MM54C192 National, MM54C192 Datasheet - Page 4

• Manufacturer Part Number: MM54C192
• Description: Synchronous 4-Bit Up/Down Decade Counter
• Manufacturer: National

Timing Diagrams
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
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
MM54C192 MM74C192
MM54C193 MM74C193
4
TL F 5901– 4
TL F 5901– 5