Memory organization and bus timing
The 71V2546S100PFG is a 4.5 Mbit synchronous SRAM organized as 128K words by 36 bits, using a Zero Bus Turnaround (ZBT) architecture that eliminates dead cycles between read and write operations on the same bus. With a 5 ns access time and 100 MHz clock frequency, the part sustains a 100 MT/s data rate on a 36-bit parallel interface — the access time sets the read-to-data-valid window, while the clock rate governs the peak throughput.
Package and board-fit
The 100-TQFP (14x14) footprint is common across many Renesas synchronous SRAMs, easing layout reuse. Packaged in Bulk — not tape-and-reel — so it arrives in anti-static tubes or trays; plan for manual or tube-fed pick-and-place rather than reel-fed assembly.