SN74LS240NAlternatives & Equivalent Parts

About SN74LS240N

SN74LS240N is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Dual-In-Line Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.

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Specification Comparison

ParameterSN74LS240NSourceDM74LS240NSN74LS240NSLM1085IS-ADJSN7406DAS3935-BQFTNTTFS5116PLTAGSN74LS240NSR
ManufacturerTexas InstrumentsTexas InstrumentsTexas InstrumentsTexas InstrumentsTexas InstrumentsamsON SemiconductorTexas Instruments
Package TypeDual-In-Line PackagesDual-In-Line PackagesSmall Outline Packages—Small Outline PackagesQuad Flat No-LeadOtherSmall Outline Packages
Pin Count202020—1417820
Temperature Range~ 70.0°C~ 70.0°C——~ 70.0°C-40.0°C ~ 85.0°C-55.0°C ~ 175.0°C~ 70.0°C
Price$0.3054$0.2975$0.4684$0.6601$0.1575$5.8700$0.3787$0.4884
StockIn StockIn StockIn StockIn StockIn StockIn StockIn StockIn Stock
LifecycleACTIVEOBSOLETE—ACTIVEOBSOLETETRANSFERREDACTIVEACTIVE
Electrical Parameters
Pbfree CodeYes—————YesYes
YTEOL150——0—5.415
Control TypeENABLE LOWENABLE LOW—————ENABLE LOW
Count DirectionUNIDIRECTIONALUNIDIRECTIONAL—————UNIDIRECTIONAL
FamilyLSLS——TTL/H/L——LS
JESD-30 CodeR-PDIP-T20R-PDIP-T20——R-PDSO-G14S-XQCC-N16S-PDSO-F8R-PDSO-G20
JESD-609 Codee4———e4—e3e4
Load Capacitance (CL)45 pF150 pF——15 pF——45 pF
Logic IC TypeBUS DRIVERBUS DRIVER——INVERTER——BUS DRIVER
Max I(ol)0.024 A0.024 A——0.04 A——0.024 A
Number of Bits44—————4
Number of Functions82——61—8
Number of Ports22—————2
Output Characteristics3-STATE3-STATE——OPEN-COLLECTOR——3-STATE
Output PolarityINVERTEDINVERTED—————INVERTED
Package Body MaterialPLASTIC/EPOXYPLASTIC/EPOXY——PLASTIC/EPOXYUNSPECIFIEDPLASTIC/EPOXYPLASTIC/EPOXY
Package Equivalence CodeDIP20,.3———SOP14,.25——SOP20,.3
Package ShapeRECTANGULARRECTANGULAR——RECTANGULARSQUARESQUARERECTANGULAR
Package StyleIN-LINEIN-LINE——SMALL OUTLINECHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILESMALL OUTLINESMALL OUTLINE
Packing MethodTUBE———TUBE——TR, 13 INCH
Power Supply Current-Max (ICC)50 mA50 mA——51 mA——50 mA
Prop. Delay@Nom-Sup18 ns18 ns——23 ns——18 ns
Propagation Delay (tpd)18 ns18 ns——23 ns——18 ns
Qualification StatusNot Qualified———Not Qualified—Not QualifiedNot Qualified
Supply Voltage-Max (Vsup)5.25 V5.25 V——5.25 V5.5 V—5.25 V
Supply Voltage-Min (Vsup)4.75 V4.75 V——4.75 V2.4 V—4.75 V
Supply Voltage-Nom (Vsup)5 V5 V——5 V——5 V
Surface MountNONO——YESYESYESYES
TechnologyTTLCMOS——TTL——TTL
Temperature GradeCOMMERCIALCOMMERCIAL——COMMERCIALINDUSTRIAL—COMMERCIAL
Terminal FinishNickel/Palladium/Gold (Ni/Pd/Au)———Nickel/Palladium/Gold (Ni/Pd/Au)—Matte Tin (Sn) - annealedNickel/Palladium/Gold (Ni/Pd/Au)
Terminal FormTHROUGH-HOLETHROUGH-HOLE——GULL WINGNO LEADFLATGULL WING
Terminal Pitch2.54 mm2.54 mm——1.27 mm0.65 mm—1.27 mm
Terminal PositionDUALDUAL——DUALQUADDUALDUAL
## SN74LS240N Alternates Showing resultsImage———————
Additional Feature————IOL = 40MA @ VOL = 0.7V; IOH = 0.25MA @ VOH = 30V———
Number of Inputs————1———
Peak Reflow Temperature (Cel)————260260260260
Schmitt Trigger————NO———
Time@Peak Reflow Temperature-Max (s)————30—3030
## SN7406D Alternates Showing results————Image———
Analog IC - Other Type—————ANALOG CIRCUIT——
Manufacturer Package Code——————511AB—
Avalanche Energy Rating (Eas)——————45 mJ—
Case Connection——————DRAIN—
Configuration——————SINGLE WITH BUILT-IN DIODE—
DS Breakdown Voltage-Min——————60 V—
Drain Current-Max (ID)——————5.7 A—
Drain-source On Resistance-Max——————0.052 Ω—
FET Technology——————METAL-OXIDE SEMICONDUCTOR—
Feedback Cap-Max (Crss)——————84 pF—
Number of Elements——————1—
Operating Mode——————ENHANCEMENT MODE—
Polarity/Channel Type——————P-CHANNEL—
Power Dissipation-Max (Abs)——————40 W—
Pulsed Drain Current-Max (IDM)——————76 A—
Transistor Application——————SWITCHING—
Transistor Element Material——————SILICON—

Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.

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Quick Links

DM74LS240Nby Rochester Electronics LLC

Bus Driver, LS Series, 2-Func, 4-Bit, Inverted Output, TTL, PDIP20

SN7406D

suggested

SN74LS240NSRby Texas Instruments

Bus Driver, LS Series, 8-Func, 4-Bit, Inverted Output, TTL, PDSO20

Why Look for Alternatives?

Finding alternatives for SN74LS240N is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.

When evaluating SN74LS240N replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.

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FAQ

What is equivalent to SN74LS240N?

Known equivalents for SN74LS240N include DM74LS240N, SN74LS240NS, LM1085IS-ADJ. Contact FindMyChip for a full compatibility analysis for your specific application.

Can I use a different manufacturer's part instead of SN74LS240N?

In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.

How do I verify SN74LS240N alternatives?

Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.