Latch and buffer

May we assume that you're talking about electronic integrated circuits?

A latch is a digital IC which holds the data put into it, 1 or 0, until cleared.

An analog sample and hold performs a similar function in that it holds an analog value upon command until cleared.

A buffer is either analog or digital, and it increases the power of the input signal without changing the value. That is, a digital buffer may be used to increase the fanout of a CMOS IC, which has a limited output power. And an analog buffer will increase the output power of a small signal, effectively lowering the output impedance.

Further, a buffer is a thing that can receive a lot of data at high speed from one device, and release it at a slower speed to another device, thereby providing a facility to match the speeds of the two devices.

Ahh . . . I forgot about that definition of buffer . . .

a buffer can also keep a load/input from loading down a stage before it, audio or sort.

Yup..like PW says.

A buffer puts out what comes in with virtually no delay (they can be inverting or non-inverting) .

A latch will (as it's name suggests) hold the data which is put into it and present this at the output. The input data may change but the output data stays the same once it has been latched (until another latch signal catches a fresh set of input data)

Dunno if that is clearer or not....?

a latch is the device which is level triggered but the buffer is a simple and temporary storage device which stores the present value and previous value.

sanmani

???!!! a buffer doesn't store....

A latch can store.

Buffer in Electronics to extend "Fan-Out" ie number of of out-put Nodes [Load] is increasedwithout loading the previous stage.In Digital-Electronics it holds the data till it is needed.In Computer language "in copying data" Copied in Buffer till required to be written on Media.See: Image

To #3

Buffer is always Non-Inverting.All loops [Circuits] introduce delay. In actual design delays in one path is compensated by inserting "Delay-lines" in the other path to Sync [Match the time of different paths].

Buffer is always Non-Inverting.

Bong...wrong

Hex inverting buffer data sheet.

I have 'em in the circuits I design and they are definitely not figments of my imagination.

Regards

Thanks very much for your prompt correction & info

buffer is used to prevent leakage of current as a result of which the digital signal goes to the undefined state...which is neither low nor high

Latch is used to store any instantenous response on behalf of which any kind of decision making has to be done

buffer is used to prevent leakage of current as a result of which the digital signal goes to the undefined

Not exactly. we ususally speak buffer as insulation from front and behind. not only current but voltalge.

To top thread.

so you have to know again.

latch, memory and register etc.

very similar with wach other.

Does that mean that there is basically no difference between an analog buffer and digital buffer ie. I can use a digital buffer in an analog circuit (though I never tried that before)?

ah, itwas last year's,

on principle, there are no distinct.you can generally use alternatively.

mostly this is only follower.

but you hve to understand, and you hve to pay attation to power rate.and level.