IN74LS245 Datasheet, PDF (1/5 Pages) Integral Corp. – Octal 3-State Noninverting Bus Transceiver

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
T_A = 0° to 70° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 20=V_CC
PIN 10 = GND
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
Rev. 00