S27KL0641DABHV020 is a 64 Mb (8 MB) HyperRAM self-refresh DRAM for MCU/SoC external memory expansion. It uses a low-signal-count HyperBus interface with an 8-bit DDR data bus, CS#, CK, and RWDS, supporting sequential bursts and wrapped lengths up to 128 bytes. VCC/VCCQ operate at 1.7–1.95 V or 2.7–3.6 V, with up to 100 MHz clock (200 MBps). 24-ball FBGA; -40°C to 105°C (AEC-Q100 Grade 2).