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required digital clock IC

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sanjoy

Member
pls let me know a digital clock IC which can display-
1. hh:mm:ss
2. continue working during power failure by backup.

with minimum component required.
Thanks
 

Zez

New Member
MN6053 - MN6059, MN6091 - MN6096, MN6220, MN6250 - MN6265, MM5311 - MM5387(N). Hope it will help.
 

sanjoy

Member
ive search all ICs data sheet. here 5311 only serve my purpose. from net i found 5309-14 are nearly same. but these are not available.
 

Nigel Goodwin

Super Moderator
Most Helpful Member
ive search all ICs data sheet. here 5311 only serve my purpose. from net i found 5309-14 are nearly same. but these are not available.
You're looking for chips from a very LONG time ago, I wouldn't expect many clock chips to be in production these days?, or for the last 20 odd years.
 

k7elp60

Active Member
The NTE2061 is still available from Mouser.com. I have built several clocks using this IC.
 
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