8 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification,

and TI does not warrant its accuracy or completeness. TI’s customers are responsible for

determining suitability of components for their purposes, as well as validating and testing their design

implementation to confirm system functionality.

8.1 Application Information

The SN74ACT04-Q1 can be used to add an additional stage to a counter with an external flip-flop. Because

counters use a negative edge trigger, the flip-flop's clock input must be inverted to provide this function. This

function only requires one of the six available inverters in the SN74ACT04-Q1 device, so the remaining channels

can be used for other applications needing an inverted signal. Unused inputs must be terminated at VCC or GND.

Unused outputs can be left floating.

8.2 Typical Application

D-Typ e

Flip-Flop

Counter

2

0

2

1

2

2

2

3

2

4

Input

Clear

Q

CLR

Q

D

CLR

Figure 8-1. Typical Application Block Diagram

SN74ACT04-Q1

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