CD4020B, CD4024B, and CD4040B are ripple-carry binary counters. All counter stages are master-slave flip-flops. The state of a counter advances one count on the negative transition of each input pulse; a high level on the RESET line resets the counter to its all zeros state. Schmitt trigger action on the input-pulse line permits unlimited rise and fall times. All inputs and outputs are buffered.
●The CD4020B and CD4040B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (NSR suffix), and 16-lead thin shrink small-outline packages (PW and PWR suffixes). The CD4040B type also is supplied in 16-lead small-outline packages (M and M96 suffixes).
●The CD4024B types are supplied in 14-lead hermetic dual-in-line ceramic packages (F3A suffix), 14-lead dual-in-line plastic packages (E suffix), 14-lead small-outline packages (M, MT, M96, and NSR suffixes), and 14-lead thin shrink small-outline packages (PW and PWR suffixes).
● Medium-speed operation
● Fully static operation
● Buffered inputs and outputs
● 100% tested for quiescent current at 20 V
● Standardized, symmetrical output characteristics
● Fully static operation
● Common reset
● 5-V, 10-V, and 15-V parametric ratings
● Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
● Noise margin (over full package-temperature range):
● 1 V at VDD = 5 V
● 2 V at VDD = 10 V
● 2.5 V at VDD = 15 V
● Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of "B" Series CMOS Devices"
● Applications:
● Control counters
● Timers
● Frequency dividers
● Time-delay circuits
●CD4020B - 14 Stage
●CD4024B - 7 Stage
●CD4040B - 12 Stage
