The S27KS0641DPBHI020 is a 64 Mb (8 MB) HyperRAM self-refresh DRAM for memory expansion using a low-signal-count bus (8-bit DQ, RWDS, CS#, CK/CK#). It supports DDR transfers up to 166 MHz (333 MBps) at 1.8 V VCC/VCCQ (1.7 V to 1.95 V), with wrapped or linear bursts (16 to 128 bytes). Industrial grade operation is -40 to 85°C and deep power-down is specified to 10 µA max at 1.9 V, 85°C in a 24-ball 1.0 mm-pitch FBGA.