1K x 4 SRAM — what the density tells you
The Texas Instruments TMS2114L-20NL is a standard SRAM organised as 1K words by 4 bits. That 1Kx4 layout targets narrow-bus legacy systems — think 8-bit or 16-bit microprocessors that need a small scratchpad or display buffer. Each read or write cycle moves a nibble, so two devices side-by-side give you an 8-bit word. The 20 ns access-time suffix (the -20 in the order code) is the headline timing spec, but the 1K depth keeps the die small and the pin count low, which matters when you're retrofitting a board that already has the footprint laid out.
Active lifecycle — no end-of-line scramble
For a procurement desk managing a legacy assembly, that's one less fire to put out.
That typically means tubes or trays rather than Tape & Reel. For a rework or small-run production line, bulk is fine — you hand-place or use a tube feeder. If your pick-and-place expects a reel, factor in a hand-load station or ask about alternate packaging options at quote time.