CD4020BCN

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The CD4020BCN is an integrated logic circuit with sixteen stages of linear ripple- through binary counter/divider and twenty stages of decoded output. It is widely used in various applications such as computer, printer, television, and communication equipment. The CD4020BCN uses CMOS technology and is a low-power device with a maximum quiescent current of only 8 mA. Its low power consumption makes it an ideal choice for applications such as power-saving or battery-powered devices.

The CD4020BCN can be used in both counter mode and divider mode. In counter mode, it can count from 0 to 16 – one increment for each input pulse. In divider mode, the input clock frequency is divided by a factor of 1 to 2¹⁶. Depending on the number of stages chosen and the counter mode, this IC can be used for frequency division and counting functions.

The CD4020BCN has an internal output register latch which stores the output data between clock pulses. This allows continuous counting of up to 16 pulses without resetting the output. The device also has twelve active LOW outputs (Q1 – Q12) and eight passive HIGH outputs (Q13 – Q20). The active outputs can be used for logic applications such as signal decoding, multiplexing, data comparison, and so on. The passive outputs can be used for peripheral control and for applications such as time delay counters and time-out detection.

The CD4020BCN can be operated at a wide range of frequencies from 0.01 Hz to 1 MHz which makes it suitable for both low-speed and high-speed applications. At low frequencies, the counter can count up to 16 pulses, while at higher frequencies the counter can operate at frequencies up to 1 MHz. The chip has an input clock having a positive pulse, allowing it to synchronize the output to any source without any additional logic. The device also has a synchronous reset input and an asynchronous reset input which can be used to reset the device at any time.

The CD4020BCN is a versatile and cost-effective solution for applications requiring complex counting and frequency division. It can be used in various applications such as process control, data acquisition systems, medical equipment, automotive, and consumer appliances. Furthermore, its low-power operation, compact size, and ease of use make it an ideal choice for embedded applications.

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