128Kx8 SRAM — what the 85 ns access time means for the bus
The TMS62828L-85NW is a standard SRAM from Texas Instruments organized as 128Kx8 — 1 Mbit of static RAM in a byte-wide configuration. The 85 ns access time sets the read-cycle window for the bus controller: at 85 ns, the part can keep pace with slower 8-bit microcontrollers and ASICs without inserting wait states, but a 16 MHz or faster CPU will need at least one wait cycle to meet the data-valid window. This is the density tier for microcontroller data buffers, small frame stores, or boot-shadow memory in embedded systems where a few hundred kilobytes of scratchpad RAM is enough.
Active lifecycle — no near-term EOL risk
For sustainment programs — medical equipment, industrial controllers, defence systems that lock a BOM for a decade — this means the part is still in regular production and not on a last-time-buy schedule. No NRND or phase-out notice is on file. The Active status also means the manufacturer continues to support the part with datasheets, application notes, and PCN notifications, which simplifies qualification for new designs.
Bulk packaging — handling note for the rework bench
For a rework lab or low-volume production line, Bulk is convenient: no feeder setup, no reel changeover. For high-volume pick-and-place, you will need to transfer the parts to a tape carrier or order a tape-and-reel variant if one exists.