© Semiconductor Components Industries, LLC, 1983

November, 2017 − Rev. 2

1

Publication Order Number:

MM74HC574/D

MM74HC574

3-State Octal D-Type

Edge-Triggered Flip-Flop

The MM74HC574 high speed octal D−type flip−flops utilize

advanced silicon−gate P−well CMOS technology. They possess the

high noise immunity and low power consumption of standard CMOS

integrated circuits, as well as the ability to drive 15 LS−TTL loads.

Due to the large output drive capability and the 3−STATE feature,

these devices are ideally suited for interfacing with bus lines in a bus

organized system.

These devices are positive edge triggered flip−flops. Data at the D

inputs, meeting the set−up 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.

The 74HC logic family is speed, function, and pinout compatible with

the standard 74LS logic family. All inputs are protected from damage

Features

Rating

Symbol

Value

Unit

Supply Voltage

−0.5 to +

7.0 V

V

DC Input Voltage

+ 1.5 V

V

DC Output Voltage

+ 0.5 V

V

Clamp Diode Current

±20

mA

DC Output Current, per pin

±35

mA

±70

mA

Storage Temperature Range

−65 to

+150

°C

Power Dissipation (Note 2)

S.O. Package only

600

500

mW

Lead Temperature (Soldering 10 s)

260

°C

Stresses exceeding those listed in the Maximum Ratings table may damage the

device. If any of these limits are exceeded, device functionality should not be

assumed, damage may occur and reliability may be affected.

1. Unless otherwise specified all voltages are referenced to ground.

2. Power Dissipation temperature derating — plastic “N” package: −

12 mW/

°C from 65°C to 85°C.

www.onsemi.com

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

ORDERING INFORMATION

TSSOP20

MTC SUFFIX

CASE 948AQ

SOP20

SJ SUFFIX

CASE 565BG

PDIP20

N SUFFIX

CASE 646AC

SOIC20

WM SUFFIX

CASE 751BJ