CD4020 is 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 CD4020 type is 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). 

Features:-

• 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 V_DD = 5 V
  2 V at V_DD = 10 V
  2.5 V at V_DD = 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

Specifications:-

Related Document

 CD4020 IC Datasheet