关注微信公众号查券更方便
UPD4991 D4991AC DIP18全新现货4位并行I/O日历时钟 质优价廉
貼片直插D4SB20L D4991AC D44C12G D45C12G D4SB60L D4SBL80 6
贴片直插D4071BC，D4516BC，D4528BC，D4555BC，D4723GS，D4991AC
