Datasheet

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50 Ω
Signal
Generator
RE
B
A
54 Ω
C
L
=15pF
R
1kΩ
0V
V
CC
V
CC
D
DE
RE
R
1.5V
t
PZH
t
PHZ
3V
0V
V
OH
V
OH
−0.5V
GND
1.5V
50 Ω
Signal
Generator
RE
B
A
54 Ω
C
L
=15pF
R
1kΩ
5V
0V
V
CC
D
DE
RE
R
1.5V
t
PZL
t
PLZ
3V
0V
V
CC
V
OL
+0.5V
1.5V
V
OL
1.5V
50 Ω
Signal
Generator
RE
B
A
C
L
=15pF
R
1kΩ
SwitchDownforV
(A)
=1.5V,
SwitchUpforV
(A)
= −1.5V
V
CC
1.5Vor
−1.5V
t
PZH(SHDN)
t
PZL(SHDN)
RE
5V
0V
1.5V
3V
0V
V
OH
V
OL
R
SN65HVD485E
SLLS612C – JUNE 2004 – REVISED MARCH 2007
PARAMETER MEASUREMENT INFORMATION (continued)
Figure 10. Receiver Enable/Disable Test Circuit and Waveforms, Data Output High
Figure 11. Receiver Enable/Disable Test Circuit and Waveforms, Data Output Low
Figure 12. Receiver Enable From Shutdown Test Circuit and Waveforms
8
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