Overview

The CD4020BMS (14-stage), CD4024BMS (7-stage), and CD4040BMS (12-stage) 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 CD4020BMS, CD4024BMS and CD4040BMS are supplied in these 14-lead outline packages: Braze Seal DIP H4W, H4Q and H4X; Frit Seal DIP H1F and H1B; and Ceramic Flatpack H6W and H3W.

CD4024BMS Functional Diagram
CD4024BMS Functional Diagram
  • High-voltage types (20V rating)
  • Medium-speed operation
  • Fully static operation
  • Buffered inputs and outputs
  • 100% tested for quiescent current at 20V
  • Standardized symmetrical output characteristics
  • Common reset
  • 5V, 10V and 15V parametric ratings
  • Maximum input current of 1µa at 18V over full package temperature range:
    • 100nA at 18V and 25 °C
  • Noise margin (over full package temperature range):
    • 1V at VDD = 5V
    • 2V at VDD = 10V
    • 2.5V at VDD = 15V
  • 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

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    MOQ
    DLA SMD
    Buy / Sample
    Part Number
    CD4024BDMSR
    circleObsolete
    memory
    view_in_ar
    		SBDIP Tube 25 5962R9662803VCC
    CD4024BKMSR
    circleObsolete
    memory
    view_in_ar
    		CFP Tray 25 5962R9662803VXC
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