500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/74/1340261233989848.gif');}" onmousewheel="return imgzoom(this);">一个SOP-8 IC,6脚输入矩形波,7脚反相输出矩形波,不知道它的型号.
一个SOP-8 IC,6脚输入矩形波,7脚反相输出矩形波,不知道它的型号.我怀疑是CD或74系列的IC,但无从找起,渴求高手们多多指教!
500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/74/1340261233989848.gif');}" onmousewheel="return imgzoom(this);">
500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/74/1340261233989848.gif');}" onmousewheel="return imgzoom(this);">