ICBOMS
RFQ

MAX489EESD+T

Analog Devices

Analog Devices MAX489EESD+T RS-485/RS-422 transceiver, full-duplex, 250 kbps, 1/1 driver/receiver, 4.75-5.25 V supply, 14-SOIC surface mount, -40 to +85°C.

Analog Devices MAX489EESD+T
 Download datasheet (PDF)
[IN STOCK] In Stock: 1 pcs
$3.30/ pc

Volume pricing

Buy Now
Inquire on WhatsApp Upload full BOM

MOQ 1 · Tape & Reel (TR); Cut Tape (CT) · RoHS · EIA-481 · DAP/DDP · T/T

[ORIGINAL SEALED] [PRE-SHIP HD PHOTOS] [30D WARRANTY · COC] [TRACKED DAP/DDP]

Technical specifications

MAX489EESD+T specifications
Parameter / AttributeSpecification / Value
TypeTransceiver
MountingSurface Mount
Supply voltage4.75V ~ 5.25V
ProtocolRS422, RS485
Operating temperature-40°C ~ 85°C
DuplexFull
PackageTape & Reel (TR); Cut Tape (CT)
Data rate250kbps
Case14-SOIC (0.154\", 3.90mm Width)
Receiver hysteresis70 mV
Number of drivers (Receivers)1/1
100% Footprint Match · Solder-Ready (No PCB Redesign Needed)

Need Stock or a Drop-in Second-Source for MAX489EESD+T?

Package: SOIC-8 (Narrow 150mil) · Pin-compatible replacements with immediate Shenzhen spot stock

Footprint Match 100%
Supply Chain & Allocation Reality:

The standard 8-pin RS-485 transceiver is the backbone of Modbus, BACnet, and solar inverter communications. Western brands (Maxim/TI) often face recurring spot premiums. MaxLinear SP485 and 3PEAK TP485E provide 100% pin-compatible, electrical-superior drop-in replacements with enhanced ESD protection.

Verified Pin-Compatible Replacements (2 verified alternatives)

TP485E-SR 3PEAK SOIC-8
100% Drop-in (Zero Code Change)
Availability & Target Pricing:

Enhanced ±15 kV ESD Protection & Stable Spot Delivery

Shenzhen Warehouse Spot Stock (24h Dispatch)

Electrical & Core Specs:

Up to 2.5 Mbps data rate, slew-rate limited for reduced EMI

4.75V – 5.25V (Standard 5V RS-485 bus)

Compatibility & Drop-In Notes: Zero software change required. DE (Driver Enable) and /RE (Receiver Enable) logic thresholds match legacy MAX485.
Package & Solder Footprint: 100% pin-to-pin compatible drop-in (Pin 1: RO, Pin 2: /RE, Pin 3: DE, Pin 4: DI, Pin 5: GND, Pin 6: A, Pin 7: B, Pin 8: VCC). Features ±15 kV IEC 61000-4-2 ESD protection (vastly superior to legacy MAX485 ±2 kV).
Shenzhen Warehouse Stock & MOQ: High reliability automotive and industrial grade parts with millions in monthly factory volume.
Request Volume Quote for TP485E-SR Compare MAX489EESD+T vs TP485E-SR Spec Matrix
SP485EEN-L/TR MaxLinear (Exar) SOIC-8
100% Drop-in (Zero Code Change)
Availability & Target Pricing:

Tier-1 Telecom Specified Second-Source with Proven Track Record

Immediate Reel Stock

Electrical & Core Specs:

Up to 10 Mbps data rate

5.0V ±5%

Compatibility & Drop-In Notes: Identical timing characteristics; drop-in replacement.
Package & Solder Footprint: Direct footprint and electrical substitute.
Shenzhen Warehouse Stock & MOQ: Standard second-source specified by top tier telecommunications equipment manufacturers.
Request Volume Quote for SP485EEN-L/TR Compare MAX489EESD+T vs SP485EEN-L/TR Spec Matrix
Buyer & Quality Checklist for Sourcing Alternatives
  • Check bus fail-safe biasing resistors (pull-up on A, pull-down on B): 3PEAK TP485 includes integrated true fail-safe receiver inputs.
  • Verify 120-ohm termination resistor placement at the physical cable ends of the RS-485 differential pair.
  • Check common-mode input voltage range (-7V to +12V) across remote ground potentials.
Frequently Asked Technical Questions

Q: Can TP485E-SR replace MAX485ESA+ without re-qualifying the PCB layout?

A: Yes. TP485E-SR is an exact 1:1 footprint, electrical, and pinout drop-in for MAX485ESA+ in SOIC-8. Solder pads, pin definitions, voltage levels, and bus drive characteristics match directly, while providing superior ±15kV ESD surge immunity.

Technical details

RS-485 bus transceiver for 5 V industrial links

The MAX489EESD+T is a full-duplex RS-485/RS-422 transceiver from Analog Devices, packing one driver and one receiver into a 14-SOIC package.

250 kbps data rate and 70 mV hysteresis — what they mean on the bus

Rated for 250 kbps, this transceiver handles the common baud rates for Modbus RTU, Profibus DP at lower speeds, and many proprietary RS-485 sensor networks. Full-duplex operation means the driver and receiver are active simultaneously, so the part can transmit and receive on separate twisted pairs without direction switching. This simplifies the firmware compared to half-duplex parts that need a transmit-enable toggle on every packet.

MAX489EESD+T
[ALLOC] verified
Quote
Parts A–Z