HYB25D256[400/800/160]B[T/C](L) 256-Mbit Double Da.
Infineon
HYB25D256400BC - 256-Mbit Double Data Rate SDRAM
HYB25D256[400/800/160]B[T/C](L) 256-Mbit Double Data Rate SDRAM, Die Rev. B Data Sheet Jan. 2003, V1.1 Features CAS Latency and Frequency CAS Laten.