MM74HC4020 Datasheet | National Semiconductor

MM54HC4020 MM74HC4020 14-Stage Binary Counter MM54HC4040 MM74HC4040 12-Stage Binary Counter December 1988 MM54HC4020 MM74HC4020 14-Stage Binary Counter MM54HC4040 MM74HC4040 12-Stage Binary Counter General Description The MM54HC4020 MM74HC4020 MM54HC4040 MM74HC4040 are high speed binary ripple carry counters These counters are implemented utilizing advanced silicongate CMOS technology to achieve speed performance similar to LS-TTL logic while retaining the low power and high noise immunity of CMOS The ’HC4020 is a 14 stage counter and the ’HC4040 is a 12stage counter Both devices are incremented on the falling edge (negative transition) of the input clock and all their outputs are reset...