IN74LS245N Integral Corp., IN74LS245N Datasheet

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IN74LS245N

Manufacturer Part Number
IN74LS245N
Description
Octal 3-state noninverting bus transceiver
Manufacturer
Integral Corp.
Datasheet
Octal 3-State Noninverting
Bus Transceiver
communication between data buses. The control function implementation
minimized external timing requirements.
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
These octal bus transceiver are designed for asynchronous two-way
The device allows data transmission from the A bus to the B bus or
LOGIC DIAGRAM
PIN 10 = GND
PIN 20=V
CC
X = don’t care
Output
Enable
H
L
L
Control Inputs
FUNCTION TABLE
ORDERING INFORMATION
T
A
PIN ASSIGNMENT
Direction
= 0° to 70° C for all packages
IN74LS245DW SOIC
IN74LS245N Plastic
H
X
L
TECHNICAL DATA
IN74LS245
Data Transmitted
from Bus B to
Bus A
Data Transmitted
from Bus A to
Bus B
Buses Isolated
(High Impedance
State)
Operation
1

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IN74LS245N Summary of contents

Page 1

... PIN 10 = GND FUNCTION TABLE Control Inputs Output Enable don’t care TECHNICAL DATA IN74LS245 ORDERING INFORMATION IN74LS245N Plastic IN74LS245DW SOIC T = 0° to 70° C for all packages A PIN ASSIGNMENT Direction Operation L Data Transmitted from Bus B to Bus A H Data Transmitted ...

Page 2

MAXIMUM RATINGS Symbol V Supply Voltage CC V Input Voltage IN V Output Voltage OUT Tstg Storage Temperature Range * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to ...

Page 3

AC ELECTRICAL CHARACTERISTICS t = 6.0 ns) f Symbol Parameter t Propagation Delay Time, Low-to-High PLH Level Output (from Output) t Propagation Delay Time, High-to-Low PHL Level Output (from Output) t Output ...

Page 4

EXPANDED LOGIC DIAGRAM IN74LS245 4 ...

Page 5

0.25 (0.010 NOTES: 1. Dimensions “A”, “B” do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side -T- D 0.25 (0.010) ...

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