55 ns asynchronous SRAM for industrial buffering
The Cypress CY62148ESL-55ZAXI is a 4Mbit asynchronous SRAM from the MoBL® (More Battery Life) series, organized as 512K x 8 bits with a 55 ns access time.
Access time and bus timing
The 55 ns access time sets the read-cycle window for the memory bus. In a typical 8-bit microcontroller or DSP system with a 20 MHz to 33 MHz bus clock, this part provides enough margin for address decoding and data setup without wait states. The write cycle time matches at 55 ns, so back-to-back read-write operations run at the same speed — useful for data-logging or display-buffer updates where throughput consistency matters.
Package and footprint
Housed in a 32-TFSOP (0.465" body width, 11.80 mm) — the supplier device package is 32-sTSOP. This is a surface-mount, fine-pitch package common on memory modules and embedded controllers. The Tray shipping medium is typical for volume assembly; if you need Tape & Reel for automated pick-and-place, confirm the reel suffix with your order code.