DS50PCI401SQ Texas Instruments Integrated Circuit (Other) In Stock

Name: DS50PCI401SQ
Brand: Texas Instruments
SKU: DS50PCI401SQ
Availability: InStock

DS50PCI401SQ is a 4-lane PCI Express signal repeater from Texas Instruments supporting differential high-speed serial links. It provides per-lane equalization and de-emphasis to extend PCIe traces up to 40 dB of channel loss at 2.5 Gbps per lane. Available from stock worldwide with competitive pricing.

OBSOLETEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

DS50PCI401SQOther

Quick Facts

Manufacturer: Texas Instruments
Package: Other
Pin Count: 54
Lifecycle: OBSOLETE
Datasheet: DS50PCI401SQ Datasheet PDF
Category: Integrated Circuit
Temp Range: -10.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of DS50PCI401SQ?

4-lane PCIe Gen 1 repeater with per-lane adaptive equalization supporting up to 2.5 Gbps per lane
Differential input/output architecture with 120 µA input bias current enabling long PCB trace re-drive
54-pin QCC package optimized for placement between PCIe endpoint and root complex on compact motherboards

What is DS50PCI401SQ used for?

DS50PCI401SQ is used in server motherboards, industrial computers, and embedded computing platforms where PCIe signal integrity degrades over long PCB traces or through connectors. Its adaptive equalization compensates for FR4 dielectric losses on traces longer than 10 inches, making it essential for PCI Express extender cards and backplane-based computing architectures. The device also serves in PCI Express test and measurement equipment that requires clean signal regeneration for reliable link training.

What are the specifications of DS50PCI401SQ?

Pbfree Code	No
YTEOL	0
Differential Output	YES
Driver Number of Bits	4
High Level Input Current-Max	0.00012A
Input Characteristics	DIFFERENTIAL
Interface IC Type	LINE TRANSCEIVER
Interface Standard	GENERAL PURPOSE
JESD-30 Code	R-XQCC-N54
JESD-609 Code	e0
Number of Functions	4
Out Swing-Min	2V
Output Low Current-Max	0.004A
Output Polarity	COMPLEMENTARY
Package Body Material	UNSPECIFIED
Package Equivalence Code	LCC54,.2X.4,20
Package Shape	RECTANGULAR
Package Style	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Qualification Status	Not Qualified
Receive Delay-Max	0.25ns
Receiver Number of Bits	4
Supply Voltage-Max	2.625V
Supply Voltage-Min	2.375V
Supply Voltage-Nom	2.5V
Supply Voltage1-Max	2.625V
Supply Voltage1-Min	2.375V
Supply Voltage1-Nom	2.5V
Surface Mount	YES
Technology	CMOS
Temperature Grade	OTHER
Terminal Finish	Tin/Lead (Sn/Pb)
Terminal Form	NO LEAD
Terminal Pitch	0.5mm
Terminal Position	QUAD
Transmit Delay-Max	0.25ns
Package	Other

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 3
ECCN	EAR99
HTS Code	8542.39.00.60

Where can I find the DS50PCI401SQ datasheet?

DS50PCI401SQ Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for DS50PCI401SQ?

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

Frequently Asked Questions

What per-lane data rate does DS50PCI401SQ support and how does equalization help signal integrity?

DS50PCI401SQ supports 2.5 Gbps per lane (PCIe Gen 1), and its adaptive equalization compensates for up to 40 dB of channel insertion loss across 4 differential lanes, restoring eye opening at the receiver end of long PCB traces or connector-interrupted paths.

How many differential lanes does DS50PCI401SQ contain and what input current does each lane require?

The device integrates 4 bidirectional differential lanes with a maximum high-level input current of 120 µA per input, enabling low-power integration into server and embedded PCIe topologies without requiring additional bias circuitry.

In which package is DS50PCI401SQ available and what are its lead-free status and end-of-life implications?

DS50PCI401SQ is supplied in a 54-pin QCC (R-XQCC-N54) package and carries a JESD-609 code e0 indicating it is not RoHS-compliant (non-lead-free), so designers targeting RoHS-regulated markets should verify regional compliance requirements before sourcing.

For a PCIe backplane extending a PCIe link 18 inches across a chassis, would DS50PCI401SQ eliminate the need for active cable re-drivers?

Yes, DS50PCI401SQ is designed specifically to re-drive PCIe Gen 1 differential signals over lossy channels of up to 40 dB, meaning a typical 18-inch FR4 backplane trace at 2.5 Gbps, which introduces roughly 15 dB to 25 dB of loss, falls well within its compensation budget without an active cable re-driver.

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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Lead Time3-7 business days

MOQFrom 1 piece

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OriginChina (Authorized)

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

Marco Rossi

CTO, AutoDrive Systems, Italy

DS50PCI401SQ Texas Instruments Integrated Circuit (Other) In Stock

What are the key features of DS50PCI401SQ?

What is DS50PCI401SQ used for?

What are the specifications of DS50PCI401SQ?

Compliance & Regulatory

Where can I find the DS50PCI401SQ datasheet?

What are equivalent replacements for DS50PCI401SQ?

Frequently Asked Questions

What per-lane data rate does DS50PCI401SQ support and how does equalization help signal integrity?

How many differential lanes does DS50PCI401SQ contain and what input current does each lane require?

In which package is DS50PCI401SQ available and what are its lead-free status and end-of-life implications?

For a PCIe backplane extending a PCIe link 18 inches across a chassis, would DS50PCI401SQ eliminate the need for active cable re-drivers?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

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