SCAN182374ASSC Просмотр технического описания (PDF) - Fairchild Semiconductor

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SCAN182374ASSC

D-Type Flip-Flop with 25Ω Series Resistor Outputs

Fairchild Semiconductor 

Functional Description

The SCAN182374A consists of two sets of nine edge-trig-

gered flip-flops with individual D-type inputs and 3-STATE

true outputs. The buffered clock and buffered Output

Enable pins are common to all flip-flops. Each set of the

nine flip-flops will store the state of their individual D inputs

that meet the setup and hold time requirements on the

Logic Diagram

LOW-to-HIGH Clock (ACP or BCP) transition. With the

Output Enable (AOE1 or BOE1) LOW, the contents of the

nine flip-flops are available at the outputs. When the Output

Enable is HIGH, the outputs go to the high impedance

state. Operation of the Output Enable input does not affect

the state of the flip-flops.

Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.

Block Diagrams

Byte-A

Note: BSR stands for Boundary Scan Register

Tap Controller

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