© Semiconductor Components Industries, LLC, 2007

February, 2007 − Rev. 10

1

Publication Order Number:

MC74VHC1GT32/D

MC74VHC1GT32

2−Input OR Gate/CMOS

Logic Level Shifter

The MC74VHC1GT32 is an advanced high speed CMOS 2−input

OR gate fabricated with silicon gate CMOS technology. It achieves

high speed operation similar to equivalent Bipolar Schottky TTL

while maintaining CMOS low power dissipation.

The internal circuit is composed of three stages, including a buffer

output which provides high noise immunity and stable output.

The device input is compatible with TTL−type input thresholds and

the output has a full 5 V CMOS level output swing. The input protection

circuitry on this device allows overvoltage tolerance on the input,

allowing the device to be used as a logic−level translator from 3 V

CMOS logic to 5 V CMOS Logic or from 1.8 V CMOS logic to 3 V

CMOS Logic while operating at the high−voltage power supply.

The MC74VHC1GT32 input structure provides protection when

voltages up to 7 V are applied, regardless of the supply voltage. This

allows the MC74VHC1GT32 to be used to interface 5 V circuits to

3 V circuits. The output structures also provide protection when

destruction caused by supply voltage − input/output voltage mismatch,

battery backup, hot insertion, etc.

Features

IN B

IN A

OUT Y

GND

IN A

IN B

OUT Y

≥ 1

Figure 2. Logic Symbol

1

2

3

4

5

http://onsemi.com

MARKING

DIAGRAMS

SC−88A/SC70−5/SOT−353

DF SUFFIX

CASE 419A

TSOP−5/SOT23−5/SC59−5

DT SUFFIX

CASE 483

1

1

5

5

PIN ASSIGNMENT

1

2

3

GND

IN B

IN A

4

OUT Y

L

L

H

H

L

H

L

H

FUNCTION TABLE

Inputs

Output

AB

L

H

H

H

Y

See detailed ordering and shipping information in the package

dimensions section on page 4 of this data sheet.

ORDERING INFORMATION

1

5

VN M

G

G

VN

= Device Code

M

= Date Code*

G

= Pb−Free Package

1

5

VN M

G

G

*Date Code orientation and/or position may vary

depending upon manufacturing location.

(Note: Microdot may be in either location)