SN74128NE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

Name: SN74128NE4
Brand: Texas Instruments
SKU: SN74128NE4
Availability: InStock

Texas Instruments SN74128NE4 is a quad 50-ohm line driver IC featuring four NOR gate functions in a 14-pin DIP package with TTL/H/L family compatibility. It provides high output current of 48mA sink and 42.4mA source for driving terminated transmission lines. Available from stock with worldwide shipping.

OBSOLETEIntegrated CircuitVerified May 2026

Package / Visual Reference

SN74128NE4Dual-In-Line Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Dual-In-Line Packages
Pin Count: 14
Lifecycle: OBSOLETE
Datasheet: SN74128NE4 Datasheet PDF
Category: Integrated Circuit
Temp Range: ?°C to 70.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of SN74128NE4?

Quad 50-ohm line driver with IOL = 48mA at VOL = 0.4V and IOH = 42.4mA at VOH = 2V for robust line driving
Four independent NOR gate functions in a compact 14-pin PDIP package for easy board integration
TTL/H/L family compatibility with 50 pF load capacitance rating for high-speed signal transmission

What is SN74128NE4 used for?

The SN74128NE4 is designed for driving terminated transmission lines in digital communication systems, backplane interconnects, and industrial control equipment where signal integrity over long distances is critical. Its high output current capability makes it well-suited for bus driving in computing and networking applications. The device is also applicable in test and measurement instruments requiring reliable TTL logic-level signal distribution.

What are the specifications of SN74128NE4?

Pbfree Code	Yes
YTEOL	0
Additional Feature	IOL = 48MA @ VOL = 0.4V; IOH = 42.4MA @ VOH = 2V
Family	TTL/H/L
JESD-30 Code	R-PDIP-T14
JESD-609 Code	e4
Load Capacitance (CL)	50pF
Logic IC Type	NOR GATE
Max I(ol)	0.048A
Number of Functions	4
Number of Inputs	2
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	DIP14,.3
Package Shape	RECTANGULAR
Package Style	IN-LINE
Power Supply Current-Max (ICC)	57mA
Prop. Delay@Nom-Sup	12ns
Propagation Delay (tpd)	18ns
Qualification Status	Not Qualified
Schmitt Trigger	NO
Supply Voltage-Max (Vsup)	5.25V
Supply Voltage-Min (Vsup)	4.75V
Supply Voltage-Nom (Vsup)	5V
Surface Mount	NO
Technology	TTL
Temperature Grade	COMMERCIAL
Terminal Finish	NICKEL PALLADIUM GOLD
Terminal Form	THROUGH-HOLE
Terminal Pitch	2.54mm
Terminal Position	DUAL
Package	Dual-In-Line Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
HTS Code	8542.39.00.60

Where can I find the SN74128NE4 datasheet?

SN74128NE4 Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for SN74128NE4?

Compatible alternatives and drop-in replacements for SN74128NE4:

SN74128NTexas Instruments

NOR Gate, TTL/H/L Series, 4-Func, 2-Input, TTL, PDIP14

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What is the output current capability of the SN74128NE4?

The SN74128NE4 provides a maximum sink current (IOL) of 48mA at VOL = 0.4V and a source current (IOH) of 42.4mA at VOH = 2V, making it suitable for driving 50-ohm terminated transmission lines.

What logic family does the SN74128NE4 belong to?

The SN74128NE4 belongs to the TTL/H/L logic family. It contains four NOR gate line driver functions and is compatible with standard TTL voltage levels and interfacing requirements.

What package does the SN74128NE4 use and how many pins does it have?

The SN74128NE4 comes in a 14-pin PDIP (Plastic Dual In-Line Package), identified by JESD-30 code R-PDIP-T14, which is suitable for through-hole PCB assembly and breadboard prototyping.

What are typical applications for the SN74128NE4?

Typical applications include driving terminated transmission lines in backplane buses, digital communication systems, industrial control equipment, and computing interconnects where high output current and signal integrity are required over distances.

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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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CTO, AutoDrive Systems, Italy

SN74128NE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

What are the key features of SN74128NE4?

What is SN74128NE4 used for?

What are the specifications of SN74128NE4?

Compliance & Regulatory

Where can I find the SN74128NE4 datasheet?

What are equivalent replacements for SN74128NE4?

Frequently Asked Questions

What is the output current capability of the SN74128NE4?

What logic family does the SN74128NE4 belong to?

What package does the SN74128NE4 use and how many pins does it have?

What are typical applications for the SN74128NE4?

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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