54F112DMQB 54F14ADMQB 54F273DMQB 54FCT245DB 54LS74DMQB 芯片

貼插54S20/BCA，54S04/BCA，54F74DMQB，54LS158YB，54S20DMQN，6

贴插MC74HC4050D-MS54F244MBD-CR10-101-JK-54LS245DMQB-B