2MX36 SRAM, 0.45 ns — what it means on the bus
The R1Q3A7236ABB-33IA0 is a standard SRAM organized as 2MX36 with a 0.45 ns access time. That is fine for prototype runs, rework, or small-batch production where a pick-and-place feeder setup is not justified. For high-volume lines, verify your CM can handle bulk tubes or request a reeled variant if one exists in this density grade.
Lifecycle and compliance check
That means you can qualify it into a new BOM without an immediate last-time-buy risk. The RoHS non-compliant flag is the real constraint: this part is not lead-free. If your assembly line is RoHS-only, you will need a waiver or a separate process flow. For defence, aerospace, or high-rel applications where leaded solder is still standard, this is not an issue. No official second-source or pin-compatible alternate is listed in the available records, so dual-sourcing will require qualifying a functionally equivalent SRAM from another vendor — expect to validate timing, package footprint, and power-up sequencing.