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Analog Devices MAX3043CSE+ — Crystals & Oscillators

MAX3043CSE+ RS-485/RS-422 Driver, 250 kbps, 16-SOIC

MPNMAX3043CSE+
End of Life

Maxim Integrated MAX3043CSE+, RS-422/RS-485 Driver, 250 kbps, 4.75V–5.25V, 0°C to 70°C, 16-SOIC, Tube.

$7.43Ref. price · indicative, final on quote
Packaging16-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX3043CSE+ specifications
ParameterValue
TypeDriver
MountingSurface Mount
Voltage4.75V ~ 5.25V
ProtocolRS422, RS485
Operating temperature0°C ~ 70°C
PackageTube
Data rate250kbps
Case16-SOIC (0.154\", 3.90mm Width)
Number of drivers (Receivers)4/0

Product details

4/0 driver count — pure transmit side

The MAX3043CSE+: With four drivers and zero receivers, this part is a transmit-only device. For a bidirectional RS-485 bus you will need a separate receiver or a transceiver. The 250 kbps data rate is typical for Modbus RTU and similar fieldbuses; the slew-limited output keeps radiated emissions manageable without external filtering on short cable runs.

For volume production or BOM continuity, this is a low-risk line item — no urgent replacement search needed.

Frequently asked questions

Does the MAX3043CSE+ operate in full-duplex or half-duplex mode?

The MAX3043CSE+ is a driver only — it does not contain receivers. The protocol (RS-422 or RS-485) and duplex mode depend on the external wiring and the companion receiver. RS-422 typically uses separate transmit and receive pairs for full-duplex; RS-485 can be wired half-duplex with a single pair and direction control.