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 1a 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”

Description
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:
Pinouts
CD4020BMS
TOP VIEW
CD4024BMS
TOP VIEW
CD4040BMS
TOP VIEW
CD4020BMS - 14 Stage
CD4024BMS - 7 Stage
CD4040BMS - 12 Stage
CD4020B CD4024B CD4040B
Braze Seal DIP H4W H4Q H4X
Frit Seal DIP H1F H1B H1F
Ceramic Flatpack H6W H3W H6W