DTSFA
Electrical
- May 31, 2012
- 41
hi
i have built a multiplex circuit ,
555 timer generates clock, into
BCD counter MC14518B-D,
this BCD output feeds into a ADG406 multiplex, each 'decimal' output feeds led,
LEDs clock nicely through, but, at does seems to only count up to decimal 8, LED 8 ?
any ideas, have I missed anything fundaemantal on the BCD chip ?
thanks
i have built a multiplex circuit ,
555 timer generates clock, into
BCD counter MC14518B-D,
this BCD output feeds into a ADG406 multiplex, each 'decimal' output feeds led,
LEDs clock nicely through, but, at does seems to only count up to decimal 8, LED 8 ?
any ideas, have I missed anything fundaemantal on the BCD chip ?
thanks