MAX491ECSD

Images are for reference only

MAX491ECSD

IC TRANSCEIVER FULL 1/1 14SOIC

  • Manufacturer
  • Mfr. Part #MAX491ECSD
  • Package
  • Datasheet
  • In Stock6942

100% Original & New

24 Hours ready to ship

365 Days Warranty

RFQ & Get more Discounts

Specifications

Part Status Active
Type Transceiver
Protocol RS422, RS485
Number of Drivers/Receivers 1/1
Duplex Full
Receiver Hysteresis 70 mV
Data Rate 2.5Mbps
Voltage - Supply 4.75V ~ 5.25V
Operating Temperature 0°C ~ 70°C
Mounting Type Surface Mount
Package / Case 14-SOIC (0.154", 3.90mm Width)
Supplier Device Package 14-SOIC
Base Product Number MAX491

Overview

Description

MAX491ECSD is a Maxim Integrated (now part of Analog Devices) 5V RS-485/RS-422 transceiver. It provides a built-in driver and receiver for half‑duplex differential networks, ideal for industrial and multi-point serial links.
Key points:
- 5V single-supply, differential RS-485/RS-422 interface
- DI (data in) and RxD (data out) with TTL/CMOS compatibility
- DE and /RE controls to enable/disable the transmitter and receiver (3-state outputs)
- Fail-safe receiver output when inputs are open, shorted, or idle
- Low power and suitable for small, compact packages
- Bus pins A and B with protection features; robust operation in noisy environments
ECSD is a suffix variant indicating a specific package/temperature grade; check the datasheet for exact details on packaging, temperature range, and electrical characteristics. Typical uses include industrial automation, building control, and any RS-485 multi-point network requiring reliable, simple interfacing.

Features

MAX491ECSD Features (RS-485/RS-422 transceiver)
- Half-duplex differential driver/receiver pair (A/B) for RS-485/RS-422
- Single-supply operation at 5V
- DI/RO/DE/RE controls for easy in/out enable
- Robust protection on bus pins (A/B) and input/output
- Fail-safe receiver: RO is high when inputs are open, idle, or shorted
- Low-power operation with enables for power saving
- 8-pin package (ECSD variant) suitable for compact PCBs
- Industrial temperature range (typical) for harsh environments
Note: For exact electrical specs (data rate, drive strength, thermal, and pinout), please refer to the official MAX491ECSD datasheet.

Package

The MAX491ECSD comes in an 8-pin SOIC (D) surface-mount package.

Pinout

8 pins. Function: MAX491ECSD is a single-channel RS-485/RS-422 transceiver (half‑duplex) with a driver and a receiver. It provides DI (data in) to the differential bus (A, B) via the driver, RO (data out) from the receiver, and control pins DE (driver enable) and RE (receiver enable/bar). Used for differential bus communication.

Manufacturer

MAX491ECSD is manufactured by Maxim Integrated, which is now part of Analog Devices. Maxim Integrated was a U.S. semiconductor company that specialized in analog and mixed-signal ICs. Analog Devices is a global semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits.

Application

MAX491ECSD is a low‑power RS‑485/RS‑422 transceiver. Typical applications include: industrial automation and control networks (PLCs, HMIs), building and process automation, data acquisition and telemetry, instrumentation and test equipment, and multi‑point sensor/actuator networks. Suitable for 5V systems with long cable runs in noisy environments, enabling robust differential communication.

Equivalent

MAX491ECSD is an RS-485/RS-422 transceiver. Common cross-references from other vendors include:
- Analog Devices ADM485
- Texas Instruments SN65HVD178 and SN65HVD178A
- STMicroelectronics SP485 (and SP3485)
Note: pinout, voltage, and package variations mean they’re not always direct drop‑in—check datasheets for compatibility.

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

Similar