CD40257BMT

Description CD4020BMS, CD4024BMS, and CD4040BMS 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.
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 Pack age-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