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MC74VHCT126A_11

Description
Quad Bus Buffer with 3−State Control Inputs
File Size145KB,7 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
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MC74VHCT126A_11 Overview

Quad Bus Buffer with 3−State Control Inputs

MC74VHCT126A
Quad Bus Buffer
with 3−State Control Inputs
The MC74VHCT126A is a high speed CMOS quad bus buffer
fabricated with silicon gate CMOS technology. It achieves
noninverting high speed operation similar to equivalent Bipolar
Schottky TTL while maintaining CMOS low power dissipation.
The MC74VHCT126A requires the 3−state control input (OE) to be
set Low to place the output into high impedance.
The VHCT inputs are compatible with TTL levels. This device can
be used as a level converter for interfacing 3.3 V to 5.0 V, because it
has full 5.0 V CMOS level output swings.
The VHCT126A input structures provide protection when voltages
between 0 V and 5.5 V are applied, regardless of the supply voltage.
The output structures also provide protection when V
CC
= 0 V. These
input and output structures help prevent device destruction caused by
supply voltage
input/output voltage mismatch, battery backup, hot
insertion, etc.
The internal circuit is composed of three stages, including a buffer
output which provides high noise immunity and stable output. The
inputs tolerate voltages up to 7.0 V, allowing the interface of 5.0 V
systems to 3.0 V systems.
Features
http://onsemi.com
MARKING
DIAGRAMS
14
SOIC−14
D SUFFIX
CASE 751A
1
14
TSSOP−14
DT SUFFIX
CASE 948G
1
14
SOEIAJ−14
M SUFFIX
CASE 965
1
VHCT126
ALYWG
VHCT
126A
ALYWG
G
VHCT126AG
AWLYWW
1
1
High Speed: t
PD
= 3.8 ns (Typ) at V
CC
= 5.0 V
Low Power Dissipation: I
CC
= 4.0
mA
(Max) at T
A
= 25°C
TTL−Compatible Inputs: V
IL
= 0.8 V; V
IH
= 2.0 V
Power Down Protection Provided on Inputs
Balanced Propagation Delays
Designed for 2.0 V to 5.5 V Operating Range
Low Noise: V
OLP
= 0.8 V (Max)
Pin and Function Compatible with Other Standard Logic Families
Latchup Performance Exceeds 300 mA
ESD Performance: HBM > 2000 V; Machine Model > 200 V
Chip Complexity: 72 FETs or 18 Equivalent Gates
These Devices are Pb−Free and are RoHS Compliant
1
A
WL, L
Y
WW, W
G or
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
See Applications Note #AND8004/D for
date code and traceability information.
FUNCTION TABLE
VHCT126A
Inputs
A
H
L
X
OE
H
H
L
Outputs
Y
H
L
Z
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
©
Semiconductor Components Industries, LLC, 2011
May, 2011
Rev. 7
1
Publication Order Number:
MC74VHCT126A/D

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