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Texas Instruments 54LS244FMQB — Analog & Data Acquisition

54LS244FMQB Texas Instruments LS Series Bus Driver, Bulk

MPN54LS244FMQB
End of Life

Texas Instruments 54LS244FMQB, LS Series TTL Bus Driver, 3-state outputs, Bulk package, Active lifecycle.

$3.55Ref. price · indicative, final on quote
RoHSNot applicable
Series*
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

54LS244FMQB specifications
ParameterValue
Series*
PackageBulk

Product details

LS-series octal bus driver with 3-state outputs

The Texas Instruments 54LS244FMQB is an LS-series TTL bus driver, a non-inverting octal buffer with 3-state outputs designed for driving bus lines or buffering memory-address registers. Listed under the Analog & Data Acquisition category, its primary function is to provide high-current drive capability while presenting a light load to the source, a standard role for octal line drivers in 5V TTL logic systems.

Active lifecycle and bulk packaging

Supplied in Bulk packaging, it is suited for through-hole or socketed assembly in prototyping, rework, or low-to-medium volume production runs where tape-and-reel is not required.

Frequently asked questions

What is the 54LS244FMQB used for?

The 54LS244FMQB is an LS-series TTL bus driver — an octal buffer with 3-state outputs used to drive bus lines, memory-address registers, or other high-capacitance loads in 5V digital logic systems.

How does the 54LS244FMQB compare to the SN74AHCT540DGVR?

The SN74AHCT540DGVR is a 74AHCT-series inverting buffer with 3-state outputs, while the 54LS244FMQB is a non-inverting LS-series bus driver. The 54LS244FMQB operates at 5V TTL levels; the SN74AHCT540DGVR runs at 4.5V and is surface-mount. They are not pin-compatible — the 54LS244FMQB is a through-hole or socketed device in Bulk, while the SN74AHCT540DGVR is a surface-mount part on tape-and-reel.