December 14, 2008
What is latch in microcontrollers?
GreatsStar asked:
what is useness of latch or ALE pin in microcontroller Mega32. How it effect on address & data lines?
Baby Sleep Tonight
what is useness of latch or ALE pin in microcontroller Mega32. How it effect on address & data lines?
Baby Sleep Tonight
Written by: John
Filed Under: Microcontrollers
Tags: Address Data, Latch, Microcontrollers
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jdsheth2004
December 14, 2008 at 9:28 am
A latch is an electronic circuit used to store information in asynchronous sequential logic systems. One latch can store one bit of information. Latches often occur in multiples, some of which have special names, such as the ‘quad latch’ (which can store four bits) and the ‘octal latch’ (eight bits). Latches are devices which have no clock input and change output state only in response to data input, while flip-flops have data inputs but change output state only in response to a clock input.