© Semiconductor Components Industries, LLC, 2012

May, 2012 − Rev. 15

1

Publication Order Number:

MC74VHC1GT126/D

MC74VHC1GT126

Noninverting Buffer /

CMOS Logic Level Shifter

with LSTTL−Compatible Inputs

The MC74VHC1GT126 is a single gate noninverting 3−state buffer

fabricated with silicon gate CMOS technology. It achieves high speed

operation similar to equivalent Bipolar Schottky TTL while maintaining

CMOS low power dissipation.

The MC74VHC1GT126 requires the 3−state control input (OE) to be

set Low to place the output into the high impedance state.

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 MC74VHC1GT126 input structure provides protection when

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

allows the MC74VHC1GT126 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

Unique Site and Control Change Requirements; AEC−Q100

Qualified and PPAP Capable

Figure 1. Pinout (Top View)

IN A

OUT Y

OE

IN A

OUT Y

GND

OE

Figure 2. Logic Symbol

1

2

3

4

5

PIN ASSIGNMENT

1

2

3

GND

OE

IN A

4

OUT Y

See detailed ordering and shipping information in the package

dimensions section on page 4 of this data sheet.

ORDERING INFORMATION

FUNCTION TABLE

L

H

X

A Input

Y Output

L

H

Z

OE Input

H

H

L

http://onsemi.com

SC−88A / SOT−353 / SC−70

DF SUFFIX

CASE 419A

TSOP−5 / SOT−23 / SC−59

DT SUFFIX

CASE 483

MARKING

DIAGRAMS

1

5

1

5

1

5

W3 M G

G

W3

= Device Code

M

= Date Code*

G

= Pb−Free Package

1

5

W3 M G

G

*Date Code orientation and/or position may vary

depending upon manufacturing location.

(Note: Microdot may be in either location)