Home / Standards / GB/T 14027.7-1992 GB/T 14027.7-1992 Abolished Series and products of communication circuits for semiconductor integrated circuits--Products of digital switching system interface circuits 半导体集成电路通信电路系列和品种 数字交换系统接口电路系列品种 Standard Type GBT ICS 31.200 CCS L56 Status 废止 Issue Date 1992-12-17 Implementation 1993-08-01 Responsible Dept 工业和信息化部（电子） Drafting Unit N/A