IN74HC245A View Datasheet(PDF) - Integral Corp.
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IN74HC245A Datasheet PDF : 5 Pages
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TECHNICAL DATA
Octal 3-State Noninverting
Bus Transceiver
High-Performance Silicon-Gate CMOS
IN74HC245A
The IN74HC245A is identical in pinout to the LS/ALS245. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
The IN74HC245A is a 3-state noninverting transceiver that is used
for 2-way asynchronous communication between data buses. The
device has an active-low Output Enable pin, which is used to place the
I/O ports into high-impedance states. The Direction control determines
whether data flows from A to B or from B to A.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
IN74HC245AN Plastic
IN74HC245ADW SOIC
TA = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 20=VCC
PIN 10 = GND
FUNCTION TABLE
Control Inputs
Output Direction
Enable
L
L
L
H
H
X
X = don’t care
Operation
Data Transmitted
from Bus B to
Bus A
Data Transmitted
from Bus A to
Bus B
Buses Isolated
(High Impedance
State)
301
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