Timing Diagrams

MM54C192MM74C192

TLF5901 – 4

Note 1

Clear ouptuts to zero

Note 2

Load (preset) to binary thirteen

Note 3

Count up to fourteen fifteen carry zero one and two

Note 4

Count down to one zero borrow fifteen fourteen and thirteen

MM54C193MM74C193

TLF5901 – 5

Note 1

Clear ouptuts to zero

Note 2

Load (preset) to BCD seven

Note 3

Count up to eight nine carry zero one and two

Note 4

Count down to one zero borrow nine eight and seven

Note A

Clear overrides load data and count inputs

Note B

When counting up count down input must be high when counting down count-up input must be high

4