HD74HC564P 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HD74HC564P

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

Hitachi -> Renesas Electronics 

HD74HC564/HD74HC574

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

Description

These devices are positive edge triggered flip-flops. The difference between HD74HC564 and

HD74HC574 is only that the former has inverting outputs and the latter has noninvertering outputs.

Data at the D inputs, meeting the set-up and hold time requirements, are transferred to the Q or Q outputs

on positive going transitions of the clock (CK) input. when a high logic level is applied to the output cotrol

(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 Output) = 13 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

Outputs

Output Control Clock

Data

HD74HC564

HD74HD574

L

H

L

H

L

L

H

L

L

L

H

X

X

Q0

Q0

X

Z

Z

Q0 : level of Q before the indicated Steady-sate input conditions were established.

Q0 : complement of Q0 or level of Q before the indicated Steady-state input Conditions were established.

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