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74LCX245MTCX 参数 Datasheet PDF下载

74LCX245MTCX图片预览
型号: 74LCX245MTCX
PDF下载: 下载PDF文件 查看货源
内容描述: 低电压双向收发器,具有5V容限输入和输出 [Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs]
分类和应用:
文件页数/大小: 12 页 / 435 K
品牌: FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
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74LCX245
Logic Symbol
Connection Diagrams
Pin Assignments for SOIC,
SOP, SSOP, and TSSOP
Pin Descriptions
Pin Names
OE
T/R
A
0
–A
7
B
0
–B
7
Description
Output Enable Input
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Pin Assignment for DQFN
Truth Table
Inputs
Outputs
OE
L
L
H
T/R
L
H
X
Bus B
0
– B
7
Data to Bus A
0
– A
7
Bus A
0
– A
7
Data to Bus B
0
– B
7
HIGH Z State on A
0
– A
7
, B
0
– B
7
(Note 5)
H HIGH Voltage Level
L LOW Voltage Level
X Immaterial
Z High Impedance
Note 5:
Unused bus terminals during HIGH Z State must be held
HIGH or LOW.
(Top Through View)
Logic Diagram
www.fairchildsemi.com
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