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CD4020BMS - 14 Stage
CD4024BMS - 7 Stage
CD4040BMS - 12 Stage

CD4020BMS, CD4024BMS, and CD4040BMS are ripplecarry 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 the CD4040BMS is supplied in these 14 lead outline packages:

CD4020B CD4024B CD4040B
Braze Seal DIP H4W H4Q H4X
Frit Seal DIP H1F H1B H1F
Ceramic Flatpack H6W H3W H6W

Key Features

• 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 25oC
• 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