KK74HC245A Datasheet, PDF (1/6 Pages) KODENSHI KOREA CORP. – Octal 3-State Noninverting Bus Transceiver High-Performance Silicon-Gate CMOS

TECHNICAL DATA
Octal 3-State Noninverting
Bus Transceiver
High-Performance Silicon-Gate CMOS
KK74HC245A
The KK74HC245A 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 KK74HC245A 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
KK74HC245AN Plastic
KK74HC245ADW SOIC
T_A = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 20=V_CC
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)
1