CY62146G30-45ZSXI is a 4-Mbit (256K × 16) asynchronous CMOS SRAM with embedded ECC for single-bit error correction. The -45 speed grade supports 45 ns access at 2.2 V–3.6 V over the industrial range (-40°C to +85°C). It is offered in a 44-pin TSOP II package (ZS) with single chip enable, supports byte writes via BLE/BHE, and reduces standby power with ISB2 of 3.5 µA typ (8.7 µA max).