need to actually use the part, though NXP does tend to be a bit sparse on internal details.

Low-power Schottky circuitry reduces power consumption without sacrificing speed. The enable function is common to all four drivers and offers the choice of an active-high or active-low enable G, G input. A line driver is simply a buffer. The circuits that are driving the inputs may not have the power to drive the impedance of a longer wire length.

That datasheet gives everything you need to actually use a 74HC You can think of it as the logic gate equivalent of an amplifier.

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Any way, there is very little information about Line Drivers in general. It sounds like you’re looking for a equivalent circuit.

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