MC74VHCT374A
Octal D−Type Flip−Flop
with 3−State Output
The MC74VHCT374A is an advanced high speed CMOS octal
flip−flop with 3−state output fabricated with silicon gate CMOS
technology. It achieves high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining CMOS low power
dissipation.
http://onsemi.com
This 8−bit D−type flip−flop is controlled by a clock input and an
output enable input. When the output enable input is high, the eight
outputs are in a high impedance state.
MARKING
DIAGRAMS
The internal circuit is composed of three stages, including a buffer
output which provides high noise immunity and stable output.
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 VHCT374A 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
VHCT374A
AWLYYWWG
SOIC−20WB
SUFFIX DW
CASE 751D
1
20
VHCT
374A
ALYWG
G
1
TSSOP−20
SUFFIX DT
CASE 948E
Features
1
• High Speed: f
= 140 MHz (Typ) at V = 5.0 V
CC
max
• 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
20
• Power Down Protection Provided on Inputs and Outputs
• Balanced Propagation Delays
74VHCT374
AWLYWWG
SOEIAJ−20
SUFFIX M
CASE 967
• Designed for 4.5 V to 5.5 V Operating Range
1
1
• Low Noise: V
= 1.6 V (Max)
OLP
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300 mA
A
= Assembly Location
= Wafer Lot
WL, L
YY, Y
• ESD Performance:
= Year
Human Body Model > 2000 V;
Machine Model > 200 V
WW, W = Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
G or G
• Chip Complexity: 276 FETs or 69 Equivalent Gates
• Pb−Free Packages are Available*
FUNCTION TABLE
INPUTS
CP
OUTPUT
Q
OE
D
L
L
L
H
L
X
X
H
L
No Change
Z
L, H,
X
H
*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
MC74VHCT374A/D