Datasheet

MAX3160E/MAX3161E/MAX3162E
±15kV ESD-Protected, +3.0V to +5.5V, 10nA,
RS-232/RS-485/RS-422 Multiprotocol Transceivers
______________________________________________________________________________________ 13
TE232
RE485
R
B
A
Z
Y
RO
28
27
26
25
24
23
22
211
1
2
3
4
RS-485
OUTPUTS
RS-232
OUTPUT
RS-232
OUTPUT
LOGIC
OUTPUTS
LOGIC
INPUT
RS-232
INPUTS
C1
C3
C2
C4
SHDN
FAST
5
6
7
8
V+
C2+
C2-
V-
C1-
GND
V
CC
V
CC
C1+
16
15
13
14
CHARGE
PUMP
T1
T2
R1
R2
20
19
18
17
LOGIC
INPUTS
RS-485
INPUTS
9
10
11
12
LOGIC
INPUTS
D
DE485
C
BYPASS
ESD
PROTECTION
ESD
PROTECTION
RE-232
MAX3162E
MAX3162E Functional Diagram
C
L
R
DIFF
V
OD
Z
3V
DE485
Y
DI
C
L
V
CC
OUTPUT
UNDER TEST
S1
S2
500Ω
Figure 3. RS-485/RS-422 Driver Timing Test Circuit
Figure 4. RS-485/RS-422 Driver Enable/Disable Timing Test Load
1k
C
L
V
CC
TEST POINT
RECEIVER
OUTPUT
S1
1kΩ
S2
Figure 2. RS-485/RS-422 and RS-232 Receiver Enable/Disable
Timing Test Load
Figure 1. RS-485/RS-422 Driver DC Test Load
V
OD
V
OC
R
R
Z
Y
Test Circuits