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2

Functional Description

The ACT16374 consists of sixteen edge-triggered flip-flops

with individual D-type inputs and 3-STATE true outputs.

The device is byte controlled with each byte functioning

identically, but independent of the other. The control pins

can be shorted together to obtain full 16-bit operation.

Each byte has a buffered clock and buffered Output Enable

common to all flip-flops within that byte. The description

which follows applies to each byte. Each flip-flop will store

the state of their individual D inputs that meet the setup and

tents of the flip-flops are available at the outputs. When

flip-flops.

Truth Tables

H

= HIGH Voltage Level

L

= LOW Voltage Level

X

= Immaterial

Z

= HIGH Impedance

 = LOW-to-HIGH Transition

Logic Diagrams

Byte 1 (0:7)

Byte 2 (8:15)

Inputs

Outputs



LH

H



LL

L

L

L

X

(Previous)

XHX

Z

Inputs

Outputs



LH

H



LL

L

L

L

X

(Previous)

XHX

Z