參數(shù)資料
型號(hào): DS96173
廠商: National Semiconductor Corporation
英文描述: RS-485/RS-422 Quad Differential Line Receivers(RS-485/RS-422 四差分線驅(qū)動(dòng)器)
中文描述: RS-485/RS-422收發(fā)四路差分線接收器(RS-485/RS-422收發(fā)四差分線驅(qū)動(dòng)器)
文件頁(yè)數(shù): 3/6頁(yè)
文件大小: 173K
代理商: DS96173
Switching Characteristics
V
CC = 5V, TA = 25C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
t
PLH
Propagation Delay Time,
V
ID = 2.5V to 2.5V,
15
25
ns
Low to High Level Output
C
L =15pF, Figure 1
t
PHL
Propagation Delay Time,
15
25
ns
High to Low Level Output
t
PZH
Output Enable Time to High Level
C
L =15pF, Figure 2
15
22
ns
t
PZL
Output Enable Time to Low Level
C
L =15pF, Figure 3
15
22
ns
t
PHZ
Output Disable Time from High Level
C
L = 5 pF, Figure 2
14
30
ns
t
PLZ
Output Disable Time from Low Level
C
L = 5 pF, Figure 3
24
40
ns
Function Tables
(Each Receiver) DS96173
Differential Inputs
Enables
Outputs
A–B
E
V
V
ID > 0.2V
H
X
H
XL
H
V
ID < 0.2V
H
X
L
XL
L
XL
X
Z
XX
H
Z
H = High Level
L = Low Level
X = Immaterial
Z = High Impedance (off)
(Each Receiver) DS96175
Differential Inputs
Enable
Output
A–B
Y
V
ID ≥ 0.2V
H
V
ID ≤ 0.2V
H
L
XL
Z
Parameter Measurement Information
DS009628-3
DS009628-4
FIGURE 1. t
PLH,tPHL (Note 11)
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