ZHCSQW7D February 1998 – August 2022 CD54HC4020 , CD54HCT4020 , CD74HC4020 , CD74HCT4020
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
The ’HC4020 and ’HCT4020 are 14-stage ripple-carry binary counters. All counter stages are controller flipflops. The state of the stage advances one count on the negative clock transition of each input pulse; a high voltage level on the CLR line resets all counters to their zero state. All inputs and outputs are buffered.