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HC245 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 HC245
部品説明 Octal 3-State Noninverting Bus Transceiver
メーカ System Logic Semiconductor
ロゴ System Logic Semiconductor ロゴ 



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HC245 Datasheet, HC245 PDF,ピン配置, 機能
SL74HC245
Octal 3-State Noninverting Bus Transceiver
High-Performance Silicon-Gate CMOS
The SL74HC245 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 SL74HC245 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
SL74HC245N Plastic
SL74HC245D SOIC
TA = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 20=VCC
PIN 10 = GND
SLS
System Logic
Semiconductor
FUNCTION TABLE
Control Inputs
Output Direction
Enable
LL
LH
HX
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)

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