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MC74VHCT374A Datasheet, PDF (1/6 Pages) ON Semiconductor – Octal D-Type Flip-Flop with 3-State Output | |||
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Octal D-Type Flip-Flop
with 3-State 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 3.3V to 5.0V, because it has full 5V CMOS
level output swings.
The VHCT374A input and output (when disabled) structures provide
protection when voltages between 0V and 5.5V are applied, regardless of
the supply voltage. These input and output structures help prevent device
destruction caused by supply voltage â input/output voltage mismatch,
battery backup, hot insertion, etc.
⢠High Speed: fmax = 140MHz (Typ) at VCC = 5V
⢠Low Power Dissipation: ICC = 4µA (Max) at TA = 25°C
⢠TTLâCompatible Inputs: VIL = 0.8V; VIH = 2.0V
⢠Power Down Protection Provided on Inputs and Outputs
⢠Balanced Propagation Delays
⢠Designed for 4.5V to 5.5V Operating Range
⢠Low Noise: VOLP = 1.6V (Max)
⢠Pin and Function Compatible with Other Standard Logic Families
⢠Latchup Performance Exceeds 300mA
⢠ESD Performance: HBM > 2000V; Machine Model > 200V
⢠Chip Complexity: 276 FETs or 69 Equivalent Gates
DATA
INPUTS
LOGIC DIAGRAM
D0 3
D1 4
D2 7
D3 8
D4 13
D5 14
D6 17
D7 18
CP 11
2 Q0
5 Q1
6 Q2
9 Q3
12 Q4
15 Q5
16 Q6
19 Q7
OE 1
NONINVERTING
OUTPUTS
FUNCTION TABLE
INPUTS
OE
CP
D
L
H
L
L
L
L, H,
X
H
X
X
OUTPUT
Q
H
L
No Change
Z
MC74VHCT374A
DW SUFFIX
20âLEAD SOIC PACKAGE
CASE 751Dâ04
DT SUFFIX
20âLEAD TSSOP PACKAGE
CASE 948Eâ02
M SUFFIX
20âLEAD SOIC EIAJ PACKAGE
CASE 967â01
ORDERING INFORMATION
MC74VHCTXXXADW SOIC
MC74VHCTXXXADT TSSOP
MC74VHCTXXXAM SOIC EIAJ
PIN ASSIGNMENT
OE 1
Q0 2
D0 3
D1 4
Q1 5
Q2 6
D2 7
D3 8
Q3 9
GND 10
20 VCC
19 Q7
18 D7
17 D6
16 Q6
15 Q5
14 D5
13 D4
12 Q4
11 CP
6/97
© Motorola, Inc. 1997
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