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PDF IN74LS245 Data sheet ( Hoja de datos )

Número de pieza IN74LS245
Descripción Octal Bus Transceiver
Fabricantes IK Semiconductor 
Logotipo IK Semiconductor Logotipo



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No Preview Available ! IN74LS245 Hoja de datos, Descripción, Manual

TECHNICAL DATA
Octal 3-State Noninverting
Bus Transceiver
IN74LS245
These octal bus transceiver are designed for asynchronous two-way
communication between data buses. The control function implementation
minimized external timing requirements.
The device allows data transmission from the A bus to the B bus or
from the B bus to the A bus depending upon the logic level at the
directional control (DIR) input. The enable input(E) can be used to
disable the device so that the buses are effectively isolated.
Bidirectional Bus Transceiver in a High-Density 20-Pin Package
3-state Outputs Dirve Bus Lines Directly
P-N-P Inputs D-C Loading on Bus Lines
Hysteresis at Bus Inputs Improve Noise Margins
Typical Propagation Delay Times; Port to Port ... 8 ns
ORDERING INFORMATION
IN74LS245N Plastic
IN74LS245DW SOIC
TA = 0° to 70° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
www.datasheet4u.cPoPININm1020==GVNCCD
FUNCTION TABLE
Control Inputs
Output Direction
Enable
Operation
L L Data Transmitted
from Bus B to
Bus A
L H Data Transmitted
from Bus A to
Bus B
H X Buses Isolated
(High Impedance
State)
X = don’t care
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IN74LS245 pdf
N SUFFIX PLASTIC DIP
(MS - 001AD)
IN74LS245
A
20 11
B
1 10
F
C
-T- SEATING
PLANE
N
G KM
D
NOTES:
0.25 (0.010) M T
1. Dimensions “A”, “B” do not include mold flash or protrusions.
Maximum mold flash or protrusions 0.25 mm (0.010) per side.
L
J
H
Dimension, mm
Symbol MIN MAX
A 24.89 26.92
B 6.1 7.11
C 5.33
D 0.36 0.56
F 1.14 1.78
G 2.54
H 7.62
J 0° 10°
K 2.92 3.81
L 7.62 8.26
M 0.2 0.36
N 0.38
D SUFFIX SOIC
(MS - 013AC)
A
20 11
H BP
1 G 10
C
-T-
D
SEATING
K PLANE
J
0.25 (0.010) M T C M
NOTES:
1. Dimensions A and B do not include mold flash or protrusion.
2. Maximum mold flash or protrusion 0.15 mm (0.006) per side
for A; for B 0.25 mm (0.010) per side.
R x 45
F
Dimension, mm
Symbol MIN MAX
A 12.6
13
B 7.4 7.6
C 2.35 2.65
D 0.33 0.51
F 0.4 1.27
MG
H
1.27
9.53
J 0° 8°
K 0.1 0.3
M 0.23 0.32
P 10 10.65
R 0.25 0.75
5

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