what is the use of ALE in 8051. how does it work

Status
Not open for further replies.
ALE -- Address Latch Enable.
8051 multiplexes data and address bus in AD0-AD7 pins.
the same pins AD0-AD7 carries address A0-A7 when address is sent.
carries data D0-D7 when it carries data.

to indicate when it carries address, ALE is emitted by 8051.

so use ALE as latch signal with AD0-AD7 , and you get the output as A0-A7.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…