S80KS2564GACHV040 is a 256 Mb HYPERRAM™ self-refresh DRAM (PSRAM) with a 1.8 V HYPERBUS™ extended-IO (x16) DDR interface. It supports up to 200 MHz clock, up to 800 MBps (6,400 Mbps) throughput, and 35 ns maximum access time. The device operates from 1.7 V to 2.0 V and –40°C to +105°C, and includes Hybrid Sleep, Deep Power Down, configurable bursts, and RWDS-based refresh latency indication.