CD4026BEE4 datasheet by Texas Instruments

CD4026BEE4 Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the CD4026BEE4 can handle?
  The CD4026BEE4 can handle clock frequencies up to 10 MHz.
• How do I ensure that the CD4026BEE4 is properly reset after power-on?
  To ensure proper reset, connect the RESET pin to VCC through a 1 kΩ resistor and a 10 nF capacitor to ground. This will ensure that the chip is properly reset after power-on.
• What is the purpose of the Q7 output in the CD4026BEE4?
  The Q7 output is an overflow output that goes high when the counter overflows from 11111111 to 00000000. It can be used to cascade multiple counters or to generate an interrupt signal.
• Can I use the CD4026BEE4 as a divide-by-N counter?
  Yes, the CD4026BEE4 can be used as a divide-by-N counter by connecting the Q output of the desired stage to the CLK input of the next stage. For example, to divide the clock frequency by 16, connect Q4 to CLK.
• How do I handle the asynchronous reset input (RESET) in the CD4026BEE4?
  The RESET input is asynchronous, meaning it can be asserted at any time, even during clock transitions. To ensure proper operation, assert the RESET input for at least one clock cycle to ensure that the counter is properly reset.