74hct163a IK Semicon Co., Ltd, 74hct163a Datasheet - Page 6

• Manufacturer Part Number: 74hct163a
• Description: Presettable Counters
• Manufacturer: IK Semicon Co., Ltd

combination of a D flip-flop and a T flip-flop. When loading data from Preset inputs P0, P1, P2, and P3, the Load
signal is used to disable the Toggle input (Tn) of the flip-flop. The logic level at the Pn input is then clocked to the Q
output of the flip-flop on the next rising edge of the clock.
low.
The flip-flops shown in the circuit diagrams are Toggle-Enable flip-flops. A Toggle-Enable flip-flop is a
A logic zero on the Reset device input forces the internal clock (C) high and resets the Q output of the flip-flop
Figure 7.Expanded logic diagram
GND=Pin 8
V
CC
=Pin 16
IN74HCT163A
Rev. 00