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Texas Instruments SN74180N — Analog & Data Acquisition
Texas Instruments

SN74180N 8-bit parity generator/checker, Active, DIP

MPNSN74180N
End of Life

Texas Instruments SN74180N, 8-bit parity generator/checker, standard TTL logic, DIP package, active lifecycle, RoHS non-compliant.

$1.36Ref. price · indicative, final on quote
SN74180N datasheet
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

SN74180N Technical Specifications
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Product details

What the SN74180N is and where it fits

The Texas Instruments SN74180N is a 8-bit parity generator and checker implemented in standard TTL logic. It evaluates odd or even parity across eight data lines and a ninth input for cascading, producing both odd and even parity outputs. This part belongs to the 74xx series and is packaged in a DIP — the 'N' suffix indicates the plastic dual-in-line package. Typical applications include data transmission error checking in legacy bus architectures, memory system integrity verification, and serial communication links where a single parity bit is added to 8-bit data words.

RoHS non-compliant — plan for it

The SN74180N is listed as RoHS non-compliant, which means the leads and internal solder joints contain lead. For new production runs that must meet RoHS directives, this part requires a waiver or exemption. For repair, retrofit, or legacy-support BOMs where leaded solder is already in the process, the non-compliant status is not a blocker.

Sourcing reality for the SN74180N

Because the SN74180N is an active, RoHS non-compliant TTL part, it does not sit on every distributor's fast-moving shelf. If you are filling a BOM line for a legacy system or a repair depot, this is the kind of part that gets quoted to order — we source it against your RFQ and confirm lead time and pricing in the quote. No stock promises on the page, but the part is findable.

Frequently asked questions

Does SN74180N work with 5V logic levels?

Yes, the SN74180N is a standard 74xx TTL device designed for a 5 V supply. It uses standard TTL input thresholds (V_IH around 2 V, V_IL around 0.8 V) and is compatible with other 5 V TTL logic families. It is not 3.3 V tolerant.

What are the direct replacements or equivalents for SN74180N?

The evidence does not list a direct pin-compatible replacement or equivalent for the SN74180N. The 74LS180 (SN74LS180) is a lower-power Schottky variant with the same 8-bit parity function, but pin compatibility depends on the specific package and logic family — verify the pinout against your board before substituting.

What is SN74180N used for?

The SN74180N is an 8-bit parity generator and checker used in data transmission systems to add or verify a parity bit for error detection. It is commonly found in legacy digital systems, memory interfaces, and serial communication links where 8-bit data plus parity is the protocol.