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PDF MC74VHCT373A Data sheet ( Hoja de datos )
| Número de pieza | MC74VHCT373A | |
| Descripción | Octal D-Type Latch with 3-State Output | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MC74VHCT373A (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Octal D-Type Latch
with 3-State Output
The MC74VHCT373A is an advanced high speed CMOS octal latch 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 latch is controlled by a latch enable 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 VHCT373A 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 – input/output voltage mismatch,
battery backup, hot insertion, etc.
• High Speed: tPD = 7.7ns (Typ) at VCC = 5V
• Low Power Dissipation: ICC = 4µA (Max) at TA = 25°C
• TTL–Compatible 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: 196 FETs or 49 Equivalent Gates
LOGIC DIAGRAM
DATA
INPUTS
D0 3
D1 4
D2 7
D3 8
D4 13
D5 14
D6
D7
17
18
LE 11
OE 1
FUNCTION TABLE
INPUTS
OE LE
D
L HH
LHL
L LX
HXX
2 Q0
5 Q1
6 Q2
9 Q3
12 Q4
15 Q5
16 Q6
19 Q7
NONINVERTING
OUTPUTS
OUTPUT
Q
H
L
No Change
Z
MC74VHCT373A
DW SUFFIX
20–LEAD SOIC PACKAGE
CASE 751D–04
DT SUFFIX
20–LEAD TSSOP PACKAGE
CASE 948E–02
M SUFFIX
20–LEAD SOIC EIAJ PACKAGE
CASE 967–01
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 LE
6/97
© Motorola, Inc. 1997
1
REV 0
1 page  
MC74VHCT373A
EXPANDED LOGIC DIAGRAM
D0
3
D
Q
D1
4
D
Q
D2
7
D
Q
D3
8
D
Q
D4
13
D
Q
D5
14
D
Q
D6
17
D
Q
D7
18
D
Q
11
LE
1
OE
LE LE LE LE LE LE LE LE
2 5 6 9 12 15 16 19
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
VHC Data – Advanced CMOS Logic
DL203 — Rev 1
5
MOTOROLA
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet MC74VHCT373A.PDF ] | |
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