1

Data sheet acquired from Harris Semiconductor

SCHS159

Features

• Buffered Positive Edge Triggered Clock

• Asynchronous Common Reset

• Fanout (Over Temperature Range)

- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads

- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads

• Balanced Propagation Delay and Transition Times

• Significant Power Reduction Compared to LSTTL

Logic ICs

• HC Types

- 2V to 6V Operation

• HCT Types

- 4.5V to 5.5V Operation

- Direct LSTTL Input Logic Compatibility,

Description

The Harris CD74HC174 and CD74HCT174 are edge

triggered flip-flops which utilize silicon gate CMOS circuitry to

implement D-type flip-flops. They possess low power and

speeds comparable to low power Schottky TTL circuits. The

devices contain six master-slave flip-flops with a common

clock and common reset. Data on the D input having the

specified setup and hold times is transferred to the Q output

on the low to high transition of the CLOCK input. The MR

input, when low, sets all outputs to a low state.

Each output can drive ten low power Schottky TTL

equivalent loads. The CD74HCT174 is functional as well as,

pin compatible to the 74LS174.

Pinout

CD74HC174, CD74HCT174

(PDIP, SOIC)

TOP VIEW

Ordering Information

PART NUMBER

TEMP. RANGE

PACKAGE

PKG.

NO.

CD74HC174E

-55 to 125

16 Ld PDIP

E16.3

CD74HCT174E

-55 to 125

16 Ld PDIP

E16.3

CD74HC174M

-55 to 125

16 Ld SOIC

M16.15

CD74HCT174M

-55 to 125

16 Ld SOIC

M16.15

CD74HCT174W

-55 to 125

Wafer

NOTES:

1. When ordering, use the entire part number. Add the suffix 96 to

obtain the variant in the tape and reel.

2. Die for this part number is available which meets all electrical

specifications. Please contact your local sales office or Harris

customer service for ordering information.

MR

GND

14

15

16

9

13

12

11

10

1

2

3

4

5

7

6

8

CP

August 1997

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

Copyright

CD74HC174,

CD74HCT174

High Speed CMOS Logic

Hex D-Type Flip-Flop with Reset

File Number

1608.1

[ /Title

(CD74

HC174

,

CD74

HCT17

4)

/Sub-

ject

(High

Speed

CMOS

Logic

Hex D-

Type

Flip-

Flop