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Texas Instruments SN74ALS2233AN — Logic ICs

SN74ALS2233AN FIFO, 64×9, 24 ns, synchronous – TI

MPNSN74ALS2233AN
End of Life

Texas Instruments SN74ALS2233AN, synchronous FIFO, 64×9 depth, 24 ns access time, ALS logic family, active lifecycle, RoHS non-compliant.

$5.34Ref. price · indicative, final on quote
Texas Instruments SN74ALS2233AN datasheet (PDF)
RoHSRoHS non-compliant
Series*
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74ALS2233AN specifications
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Product details

64×9 synchronous FIFO with 24 ns access time

The Texas Instruments SN74ALS2233AN is a synchronous FIFO memory organized 64 words by 9 bits, with a 24 ns access time. It belongs to the ALS logic family and is intended for high-speed data buffering in systems where the read and write clocks run independently. The 9-bit width accommodates an eighth bit plus a parity or control bit alongside the data byte.

Active lifecycle, RoHS non-compliant

However, it is RoHS non-compliant — the leads use a tin-lead finish. This matters for assembly lines that have transitioned to lead-free reflow profiles; verify your soldering process compatibility before committing the BOM line.

What the 24 ns access time means for your bus

The 24 ns access time sets the minimum read-clock period for zero-wait-state operation.

Frequently asked questions

Where can I buy SN74ALS2233AN?

Submit a request for quote to confirm current availability and pricing — this part is not typically stocked on the shelf due to its RoHS non-compliant finish, but it can be sourced on a per-order basis.

What is the access time of SN74ALS2233AN?

The SN74ALS2233AN has a 24 ns access time, specified from the read-clock rising edge to valid data on the outputs. This rating governs the maximum synchronous read rate and the timing margin in your system.

What is the equivalent or replacement for SN74ALS2233AN?

A functional peer is the SN74ACT72241L20RJ, a 64×9 synchronous FIFO in the ACT logic family. However, the SN74ALS2233AN uses ALS technology; verify pin compatibility and timing differences from the respective datasheets before substituting in a design.