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 first is to provide a power gain. I mean, it gives us the temperatures, but not how the actual component works Dxtasheet how it works?

The enable function is common to all four drivers and offers the choice of an active-high or active-low enable G, G input. The line driver also serves to isolate the local circuits from electrostatic discharge from connections that might go off the board.

Jeff Bell 1 4. 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. How does a line driver actually work?

74HC244 SMD Octal Buffer IC

If you want more detail, you should start reading about how transistors work, and how they’re used to make the logic catasheet in the shown diagram. Email Required, but never shown. Post as a guest Name. It can be used, eg, for a “bi-directional” dwtasheet between processor and memory or between processor and devices: Anyways, if you look around a bit, you dataasheet find 774hc244 slightly better datasheets that have more detailed internal diagrams.


Hot Licks 3 8. I mean, how the can increase the current with just sending the input to the output? 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.

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74HC Datasheet(PDF) – Motorola, Inc

Sign up using Facebook. So, how do thy actually works? You can think of it as the logic gate equivalent of an amplifier. In case it’s the apparent lack of power to the chip that’s confusing you: It should be noted that the device identified above is a “tri-state” driver.

Eminem – What makes you think the input is connected directly to the output? Home Questions Tags Users Unanswered. Eminem 1 3 8.

That power is used by each buffer element to increase the load it can drive. This is used in situations where any of several components can “drive” the bus though hopefully not more than one at a time.

There are two principal functions of this line driver. I think that in order to reduce the current that the FPGA suplies to the servo, I need to put the in between them, thus reducing the “effort” from the Altera. What do you think a buffer is?


I’m 74uc244 sure what you mean by “how it works”. Any way, there is very little information about Line Drivers in general.

This means that it can 74hc24 the line “high”, “low”, or can effectively disconnect itself from the line. Sign up or log in Sign up using Google. Or the Altera can provide a good current flow to the servo without damaging it’s abilities? That datasheet gives everything you need to actually use a 74HC How does a Line Driver actually works? The circuits that are driving the inputs may not have the power to drive the impedance of a longer wire length.

Eminem Language barrier here, Datahseet think.

What you put in one end comes out the other. All I see in the inner structure is enables and input to outpuut wires. Sign up using Email and Password. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. 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.

This chip does not perform any logical function; it is just giving the signal a strength boost. Low-power Schottky circuitry reduces power consumption without sacrificing speed.

It sounds like you’re looking for a equivalent circuit. Link to AM26LS31 datasheet: It’s as if the chip were disconnected from the wire.