參數(shù)資料
型號(hào): SCAN18245T
廠商: National Semiconductor Corporation
英文描述: Non-Inverting Transceiver with TRI-STATE Outputs(帶三態(tài)輸出的同相收發(fā)器)
中文描述: 非反相收發(fā)器三態(tài)輸出(帶三態(tài)輸出的同相收發(fā)器)
文件頁(yè)數(shù): 2/16頁(yè)
文件大小: 193K
代理商: SCAN18245T
Truth Tables
Inputs
G1
L
L
L
L
H
A1
(0–8)
H
L
H
L
Z
B1
(0–8)
DIR1
L
L
H
H
X
H
L
H
L
Z
Inputs
G2
L
L
L
L
H
A2
(0–8)
H
L
H
L
Z
B2
(0–8)
DIR2
L
L
H
H
X
H
L
H
L
Z
H= HIGH Voltage Level
L= LOW Voltage Level
X= Immaterial
Z= High Impedance
Functional Description
The SCAN18245 consists of two sets of nine non-inverting
bidirectional buffers with TRI-STATE outputs and is intended
for bus-oriented applications. Direction pins (DIR1 and DIR2)
LOW enables data from B ports to A ports, when HIGH en-
Block Diagrams
ables data from A ports to B ports. The Output Enable pins
(G1 and G2) when HIGH disables both A and B ports by
placing them in a high impedance condition.
A1, B1, G1 and DIR1
DS100320-2
Note:
BSR stands for Boundary Scan Register.
www.national.com
2
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