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Texas Instruments SN74LS445N — DC-DC Power Modules

SN74LS445N Decimal Decoder, 74LS Series, Active

MPNSN74LS445N
End of Life

Texas Instruments SN74LS445N, 74LS series decimal decoder, active lifecycle, RoHS non-compliant, bulk packaging.

$1.79Ref. price · indicative, final on quote
Texas Instruments SN74LS445N datasheet (PDF)
RoHSRoHS non-compliant
Series*
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

SN74LS445N specifications
ParameterValue
Series*
PackageBulk

Product details

What this decoder does on the board

The Texas Instruments SN74LS445N is a decimal decoder from the 74LS series. It takes a BCD input and drives one of ten outputs low.

However, the part is RoHS non-compliant — it contains lead in the solder finish or die-attach. That matters for any design that must meet EU RoHS or similar restricted-substance regulations. For legacy repairs or military/aerospace builds that have a leaded-solder exemption, this is not a blocker. For new commercial designs targeting RoHS compliance, you would need to look at a lead-free equivalent in the 74LS family or a newer logic family like 74HC or 74HCT.

Because the part is active and not on any phase-out list, lead times are generally standard for a 74LS-series logic IC — no extended broker chase needed. If you are filling a BOM line for a production run or a repair, this is a straightforward line item to qualify.

Frequently asked questions

What is the equivalent of SN74LS445N?

The SN74LS445N is a decimal decoder. A functionally similar part in the same 74LS family is the SN74LS348N, which is an 8-line-to-3-line priority encoder — different decoding logic but same logic family and supply voltage. No direct pin-compatible second source is listed in the available records.