S sanjoy Member May 3, 2009 #1 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
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
Z Zez New Member May 3, 2009 #2 MN6053 - MN6059, MN6091 - MN6096, MN6220, MN6250 - MN6265, MM5311 - MM5387(N). Hope it will help.
S sanjoy Member Jul 29, 2009 #5 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.
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 Jul 29, 2009 #6 sanjoy said: 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. Click to expand... 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.
sanjoy said: 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. Click to expand... 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 Jul 29, 2009 #7 The NTE2061 is still available from Mouser.com. I have built several clocks using this IC.