4000/14000/40000 SERIES, ASYN NEGATIVE EDGE TRIGGERED 7-bit UP binary counter, PDSO14 From old datasheet system ORDERING INFORMATION 7-Stage Ripple counter 7级纹波计数器
From old datasheet system SYNCHRONOUS PRESETTABLE 4-bit counter SYNCRONOUS PRESETTABLE 4-bit binary counter, WITH ASYNCHRONOUS CLEAR SYNCRONOUS PRESETTABLE 4-bit binary counter, WITH ASYNCHRONOUS CLEAR