HD74BC374A 查看數據表（PDF） - Renesas Electronics

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HD74BC374A

Octal D Type Flip Flops With 3 State Outputs

Renesas Electronics 

HD74BC374A

Octal D Type Flip Flops With 3 State Outputs

REJ03D0284–0300Z

(Previous ADE-205-010A (Z))

Rev.3.00

Jul.16.2004

Description

The HD74BC374A provides high drivability and operation equal to or better than high speed bipolar standard logic IC

by using Bi-CMOS process. The device features low power dissipation that is about 1/5 of high speed bipolar logic IC,

when the frequency is 10 MHz. The device has eight edge triger D type flip flop with three state outputs in a 20 pin

package. Data at the D inputs meeting set up reguirements, are transferred to the Q outputs on positive going transitions

of the clock input. When the latch enable goes low, data at the D inputs will be retained at the outputs until latch enable

returns high again. When a high logic level is applied to the output control 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

• Input/Output are at high impedance state when power supply is off.

• Built in input pull up circuit can make input pins be open, when not used.

• TTL level input

• Wide operating temperature range

Ta = –40 to + 85°C

• Ordering Information

Part Name

HD74BC374AFPEL

Package Type Package Code

Package

Abbreviation

SOP-20 pin (JEITA) FP-20DAV

FP

Taping Abbreviation

(Quantity)

EL (2,000 pcs/reel)

Function Table

Inputs

G

CK

nD

H

X

X

L

L

L

H

L

X

H : High level

L : Low level

X : Immaterial

Z : High impedance

: Low to high transition

Z

L

H

No change

Output

nQ

Rev.3.00, Jul.16.2004, page 1 of 8

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