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.
|Published (Last):||18 January 2012|
|PDF File Size:||5.22 Mb|
|ePub File Size:||13.3 Mb|
|Price:||Free* [*Free Regsitration Required]|
Any datasheer, there is very little information about Line Drivers in general. Tristate mode also saves power by not driving the line when there is nothing to send.
This is used in situations where any of several components can “drive” the bus though hopefully not more than one at a time. Or the Altera can provide a good current flow to the servo without damaging it’s abilities?
How does a Line Driver actually works? – Electrical Engineering Stack Exchange
I mean, how the can increase the current with just sending the input to the output? As always, the Datasheet provides raw and not very good information about the actual component: Sign up using Facebook.
It can be used, eg, for a “bi-directional” bus between processor and memory or between processor and devices: 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. 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.
Email Required, but never shown. Link to AM26LS31 datasheet: The datasheet also states: Eminem Language barrier here, I think.
If you want more detail, you should start reading about how transistors work, and how they’re used to make the logic gates in the shown diagram. 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. The increased current is able to overcome the capacitance caused by having many devices on a bus. 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.
That datasheet gives everything you need to actually use a 74HC This chip does not perform any logical function; it is just giving the signal a strength boost.
Post as a guest Name. What do you think a buffer is? Eminem – What makes you think the input 774hc244 connected directly to the output?
74HC244 Datasheet PDF
In case it’s the apparent lack of power to the chip that’s confusing you: Home Questions Tags Users Unanswered. So, how do thy actually works? A line driver is simply a buffer. But how it works? I mean, it gives us the temperatures, but not how the actual component works The line driver also serves to isolate the local circuits from electrostatic discharge from connections that might go off the board.
So I’ve searched for days for information about the 74HC line driver.