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.
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.
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
h e l p p r e v e n t d e v i c e d e s t r u c t i o n c a u s e d b y s u p p l y
voltage−input/output voltage mismatch, battery backup, hot insertion,
etc.
Features
•
High Speed: f
= 140 MHz (Typ) at V
max
•
= 4 mA (Max) at T
Low Power Dissipation: I
CC
•
TTL−Compatible Inputs: V
= 0.8 V; V
IL
•
Power Down Protection Provided on Inputs and Outputs
•
Balanced Propagation Delays
•
Designed for 4.5 V to 5.5 V Operating Range
•
Low Noise: V
= 1.6 V (Max)
OLP
•
Pin and Function Compatible with Other Standard Logic Families
•
Latchup Performance Exceeds 300 mA
•
ESD Performance:
Human Body Model > 2000 V;
Machine Model > 200 V
•
Chip Complexity: 276 FETs or 69 Equivalent Gates
•
Pb−Free Packages are Available*
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
January, 2006 − Rev. 4
= 5.0 V
CC
= 25°C
A
= 2.0 V
IH
OE
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
1
http://onsemi.com
MARKING
DIAGRAMS
20
VHCT374A
AWLYYWWG
SOIC−20WB
1
SUFFIX DW
CASE 751D
1
20
VHCT
374A
ALYWG
1
TSSOP−20
G
SUFFIX DT
1
CASE 948E
20
74VHCT374
SOEIAJ−20
AWLYWWG
1
SUFFIX M
1
CASE 967
A
= Assembly Location
WL, L
= Wafer Lot
YY, Y
= Year
WW, W
= Work Week
G or G
= Pb−Free Package
(Note: Microdot may be in either location)
FUNCTION TABLE
INPUTS
OUTPUT
CP
D
Q
L
H
H
L
L
L
L
L, H,
X
No Change
H
X
X
Z
ORDERING INFORMATION
Publication Order Number:
MC74VHCT374A/D