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MC74VHCT374A_06 Datasheet, PDF (1/7 Pages) ON Semiconductor – Octal D−Type Flip−Flop with 3−State Output | |||
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MC74VHCT374A
Octal DâType FlipâFlop
with 3âState Output
The MC74VHCT374A is an advanced high speed CMOS octal
flipâflop with 3âstate 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 8âbit Dâtype flipâflop 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
help prevent device destruction caused by supply
voltageâinput/output voltage mismatch, battery backup, hot insertion,
etc.
Features
⢠High Speed: fmax = 140 MHz (Typ) at VCC = 5.0 V
⢠Low Power Dissipation: ICC = 4 mA (Max) at TA = 25°C
⢠TTLâCompatible Inputs: VIL = 0.8 V; VIH = 2.0 V
⢠Power Down Protection Provided on Inputs and Outputs
⢠Balanced Propagation Delays
⢠Designed for 4.5 V to 5.5 V Operating Range
⢠Low Noise: VOLP = 1.6 V (Max)
⢠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
⢠PbâFree Packages are Available*
http://onsemi.com
MARKING
DIAGRAMS
20
VHCT374A
1 SOICâ20WB
SUFFIX DW
AWLYYWWG
CASE 751D 1
20
1 TSSOPâ20
SUFFIX DT
CASE 948E 1
VHCT
374A
ALYWG
G
20
74VHCT374
SOEIAJâ20
AWLYWWG
1
SUFFIX M
CASE 967 1
A
= Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G or G = PbâFree Package
(Note: Microdot may be in either location)
FUNCTION TABLE
INPUTS
OUTPUT
OE
CP
D
Q
L
H
H
L
L
L
L
L, H,
X
No Change
H
X
X
Z
*For additional information on our PbâFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
1
January, 2006 â Rev. 4
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
Publication Order Number:
MC74VHCT374A/D
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