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74LCX245BQX 数据表(PDF) 2 Page - Fairchild Semiconductor

部件名 74LCX245BQX
功能描述  Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

74LCX245BQX 数据表(HTML) 2 Page - Fairchild Semiconductor

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Logic Symbol
Pin Descriptions
Truth Table
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.
Connection Diagrams
Pin Assignments for SOIC,
SOP, SSOP, and TSSOP
Pin Assignment for DQFN
(Top Through View)
Logic Diagram
Pin Names
Description
OE
Output Enable Input
T/R
Transmit/Receive Input
A0–A7
Side A Inputs or 3-STATE Outputs
B0–B7
Side B Inputs or 3-STATE Outputs
Inputs
Outputs
OE
T/R
L
L
Bus B0 – B7 Data to Bus A0 – A7
L
H
Bus A0 – A7 Data to Bus B0 – B7
H
X
HIGH Z State on A0 – A7, B0 – B7 (Note 5)


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