SP491ECN-L EXAR Integrated Circuit (Other) In Stock

SP491ECN-L is a 5 V serial interface IC from EXAR. Key specs include 5 V, SOP-14, and 14 pins for serial communication interfaces. From request-based pricing, in-stock sourcing and worldwide shipping support production builds.

OBSOLETEIntegrated CircuitVerified Jul 2026
Package / Visual Reference
SP491ECN-LOther
Quick Facts
Manufacturer
EXAR
Package
Other
Pin Count
14
Lifecycle
OBSOLETE
Category
Integrated Circuit
Temp Range
?°C to 70.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

Key Features

  • 5 V specification for serial communication interfaces
  • SOP-14 and 14 pins for production PCB planning
  • Manufacturer-qualified serial interface IC from EXAR
  • Suited to serial communication interfaces and BOM replacement sourcing

Applications

SP491ECN-L is used in industrial networking, data acquisition, building controls, and embedded serial communication links. Its 5 V specification helps engineers match electrical and mechanical constraints without oversizing the BOM item. Buyers commonly qualify it for maintenance stock, prototype validation, and production builds where the original manufacturer part number must remain traceable.

Specifications

YTEOL0
Differential OutputYES
Driver Number of Bits1
High Level Input Current-Max0.00001A
Input CharacteristicsDIFFERENTIAL SCHMITT TRIGGER
Interface IC TypeLINE TRANSCEIVER
Interface StandardEIA-422; EIA-485
JESD-30 CodeR-PDSO-G14
JESD-609 Codee3
Number of Functions1
Out Swing-Min1.5V
Output Low Current-Max0.004A
Package Body MaterialPLASTIC/EPOXY
Package Equivalence CodeSOP14,.25
Package ShapeRECTANGULAR
Package StyleSMALL OUTLINE
Peak Reflow Temperature (Cel)260
Qualification StatusNot Qualified
Receive Delay-Max100ns
Receiver Number of Bits1
Supply Voltage-Max5.25V
Supply Voltage-Min4.75V
Supply Voltage-Nom5V
Surface MountYES
TechnologyBICMOS
Temperature GradeCOMMERCIAL
Terminal FinishMatte Tin (Sn)
Terminal FormGULL WING
Terminal Pitch1.27mm
Terminal PositionDUAL
Time@Peak Reflow Temperature-Max (s)40
Transmit Delay-Max60ns
PackageOther

Compliance & Regulatory

RoHS StatusCompliant
Lead-FreeYes (Pb-Free)
Moisture Sensitivity LevelMSL 1
ECCNEAR99
HTS Code8542.39.00.60

Datasheet

SP491ECN-L Datasheet Download

Official datasheet from EXAR

Alternate & Equivalent Parts

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

For serial communication interfaces, when does SP491ECN-L's 5 V rating make sense?

SP491ECN-L is suited to serial communication interfaces where the design needs 5 V performance from a serial interface IC. Engineers should still verify the manufacturer datasheet against operating margins and approved BOM requirements.

What board-layout checks matter for SP491ECN-L in SOP-14 packaging?

SP491ECN-L uses SOP-14 packaging with 14 pins, so layout teams should confirm footprint, clearance, soldering method, and inspection rules before releasing the board for production.

Which sourcing details matter when qualifying SP491ECN-L for a production BOM?

Before substitution, buyers should confirm 5 V, 14 pins, lifecycle status, and manufacturer traceability for SP491ECN-L. Matching those details reduces requalification risk across production and service inventory.

Related Guides

Why Buy from FindMyChip

Authorized Source
Verified supply chain with full traceability & inspection
$
Competitive Pricing
Factory-direct from China distributors, low MOQ
Fast Shipping
DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide
Quality Guaranteed
30-day replacement for defective parts, no questions asked

About EXAR

EXAR is a leading electronic component manufacturer. FindMyChip sources EXAR ICs directly from authorized China distributors, offering competitive pricing and reliable stock.

AvailabilityIn Stock
Reference Price (USD)
Contact for Price
Buy from 1pc · Factory-direct pricing
pcs

In Stock · 24h Response · Worldwide Shipping

Lead Time3-7 business days
MOQFrom 1 piece
ShippingDHL / FedEx / UPS
OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.

MR
Marco Rossi
CTO, AutoDrive Systems, Italy