求两个软驱上步进电机驱动IC的数据表 [复制链接]

如题，小弟有两个软驱，最近手痒拆出来研究研究，发现其中控制磁头移动的步进电机挺好玩，虽然用三极管搭个h桥可以控制那两个步进电机，但是它原来的控制ic挺简洁。其中一个软驱步进电机控制电机的ic型号为：3479-00c，另一个为848，这两个ic只有标号，不知道有哪位dx玩过类似的芯片或有这两块ic的数据表呢？

a3967slb   以前我用过这个

ls的有没有个数据表看看啊？那个848是表贴总共十根脚的，我找了好久都找不到他的数据表！

good sharing!
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ls的？刷贴子？