MAX3280E/MAX3281E/
MAX3283E/MAX3284E
1ꢀ5kVEꢁSD-PotectedVꢀ2Mbps,V3kVtoVꢀ.ꢀk,VꢁOT23
RꢁD48ꢀ/RꢁD422VTPueVFailDꢁafeVReceivePs
GenePalVSescPiption
FeatuPes
The MAX3280E/MAX3281E/MAX3283E/MAX3284E are
single receivers designed for RS-485 and RS-422 com-
munication. These devices guarantee data rates up to
52Mbps, even with a 3V power supply. Excellent propa-
gation delay (15ns max) and package-to-package
skew time (8ns max) make these devices ideal for mul-
tidrop clock distribution applications.
o ESD Protection:
1ꢀ5k ꢁHman ꢂody Model
65k ꢃEꢄ 1ꢅꢅꢅ-4-2, ꢄontact Discꢆarge
125k ꢃEꢄ 1ꢅꢅꢅ-4-2, ꢇir-ꢈap Discꢆarge
o ꢈHaranteed ꢀ2Mbps Data Rate
o ꢈHaranteed 1ꢀns Receiver Propagation Delay
o ꢈHaranteed 2ns Receiver S5ew
The MAX3280E/MAX3281E/MAX3283E/MAX3284E
have true fail-safe circuitry, which guarantees a logic-
high receiver output when the receiver inputs are
opened or shorted. The receiver output will be a logic
high if all transmitters on a terminated bus are disabled
(high impedance). These devices feature 1/4-unit-load
receiver input impedance, allowing up to 128 receivers
on the same bus.
o ꢈHaranteed 8ns Pac5age-to-Pac5age S5ew Time
o k Pin for ꢄonnection to FPꢈꢇs/ꢇSꢃꢄs
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o ꢇllow Up to 128 Transceivers on tꢆe ꢂHs
(1/4-Hnit-load)
o Tiny SOT23 Pac5age
The MAX3280E is a single receiver available in a 5-pin
SOT23 package. The MAX3281E/MAX3283E single
receivers have a receiver enable (EN or EN) function
and are offered in a 6-pin SOT23 package. The
MAX3284E features a voltage logic pin that allows com-
patibility with low-voltage logic levels, as in digital
FPGAs/ASICs. On the MAX3284E, the voltage threshold
o TrHe Fail-Safe Receiver
o -7k to +12k ꢄommon-Mode Range
o 3k to ꢀ.ꢀk Power-SHpply Range
o Enable (ꢁigꢆ and Low) Pins for RedHndant
Operation
for a logic high is user-defined by setting V in the
L
o Tꢆree-State OHtpHt Stage (MꢇX3281E/MꢇX3283E)
o Tꢆermal Protection ꢇgainst OHtpHt Sꢆort ꢄircHit
range from 1.65V to V . The MAX3284E is also
CC
offered in a 6-pin SOT23 package.
Applications
OPdePingVInfoPmation
Clock Distribution
Telecom Racks
Base Stations
PIN-
TOP
PART
TEMP RANGE
PACKAGE MARK
MAX3280EAUK+T -40°C to +125°C 5 SOT23
MAX3280EAUK/V+T -40°C to +125°C 5 SOT23
MAX3281EAUT+T -40°C to +125°C 6 SOT23
MAX3283EAUT+T -40°C to +125°C 6 SOT23
MAX3284EAUT+T -40°C to +125°C 6 SOT23
+ADVM
+AFME
+ABAT
+ABAU
+ABAV
Industrial Control
Local Area Networks
Pin ꢄonfigHrations appear at end of data sꢆeet.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
/V denotes an automotive qualified part.
ꢁelectoPVGuide
PꢇRT
k
ENꢇꢂLE
—
DꢇTꢇ RꢇTE
52Mbps
PꢇꢄKꢇꢈE
5-Pin SOT23
6-Pin SOT23
6-Pin SOT23
6-Pin SOT23
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MAX3280E
MAX3281E
MAX3283E
MAX3284E
—
—
—
✔
Active High
Active Low
—
52Mbps
52Mbps
52Mbps (Note 1)
Note 1: MAX3284E data rate is dependent on V .
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For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-2320; Rev 2; 12/12