随着大规模集成技术的迅速发展,许多整机线路被集成在一块硅衬底上,使整机线路非常简单。这种电路,往往仅输出驱动显示器的笔划信号,而无BCD信号,如数字电表用的单片式A/D转换器、电子表电路等。为了扩展这些大规模集成电路的功能,如将数据打印出来,利用其数据进行数控等,就必须将笔划信号译成BCD码,CH294反译码器就是根 With the rapid development of large-scale integration technology, many complete lines are integrated in a silicon substrate, making the whole circuit very simple. This type of circuit often outputs only stroke signals for driving the display without BCD signals such as monolithic A / D converters for digital electric meters, electronic watch circuits, and the like. In order to expand the functionality of these large scale integrated circuits, such as printing data and using its data for numerical control, etc., it is necessary to translate the stroke signal into BCD codes. The CH294 decoder is the root