S27KS0642GABHA023 is a 64 Mb HYPERRAM™ self-refresh DRAM (PSRAM) for HYPERBUS™ memory expansion in embedded systems. It supports DDR transfers up to 200 MHz (400 MBps) on an 8-bit DQ bus with CS#, RWDS, and RESET#, plus optional differential clock and optional DDR center-aligned read strobe (DCARS). Operates from 1.8 V VCC (1.7 V to 2.0 V) and is supplied in a 24-ball FBGA; automotive grade A temperature is -40°C to +85°C.