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M74VHC1GT126DF2G
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M74VHC1GT126DF2G Datasheet PDF : 6 Pages
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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
VCC = 0 V. These input and output structures help prevent device
destruction caused by supply voltage − input/output voltage mismatch,
battery backup, hot insertion, etc.
Features
• High Speed: tPD = 3.5 ns (Typ) at VCC = 5 V
• Low Power Dissipation: ICC = 1 mA (Max) at TA = 25°C
• TTL−Compatible Inputs: VIL = 0.8 V; VIH = 2 V
• CMOS−Compatible Outputs: VOH > 0.8 VCC; VOL < 0.1 VCC @Load
• Power Down Protection Provided on Inputs and Outputs
• Balanced Propagation Delays
• Pin and Function Compatible with Other Standard Logic Families
• Chip Complexity: FETs = 62; Equivalent Gates = 16
• Pb−Free Packages are Available
OE 1
IN A 2
GND 3
5 VCC
4 OUT Y
Figure 1. Pinout (Top View)
OE
OUT Y
IN A
Figure 2. Logic Symbol
http://onsemi.com
MARKING
DIAGRAMS
5
1
SC−88A/SOT−353/SC−70
DF SUFFIX
CASE 419A
5
W3 M G
G
1
5
1
TSOP−5/SOT−23/SC−59
DT SUFFIX
CASE 483
5
W3 M G
G
1
W3 = Device Code
M = Date Code*
G = Pb−Free Package
(Note: Microdot may be in either location)
*Date Code orientation and/or position may vary
depending upon manufacturing location.
PIN ASSIGNMENT
1
OE
2
IN A
3
GND
4
OUT Y
5
VCC
A Input
L
H
X
FUNCTION TABLE
OE Input
Y Output
H
L
H
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, 2007
1
February, 2007 − Rev. 13
Publication Order Number:
MC74VHC1GT126/D
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