Active production — still a current BOM line
The CY62136FV30LL-45ZSXI: This is a current-production part, not a last-time-buy or obsolete line.
45 ns access — the bus timing anchor
At 45 ns access time, this 2 Mbit asynchronous SRAM meets the read-cycle timing for 16-bit microcontrollers and DSPs running at bus speeds up to roughly 22 MHz. The 45 ns write-cycle time (word, page) mirrors the read access, so the same timing budget applies to both directions — no asymmetric margin to manage. Organised as 128K x 16, the parallel interface gives a full 16-bit data word per access — no byte-lane stitching needed for a 16-bit bus.
44-TSOP II — footprint and rework reality
Housed in a 44-TSOP II (0.400-inch body, 10.16 mm width), this is a surface-mount package with gull-wing leads on 0.80 mm pitch. The TSOP II footprint is standard across multiple SRAM suppliers — a rework station with a hot-air nozzle sized for the body width handles removal and replacement without bottom-side preheat, provided the board is baked per J-STD-033 if moisture-sensitive. The volatile memory type means data is lost on power-down — a backup battery or supercap on the supply rail holds the array during short power interrupts.
Sourcing posture and supply
As an active Cypress (now Infineon) part, the CY62136FV30LL-45ZSXI is sourced through authorized distribution channels.