MC74VHCT541A
Octal Bus Buffer
The MC74VHCT541A is an advanced high speed CMOS octal bus
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 MC74VHCT541A is a noninverting, 3−state, buffer/line
driver/line receiver. When either OE1 or OE2 is high, the terminal
outputs are in the high impedance state.
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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.
MARKING
DIAGRAMS
The VHCT541A input and output (when disabled) structures
provide protection when voltages between 0 V and 5.5 V are applied,
regardless of the supply voltage. These input and output structures
help prevent device destruction caused by supply
voltage−input/output voltage mismatch, battery backup, hot insertion,
etc.
20
1
VHCT541A
AWLYYWWG
SOIC−20WB
SUFFIX DW
CASE 751D
1
Features
20
• High Speed: t = 5.4 ns (Typ) at V = 5.0 V
PD
CC
VHCT
541A
ALYWG
G
• Low Power Dissipation: I = 4 mA (Max) at T = 25°C
CC
A
• TTL−Compatible Inputs: V = 0.8 V; V = 2.0 V
IL
IH
1
TSSOP−20
SUFFIX DT
CASE 948E
• Power Down Protection Provided on Inputs and Outputs
• Balanced Propagation Delays
1
• Designed for 4.5 V to 5.5 V Operating Range
• Low Noise: V
= 1.6 V (Max)
OLP
20
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300 mA
74VHCT541
AWLYWWG
SOEIAJ−20
SUFFIX M
CASE 967
1
• ESD Performance:
1
Human Body Model > 2000 V;
Machine Model > 200 V
• Chip Complexity: 134 FETs or 33.5 Equivalent Gates
• Pb−Free Packages are Available*
A
WL, L
YY, Y
= Assembly Location
= Wafer Lot
= Year
WW, W = Work Week
G or G
= Pb−Free Package
(Note: Microdot may be in either location)
FUNCTION TABLE
Inputs
Output Y
OE1 OE2
A
L
L
H
X
L
L
X
H
L
H
X
X
L
H
Z
Z
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
©
Semiconductor Components Industries, LLC, 2006
1
Publication Order Number:
January, 2006 − Rev. 4
MC74VHCT541A/D