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PDF MC74LVX244 Data sheet ( Hoja de datos )
| Número de pieza | MC74LVX244 | |
| Descripción | LOW-VOLTAGE CMOS | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Octal Bus Buffer
With 5V-Tolerant Inputs
The MC74LVX244 is an advanced high speed CMOS non–inverting
3–state octal bus buffer and has two active low output enables. It is also
designed to work with 3–state memory address drivers, etc. The inputs
tolerate voltages up to 7V, allowing the interface of 5V systems to 3V
systems.
• High Speed: tPD = 4.7ns (Typ) at VCC = 3.3V
• Low Power Dissipation: ICC = 4µA (Max) at TA = 25°C
• Power Down Protection Provided on Inputs
• Balanced Propagation Delays
• Low Noise: VOLP = 0.8V (Max)
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300mA
• ESD Performance: HBM > 2000V; Machine Model > 200V
VCC 2OE 1O0 2D0 1O1 2D1 1O2 2D2 1O3 2D3
20 19 18 17 16 15 14 13 12 11
MC74LVX244
LVX
LOW–VOLTAGE CMOS
DW SUFFIX
20–LEAD SOIC PACKAGE
CASE 751D–04
DT SUFFIX
20–LEAD TSSOP PACKAGE
CASE 948E–02
1 2 3 4 5 6 7 8 9 10
1OE 1D0 2O0 1D1 2O1 1D2 2O2 1D3 2O3 GND
Figure 1. 20–Lead Pinout (Top View)
1
1OE
2
1D0
4
1D1
6
1D2
8
1D3
19
2OE
18
1O0
17
2D0
16
1O1
15
2D1
14
1O2
13
2D2
12
1O3
11
2D3
Figure 2. Logic Diagram
3
2O0
5
2O1
7
2O2
9
2O3
M SUFFIX
20–LEAD SOIC EIAJ PACKAGE
CASE 967–01
PIN NAMES
Pins
Function
nOE
1Dn, 2Dn
1On, 2On
Output Enable Inputs
Data Inputs
3–State Outputs
FUNCTION TABLE
INPUTS
1OE, 2OE 1Dn, 2Dn
LL
LH
HX
OUTPUTS
1On, 2On
L
H
Z
6/97
© Motorola, Inc. 1997
DataSheet4 U .com
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OUTLINE DIMENSIONS
–A–
20 11
DW SUFFIX
PLASTIC SOIC PACKAGE
CASE 751D–04
ISSUE E
–B– 10X P
0.010 (0.25) M B M
1 10
20X D
0.010 (0.25) M T A S B S
J
F
18X G
C
–T–
SEATING
PLANE
K
M
R X 45_
MC74LVX244
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.150
(0.006) PER SIDE.
5. DIMENSION D DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.13
(0.005) TOTAL IN EXCESS OF D DIMENSION
AT MAXIMUM MATERIAL CONDITION.
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A 12.65 12.95 0.499 0.510
B 7.40 7.60 0.292 0.299
C 2.35 2.65 0.093 0.104
D 0.35 0.49 0.014 0.019
F 0.50 0.90 0.020 0.035
G 1.27 BSC
0.050 BSC
J 0.25 0.32 0.010 0.012
K 0.10 0.25 0.004 0.009
M 0 _ 7_ 0_ 7_
P 10.05 10.55 0.395 0.415
R 0.25 0.75 0.010 0.029
DT SUFFIX
PLASTIC TSSOP PACKAGE
CASE 948E–02
ISSUE A
0.15 (0.006) T U S
2X L/2 20
L
PIN 1
IDENT
1
0.15 (0.006) T U S
C
D
0.100 (0.004)
–T– SEATING
PLANE
20X K REF
0.10 (0.004) M T U S V S
11
B
–U–
10
A
–V–
GH
J J1ÍÍÍÍÍÍKKÍÍÍ1 ÍÍÍ
SECTION N–N
N 0.25 (0.010)
M
N
F
DETAIL E
DETAIL E
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS OR GATE BURRS. MOLD FLASH
OR GATE BURRS SHALL NOT EXCEED 0.15
(0.006) PER SIDE.
4. DIMENSION B DOES NOT INCLUDE INTERLEAD
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED 0.25 (0.010)
PER SIDE.
5. DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN
EXCESS OF THE K DIMENSION AT MAXIMUM
MATERIAL CONDITION.
6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
7. DIMENSION A AND B ARE TO BE DETERMINED
AT DATUM PLANE –W–.
–W–
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A 6.40 6.60 0.252 0.260
B 4.30 4.50 0.169 0.177
C ––– 1.20 ––– 0.047
D 0.05 0.15 0.002 0.006
F 0.50 0.75 0.020 0.030
G 0.65 BSC
0.026 BSC
H 0.27 0.37 0.011 0.015
J 0.09 0.20 0.004 0.008
J1 0.09 0.16 0.004 0.006
K 0.19 0.30 0.007 0.012
K1 0.19 0.25 0.007 0.010
L 6.40 BSC
0.252 BSC
M 0_ 8_ 0_ 8_
LCX DATA
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MOTOROLA
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