Datasheet
MAX3160E/MAX3161E/MAX3162E
±15kV ESD-Protected, +3.0V to +5.5V, 10nA,
RS-232/RS-485/RS-422 Multiprotocol Transceivers
14 ______________________________________________________________________________________
Test Circuits (continued)
t
PHL
t
PLH
50%
V
CC
1.5V
+3V
1.5V
INPUT
OUTPUT
0V
50%
GND
t
RSKEW
= | t
PLH
- t
PHL
|
Figure 5. RS-232 Receiver Propagation-Delay Timing
INPUT
OUTPUT
+3V
1.5V 1.5V
V+
0V
V-
0V
t
PLH
t
PHL
t
SKEW = |
t
PLH
- t
PHL
|
Figure 6. RS-232 Transmitter Propagation-delay Timing
DI
3V
0
Z
Y
V
O
0
-V
O
V
O
1.5V
t
DPLH
1/2 V
O
10%
t
DR
90%
90%
t
DPHL
1.5V
1/2 V
O
10%
t
DF
V
DIFF
= V
y
- V
z
V
DIFF
t
DSKEW = |
t
DPLH
- t
DPHL
|
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0
Y, Z
V
OL
Y, Z
0
1.5V 1.5V
V
OL
+ 0.5V
V
OH
- 0.5V
2.3V
2.3V
t
DZL
t
DLZ
t
DZH
t
DHZ
DE485
Figure 7. RS-485/RS-422 Driver Propagation Delays
Figure 8. RS-485/RS-422 Driver Enable and Disable Times
V
OH
V
OL
A
B
1V
-1V
V
CC
/2 V
CC
/2
OUTPUT
INPUT
RO
t
RPLH
t
RPHL
t
RSKEW
= | t
RPLH
- t
RPHL
|
V
ID
C
L
A
B
R
RO
Figure 9. RS-485/RS-422 Receiver Propagation Delays
Figure 11. RS-485/RS-422 Receiver Propagation Delays Test
Circuit
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0
V
CC
RO
RO
0
1.5V 1.5V
V
OL
+ 0.5V
V
OH
- 0.5V
1.5V
1.5V
t
RZL
t
RLZ
t
RZH
t
RHZ
RE232 OR RE485
Figure 10. MAX3162 RS-485/RS-422 and RS-232 Receiver
Enable and Disable Times