Maxim MAX3280EAUK+

Mfr. Part

MAX3280EAUK+

Manufacturer

Analog Devices / Maxim Integrated. Y-IC is a quality distributor of this brand and we will provide customers with the best products and services.

Detailed Description

Compact RS‑485/RS‑422 transceiver IC for differential serial communication networks. Designed for robust data links in noisy industrial environments. Operates from a single low-voltage supply with enhanced ESD protection, fail-safe receiver behavior, and low-power modes, all in a space-saving package.

Main Category: Integrated Circuits (ICs)

Small Classification: Specialized ICs

Available Quantity: 2300

Package / Case: 1057

Key Features

RS‑485/RS‑422 transceiver for differential serial buses

Low-voltage single supply (3.3V typical)

Enhanced ESD protection on bus pins

Receiver fail-safe (defined outputs on open, short, or idle bus)

Low-power standby/shutdown mode

Hot-swap tolerant inputs to prevent glitches during power insertion

Current limiting and thermal shutdown for driver protection

Driver enable (DE) and receiver enable (RE) control pins

Small 8-pin footprint for tight PCB layouts

Industrial temperature operation

Key Advantages

Reliable communications in electrically noisy environments

Saves board space and reduces BOM by integrating driver and receiver

Protects equipment and the bus against ESD and short faults

Low standby current extends battery life in power-sensitive designs

Simple interface to microcontrollers with logic-level control pins

Fast time-to-market thanks to proven RS‑485/RS‑422 compliance

Packaging

Type: Small-outline plastic IC, 8-pin (Package/Case code 1057)

Material: Molded epoxy, lead-free, RoHS compliant; copper leadframe with tin finish

Size: Approx. 3mm x 3mm class footprint (compact 8-pin outline; refer to datasheet for exact mechanical dimensions)

Pin configuration (typical for 8-pin RS‑485 transceiver):

• VCC: 3.3V supply

• GND

• DI: Driver input (logic)

• RO: Receiver output (logic)

• DE: Driver enable

• RE: Receiver enable (active-low)

• A, B: Differential bus lines

Thermal characteristics: Integrated thermal shutdown; typical θJA for small 8-pin plastic packages in the 150–220°C/W range depending on PCB (see datasheet for tested values)

Electrical properties (typical):

• Supply voltage: ~3.0V to 3.6V

• Common-mode range suited for RS‑485 networks

• High ESD robustness on bus pins

• Data rate capability suitable for industrial links (consult datasheet for exact Mbps rating)

• Receiver fail-safe thresholding to avoid false toggles on floating bus

Lifecycle

Status: Active and widely used in industrial communication designs; not nearing discontinuation based on current market status.

Equivalent and alternative models (verify pinout, voltage, speed, and protections before substitution):

• Analog Devices/Maxim: MAX3485E (3.3V, half-duplex RS‑485), MAX485E (5V), MAX3082E/MAX3088E families (RS‑485/RS‑422, various speeds), ADM3485E (3.3V RS‑485)

• Texas Instruments: SN65HVD12/SN65HVD178x series (robust RS‑485), THVD1410/THVD1420 (3.3V RS‑485)

• Microchip: MCP2561 is CAN (not RS‑485; do not substitute), use Microchip’s 3.3V RS‑485 transceivers such as MCP3300-series equivalents for RS‑485

• NXP/Exar/Renesas: SP485E, ISL317x series (RS‑485 transceivers)

If you do not find a perfect equivalent, please contact our sales team via our website for model-matching assistance and more alternatives.

Key Application Areas

Industrial RS‑485 networks: PLCs, motor drives, factory automation

Building automation: HVAC controllers, elevator systems, lighting networks

Security systems: access control panels, alarm networks

Smart energy and metering: data concentrators, power meters

Remote sensors and data acquisition: IoT gateways, environmental monitoring

Retail and commercial: point-of-sale, vending machines, kiosks

Datasheet

Our website hosts the most authoritative datasheet for MAX3280EAUK+. We recommend downloading it directly on this page to get exact electrical specs, timing, pinouts, and mechanical drawings.

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