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CH7226B集成电路是上海无线电十四厂生产的一种CMOS大规模器件。它全仿美国INTERSIL公司的ICM7226B集成电路,可以互换使用。由于它具有功能强、测试速度快、精度高、体积小等特点,非常适于制作成数字式通用计数器。下面对它作一介绍。一、概述CH7226B是含有驱动LED电路在内的全集成通用计数器。内部包括高频振荡器,十进制时基计数器,8位十进制计数器和锁存器,参考计数器,7段译码器,BCD数据多路器和直接驱动大尺寸LED显示器的段、位驱动器。
CH7226B integrated circuit is a large-scale CMOS devices manufactured by Shanghai Radio 14 Factory. It is all the United States INTERSIL ICM7226B integrated circuits, can be used interchangeably. Because of its powerful, fast test speed, high precision, small size and other characteristics, is very suitable for making a digital universal counter. Here’s an introduction to it. First, an overview CH7226B is a fully integrated universal counter with LED driver circuit. Internal, including high-frequency oscillator, decimal time base counter, 8-bit decimal counter and latch, reference counter, 7 section decoder, BCD data multiplexer and directly drive large-size LED display segments, bit drives.