CY7C1049B-17VCT CY7C1049B-17VI CY7C1049B-20VC CY7C1049B-20VCT CY7C1049B-20VI CY7C1049B-20VIT CY7C1049B-20VXC CY7C1049B-20VXCT CY7C1049B-25VC CY7C1049B-25VCT