DE is low for 200ns (typ), the devices are guaranteed to
enter shutdown.
Enable times t
ZH
and t
ZL
(see the
Switching Character-
istics
) assume the devices are not in a low-power shut-
down state. Enable times t
ZH(SHDN)
and t
ZL(SHDN)
assume the devices are in a shutdown state. It takes dri-
vers and receivers longer to become enabled from low-
power shutdown mode (t
ZH(SHDN)
, t
ZL(SHDN)
) than from
driver-/receiver-disable mode (t
ZH
, t
ZL
).
Line Length
The RS-485 standard covers line lengths up to 4000ft.
For line lengths greater than 4000ft, use the repeater
application shown in Figure 8.
Typical Applications
The MAX13181E–MAX13184E transceivers are designed
for bidirectional data communications on multipoint bus
transmission lines. The MAX13181E/MAX13183E can be
used in either half-duplex or full-duplex configuration.
The MAX13182E/MAX13184E are for full-duplex only.
Figure 9 shows the typical network application circuit for
half-duplex, and Figures 10 and 11 show typical network
application circuits for full duplex.
To minimize reflections, terminate the line at both ends in
its characteristics impedance, and keep stub lengths off
the main line as short as possible. The slew-rate-limited
MAX13181E/MAX13182E are more tolerant of imperfect
termination.
MAX13181E–MAX13184E
+5.0V, ±15kV ESD-Protected, Half-Duplex/
Full-Duplex, RS-485 Transceiver in µDFN
______________________________________________________________________________________ 13
RO
DI
(H/F)
DE
R
D
MAX13182E/MAX13184E
(FULL DUPLEX)
*RE
120Ω
120Ω
A
B
Z
Y
DATA IN
DATA OUT
(H/F for MAX13181E/
MAX13183E ONLY)
*RE FOR
Figure 8. Line Repeater for MAX13181E–MAX13184E
DI RO DE
A
B
RE
RO
RO
RO
DI
DI
DI
DE
DE
DE
H/F
D
D
D
R
R
R
BB
B
AAA
120Ω
V
CC
120Ω
D
R
MAX13181E–MAX13184E
CONFIGURED FOR HALF-
DUPLEX OPERATION
RERE
Figure 9. Typical Half-Duplex RS-485 Network
MAX13181E–MAX13184E
+5.0V, ±15kV ESD-Protected, Half-Duplex/
Full-Duplex, RS-485 Transceiver in µDFN
14 ______________________________________________________________________________________
RO
DI
H/F
DE
R
120Ω
120Ω
D
MAX13181E/MAX13183E
CONFIGURED FOR FULL-
DUPLEX OPERATION
RO
DI
DE
R
D
RE
120Ω
120Ω
A
B
Z
Y
A
B
Z
Y
RO
DI
DE
R
D
RE
YZBA
RO
DI
DE
R
D
RE
YZBA
Figure 10. Typical Full-Duplex RS-485 Network
RO
DI
DE
R
120Ω
120Ω
D
MAX13182E/MAX13184E
CONFIGURED FOR FULL-
DUPLEX OPERATION
RO
DI
DE
R
D
RE
120Ω
120Ω
A
B
Z
Y
A
B
Z
Y
RO
DI
DE
R
D
RE
YZBA
RO
DI
DE
R
D
RE
YZBA
Figure 11. Typical Full-Duplex RS-485 Network
MAX13181E–MAX13184E
+5.0V, ±15kV ESD-Protected, Half-Duplex/
Full-Duplex, RS-485 Transceiver in µDFN
______________________________________________________________________________________ 15
Ordering Information (continued)
+
Denotes a lead-free package.
PART TEMP RANGE PIN-PACKAGE TOP MARK PKG CODE
MAX13183EELB+ -40°C to +85°C 10 µDFN ABA L1022-1
MAX13184EELB+ -40°C to +85°C 10 µDFN ABB L1022-1
MAX13184EESD+ -40°C to +85°C 14 SO S14-1
Chip Information
PROCESS: BiCMOS
Pin Configurations (continued)
MAX13182E
MAX13184E
1N.C. 14 V
CC
2RO 13 N.C.
3RE 12 A
4DE 11 B
5DI 10 Z
6GND 9Y
7GND 8 N.C.
TOP VIEW
SO
+

MAX13184EESD+T

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
RS-485 Interface IC Ic Txrx RS-485 +5.0V Esd
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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