CY62146G30-45ZSXA is a 4-Mbit (256K × 16) asynchronous SRAM with embedded ECC for single-bit error correction, qualified to AEC-Q100 Automotive-A (-40°C to +85°C). It supports 45 ns access and operates from 2.2 V to 3.6 V. CE/OE/WE controls with BLE/BHE enable upper/lower byte writes, outputs go HI-Z when deselected, and it supports 1.0 V data retention with 3.5 µA typical standby.