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Texas Instruments 54LS33FMQB — Logic ICs

54LS33FMQB Texas Instruments NOR Gate, LS Series TTL, Active

MPN54LS33FMQB
End of Life

Texas Instruments 54LS33FMQB NOR Gate, LS Series TTL, Bulk package, Active lifecycle.

$0.97Ref. price · indicative, final on quote
Texas Instruments 54LS33FMQB datasheet (PDF)
RoHSNot applicable
Series*
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

54LS33FMQB specifications
ParameterValue
Series*
PackageBulk

Product details

Device identity and logic family

The 54LS33FMQB is a NOR gate from Texas Instruments' LS series of low-power Schottky TTL logic. The LS family balances speed and power, making it a workhorse for legacy and mid-speed digital designs where propagation delay and quiescent current are both constrained.

No stock-holding claim is made; each order is verified against the BOM quantity.

Supplied in Bulk — the standard tube or tray format for through-hole or surface-mount devices. The package type suits prototyping, low-volume production, and rework environments where tape-and-reel feed is unnecessary.

Frequently asked questions

Is 54LS33FMQB obsolete?

Buyers and maintenance techs need to know if the part is still in production to avoid supply issues or plan for redesign.

What is the pinout of 54LS33FMQB?

Design engineers validating fit require pin configuration to ensure correct board layout.

What is the price of 54LS33FMQB?

Sourcing buyers need pricing information for BOM costing and budget planning.

Where can I buy 54LS33FMQB?

Transactional buyers need authorized distributors or stockists to place orders quickly.

What is the equivalent part for 54LS33FMQB?

Brokers and buyers need cross-references when the part is unavailable or for alternate sourcing.

Is 54LS33FMQB a military grade part?

Engineering and sourcing need to confirm MIL-spec compliance for defense or high-reliability applications.