BUY HM62256BLPI-10 https://www.utsource.net/itm/p/430651.html
x8 SRAM
Description: The HM62256BLPI-10 is a high-speed CMOS static RAM organized as 262,144 words by 8 bits. Features: Low power consumption High speed access time: 10ns Single 5V power supply TTL compatible inputs and outputs Low standby current Automatic power-down when deselected Automatic power-up when selected Data retention voltage: 2.0V Refresh cycle: 2K Applications: The HM62256BLPI-10 is suitable for applications such as cache memory, video RAM, and other memory applications that require high speed and low power consumption. (For reference only)