ECS-2100A-500 ECS-2100A-6.0MHz ECS-2100A-6.144MHz ECS-2100A-64.0MHZ ECS-2100A-640 ECS-2100A-66.666MHz ECS-2100A-666 ECS-2100A-7.3728MHz ECS-2100A-8.0MHZ ECS-2100A-8.192MHZ