Difference between Buffer and Latch

[aman]

Latch is something once enabled holds the value for infinite time as
long has it has Vcc and ground connections.

Buffer is something which holds the value for finite time during which
you need to read it. It can essentially be a part of sample and hold
circuit.

Please correct me if I am wrong in defining any of the two devices.

 

[R. Steve Walz]

aman wrote:

Latch is something once enabled holds the value for infinite time as
long has it has Vcc and ground connections.

Buffer is something which holds the value for finite time during which
you need to read it. It can essentially be a part of sample and hold
circuit.

Please correct me if I am wrong in defining any of the two devices.
--------------

You're wrong. A buffer merely strengthens a aignal so that it can
be fanned out with integrity or drive a heftier device. Any amplifier
is a buffer. It outputs a state only as long as the state persists
on its input(s).

A latch remembers the last state it was told to with another latching
signal.

-Steve
--
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[Rex]

On Tue, 22 Mar 2005 05:42:10 GMT, "R. Steve Walz" <rstevew@armory.com>
wrote:

You're wrong. A buffer merely strengthens a aignal so that it can
be fanned out with integrity or drive a heftier device.

Or polishes the floors.

A latch remembers the last state it was told to with another latching
signal.

Or secures the doors.