HD74HC374 Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics

Número de pieza

componentes Descripción

Lista de partido

HD74HC374

Octal D-type Flip-Flops (with 3-state outputs) Octal D-type Flip-flops (with inverted 3-state outputs)

Hitachi -> Renesas Electronics 

HD74HC374/HD74HC534

Octal D-type Flip-Flops (with 3-state outputs)

Octal D-type Flip-flops (with inverted 3-state outputs)

Description

These devices are positive edge triggered flip-flops. The difference between HD74HC374 and

HD74HC534 is only that the former is a true outputs and the latter is a false outputs. Data at the D inputs,

meeting the setup and hold time requirements, are transferred to the Q outputs on positive going transitions

of the clock (CK) input. When a high logic level is applied to the output control (OC) input, all outputs go

to a high impedance state, regardless of what signals are present at the other inputs and the state of the

storage elements.

Features

• High Speed Operation: tpd (Clock to Q) = 18 ns typ (CL = 50 pF)

• High Output Current: Fanout of 15 LSTTL Loads

• Wide Operating Voltage: VCC = 2 to 6 V

• Low Input Current: 1 µA max

• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

Function Table

Output Control Clock

D

L

H

L

L

L

L

X

H

X

X

X : irrelevant

Z : off (high-impedance) state of a 3-state output.

HD74HC374

Q

H

L

No change

Z

HD74HC534

Q

L

H

No change

Z

Share Link: