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Manufacturer Part#:

MAX491EESD+

Product Category: IC chips
Manufacturer: Maxim Integrated
Description: IC TXRX RS485/RS422 14-SOIC
  datasheetMAX491EESD+  Datasheet
Package: 14-SOIC
Quantity: 4906 PCS
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Lead Time: one to seven days
Click buy button to purchase: Buy
PRODUCT DETAILS

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Product Attributes

Manufacturer:

Maxim Integrated

Product Category:

Interface - Drivers, Receivers, Transceivers

Series:

MAX491E

Type:

Transceiver

Status:

Active

Mounting-Type:

Surface Mount

Mounting-Style:

SMD/SMT

Brand:

Maxim Integrated

Data Rate:

2.5Mbps

Data Transmission Topology:

Multidrop|Multipoint

Device Type:

Line Driver / Receiver

Driver Case Style:

SOIC

Driving Mode:

3-State

Duplex:

Full

ESD Protection:

Yes

Function:

Line Transmitter/Receiver

IC Interface Type:

RS422, RS485

Input Characteristics:

DIFFERENTIAL SCHMITT TRIGGER

JESD-30 Code:

R-PDSO-G14

JESD-609 Code:

e3

Lead Finish:

Matte Tin

Maximum Operating Temperature:

+ 85 °C

Minimum Operating Temperature:

- 40 °C

Maximum Supply Voltage:

5.25V

Minimum Supply Voltage:

4.75V

Nominal Supply Voltage:

5 V

Maximum Supply Current:

0.5 mA

Number of Functions:

1

Number of Drivers:

1

Number of Receivers:

1

Number of Drivers per Line

32

Number of Receivers per Line

32

Number of Transceivers:

1

Number of Transmitters:

1

Number of Terminals:

14

Out Swing-Min:

1.5 V

Output Low Current-Max:

0.004 Amp

Output Voltage:

3 V

Output Polarity:

COMPLEMENTARY

Package / Case:

14-SOIC (0.154", 3.90mm Width)

Packaging:

Tube Alternate Packaging

Mfr Package Description:

0.150 INCH, LEAD FREE, MS-012B, SOIC-14

Package Body Material:

PLASTIC/EPOXY

Package Code:

SOP

Package Equivalence Code:

SOP14,.25

Package Shape:

RECTANGULAR

Package Style:

SMALL OUTLINE

Part # Aliases:

MAX491E

Pd-Power-Dissipation:

667 mW

Peak Reflow Temperature (Cel):

260

Pin Count:

14

Power Supply Type:

Single

Protocol:

RS422, RS485

Propagation Delay Time:

40 ns, 60 ns

Receiver Hysteresis:

70 mV

Receiver Communication Type:

RS-422|RS-485

Receiver Signal Type:

Differential

Screening Level:

Extended

Subcategory:

Interface ICs

Supplier Device Package:

14-SOIC

Technology:

CMOS

Temperature Grade:

INDUSTRIAL

Terminal Finish:

Matte Tin (Sn)

Terminal Form:

GULL WING

Terminal Pitch:

1.27 mm

Terminal Position:

DUAL

Transmitter Communication Type:

RS-422|RS-485

Transmitter Signal Type:

Differential

Unit-Weight:

0.011923 oz

CNHTS:

8542319000

HTS Code:

8542390001

MXHTS:

85423999

TARIC:

8542399000

Additional Feature:

1 RECEIVER ACTIVE UNDER SHUTDOWN; TRISTATABLE RECEIVER


Lifecycle Status Indicator

MAX491EESD+   Lifecycle Status Indicator

MAX491EESD+   Lifecycle Status Indicator


Overview

The MAX481E, MAX483E, MAX485E, MAX487E- MAX491E, and MAX1487E are low-power transceivers for RS-485 and RS-422 communications in harsh environments. Each driver output and receiver input is protected against ±15kV electro-static discharge (ESD) shocks, without latchup. These parts contain one driver and one receiver. The MAX483E, MAX487E, MAX488E, and MAX489E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, thus allowing error-free data transmission up to 250kbps. The driver slew rates of the MAX481E, MAX485E, MAX490E, MAX491E, and MAX1487E are not limited, allowing them to transmit up to 2.5Mbps.

These transceivers draw as little as 120µA supply current when unloaded or when fully loaded with disabled drivers (see Selector Guide). Additionally, the MAX481E, MAX483E, and MAX487E have a low-current shutdown mode in which they consume only 0.5µA. All parts operate from a single +5V supply.

Drivers are short-circuit current limited, and are protected against excessive power dissipation by thermal shutdown circuitry that places their outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit.

The MAX487E and MAX1487E feature quarter-unit-load receiver input impedance, allowing up to 128 transceivers on the bus. The MAX488E-MAX491E are designed for full-duplex communications, while the MAX481E, MAX483E, MAX485E, MAX487E, and MAX1487E are designed for half-duplex applications. For applications that are not ESD sensitive see the pinand function-compatible MAX481, MAX483, MAX485, MAX487-MAX491, and MAX1487.


Advantages and Disadvantages

There is no relevant information available for this part yet.


Applications

 Industrial-Control Local Area Networks

 Level Translators

 Low-Power RS-422 Transceivers

 Low-Power RS-485 Transceivers

 Transceivers for EMI-Sensitive Applications


Dimensions

Length

8.75 mm

Width

4 mm

Height

1.5 mm


Compliance

Lead Free

Lead Free

REACH SVHC

No SVHC

Radiation Hardening

No

RoHS

Compliant


ECCN / UNSPSC

Description

Value

ECCN

5A991.B.4

HTSN

8542390001

SCHEDULE B

8542390000


Documents & Media

Datasheet

MAX491ECSD+T Datasheet

Application Notes

Maxim Leads the Way in ESD Protection

ESD Protection for I/O Ports

FAQs about Interface, RS-232, and RS-485 Circuits

Oops...Practical ESD Protection vs. Foolhardy Placebos

Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface

Environmental Information

Halogen Certificate

Red Phosphorous Certificate



Product Manufacturer

Maxim Integratedis an American, publicly traded company that designs, manufactures, and sells analog and mixed-signal integrated circuits.

Maxim Integrated develops integrated circuits (ICs) for the automotive, industrial, communications, consumer, and computing markets. The company is headquartered in San Jose, California, and has design centers, manufacturing facilities, and sales offices throughout the world. In the fiscal year 2018, it had US$2.48 billion in sales, 7150 employees, and 35,000 customers worldwide. Maxim is a Fortune 1000 company and its stock is a component of the NASDAQ-100 stock market index.

Maxim's product portfolio now includes power and battery management ICs, sensors, analog ICs, interface ICs, communications solutions, digital ICs, embedded security, and microcontrollers. In these product segments, the company has made some notable achievements.

Analog ICs are a core product area for Maxim. These high-performance building blocks provide a variety of features and capabilities, from ultra-low power consumption to extended battery life, precision signal conversion, and rugged connectivity. A highlight in 2018 for this versatile product line was the electronica 2018 trade show, where attendees saw demos including a nanoPower watch, force-touch technology, CAN ESD protection, and an ISM RF transmitter-based home automation system.


Product Range

Sensors

Power

MOSFET Drivers and Controllers

Analog

Interface

Communications

Digital

Embedded Security

Microcontrollers


Distributors

Distributors

Stock

Manufacturers

Descriptions

Kynix

4906

Maxim Integrated

IC TXRX RS485/RS422 14-SOIC

DigiKey

3098

Maxim Integrated

IC TXRX RS485/RS422 14-SOIC

Mouser

569

Maxim Integrated

RS-422/RS-485 Interface IC RS-485/RS-422 Transceiver

Avnet

3

Maxim Integrated

Single Transmitter/Receiver RS-422/RS-485 14-Pin SOIC N


Alternative Models

Kynix Part Number

Manufacturer Part Number

Stock

Manufacturer

Description

KY0-MAX491ECSD+

MAX491ECSD+

14084

Maxim Integrated

IC TXRX RS485/RS422 LP 14-SOIC

KY0-MAX491ECSD+T

MAX491ECSD+T

27584

Maxim Integrated

IC TXRX RS232 460KBPS SOT23-8


Popularity by Region

MAX491EESD+   Popularity by Region

MAX491EESD+   Popularity by Region


Market Price Analysis

MAX491EESD+   Market Price Analysis

MAX491EESD+   Market Price Analysis

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