<https://cn.element14.com/maxim-integrated-products/icm7555isa/ic-cmos-timer-smd-7555-soic8/dp/2519395>
<http://schema.org/category>
"定时器, 振荡器与脉冲发生器"
<https://cn.element14.com/maxim-integrated-products/icm7555isa/-cmos-smd-7555-soic8/dp/2519395>