CD74HC27 datasheet(1/7 Pages) TI

Part #	CD74HC27

Description	High Speed CMOS Logic Triple 3-Input NOR Gate

PDF	7 Pages

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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Data sheet acquired from Harris Semiconductor

SCHS132

Features

• Buffered Inputs

• Typical Propagation Delay: 7ns at VCC = 5V,

CL = 15pF, TA = 25

oC

• Fanout (Over Temperature Range)

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

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

• Wide Operating Temperature Range . . . -55oC to 125oC

• Balanced Propagation Delay and Transition Times

• Signiﬁcant Power Reduction Compared to LSTTL

Logic ICs

• HC Types

- 2V to 6V Operation

- High Noise Immunity: NIL = 30%, NIH = 30% of VCC

at VCC = 5V

• HCT Types

- 4.5V to 5.5V Operation

- Direct LSTTL Input Logic Compatibility,

VIL= 0.8V (Max), VIH = 2V (Min)

- CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH

Description

The Harris CD74HC27, CD74HCT27, logic gates utilize

silicon gate CMOS technology to achieve operating speeds

similar to LSTTL gates with the low power consumption of

standard CMOS integrated circuits. All devices have the

ability to drive 10 LSTTL loads. The 74HCT logic family is

functionally pin compatible with the standard 74LS logic

family.

Pinout

CD74HC27, CD74HCT27

(PDIP, SOIC)

TOP VIEW

Ordering Information

PART NUMBER

TEMP. RANGE

(oC)

PACKAGE

PKG.

NO.

CD74HC27E

-55 to 125

14 Ld PDIP

E14.3

CD74HCT27E

-55 to 125

14 Ld PDIP

E14.3

CD74HC27M

-55 to 125

14 Ld SOIC

M14.15

CD74HCT27M

-55 to 125

14 Ld SOIC

M14.15

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.

1A

1B

2A

2B

2C

2Y

GND

VCC

1C

1Y

3C

3B

3A

3Y

1

2

3

4

5

6

7

14

13

12

11

10

9

8

August 1997

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

Copyright

CD74HC27,

CD74HCT27

High Speed CMOS Logic

Triple 3-Input NOR Gate

File Number

1648.1

[ /Title

(CD74

HC27,

CD74

HCT27

)

/Sub-

ject

(High

Speed

CMOS

Logic

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