特价型号：1117-3.3/5.0/1.8/ADJ
5N60/7N60/A3822/D3802AF/D8211
优势产品型号：
CD4013/CD4066/CD4094/CD4511/CD4541
CT1642/DS1302Z/DS1302ZN/
JRC4558/LM258/LM358/LM2904/LM339
LM2575/2576/2796
HT1621 /FT232BL
NE555/NE5532/74HC00/74HC164
MAX485/487/1487/1485/MAX232/3232全系列
