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PDF ( 数据手册 , 数据表 ) U74AHC245

零件编号 U74AHC245
描述 OCTAL BUS TRANSCEIVERS
制造商 Unisonic Technologies
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U74AHC245 数据手册, 描述, 功能
UNISONIC TECHNOLOGIES CO., LTD
U74AHC245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
CMOS IC
DESCRIPTION
The U74AHC245 octal bus transceivers is designed for
asynchronous two-way communication between data buses. The
control-function implementation minimizes 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 on the logic level at
the direction-control (DIR) input. The output-enable ( OE ) input can
be used to disable the device so that the buses are effectively
isolated.
To ensure the high-impedance state during power up or power
down, OE should be tied to VCC through a pullup resistor; the
minimum value of the resistor is determined by the current-sinking
capability of the driver.
FEATURES
* Operating range 2V to 5.5V VCC
ORDERING INFORMATION
Ordering Number
U74AHC245G-P20-R
U74AHC245G-R20-R
U74AHC245G-S20-R
Package
TSSOP-20
SSOP-20
SOP-20
Packing
Tape Reel
Tape Reel
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
1 of 5
QW-R502-987.B












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