MC54HC163A Motorola, MC54HC163A Datasheet - Page 9

• Manufacturer Part Number: MC54HC163A
• Description: (MC54HC161A / MC54HC163A) Presettable Counters
• Manufacturer: Motorola

High–Speed CMOS Logic Data
DL129 — Rev 6
L=Disable
L=Disable
NOTE: When used in these cascaded configurations the clock f max guaranteed limits may not apply. Actual performance will
Enable P
Enable T
H=Count
H=Count
Reset
Clock
Reset
Clock
Load
Load
depend on number of stages. This limitation is due to set–up times between Enable (port) and clock.
Reset
Reset
Enable P
Enable T
Enable P
Enable T
Load
Load
Clock
Clock
Q 0 Q 1 Q 2 Q 3
Q 0 Q 1 Q 2 Q 3
Q 0 Q 1 Q 2 Q 3
Q 0 Q 1 Q 2 Q 3
Outputs
Outputs
Inputs
Inputs
Ripple
Ripple
Carry
Carry
Out
Out
TYPICAL APPLICATIONS CASCADING
Figure 11. N–Bit Synchronous Counters
Figure 12. Nibble Ripple Counter
Reset
Reset
Enable P
Enable T
Enable P
Enable T
Load
Load
Clock
Clock
9
Q 0 Q 1 Q 2 Q 3
Q 0 Q 1 Q 2 Q 3
Q 0 Q 1 Q 2 Q 3
Q 0 Q 1 Q 2 Q 3
Outputs
Outputs
Inputs
Inputs
Ripple
Ripple
Carry
Carry
Out
Out
MC54/74HCT161A MC54/74HCT163A
Reset
Reset
Enable P
Enable T
Enable P
Enable T
Load
Load
Clock
Clock
Q 0 Q 1 Q 2 Q 3
Q 0 Q 1 Q 2 Q 3
Q 0 Q 1 Q 2 Q 3
Q 0 Q 1 Q 2 Q 3
Outputs
Outputs
Inputs
Inputs
Ripple
Ripple
Carry
Carry
Out
Out
To More
Significant
Stages
To More
Significant
Stages
MOTOROLA