CD4017BPW

Timing:	Synchronous
Base Part Number:	4017
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 125°C
Voltage - Supply:	3V ~ 18V
Trigger Type:	Positive Edge
Count Rate:	5.5MHz
Series:	4000B
Reset:	Asynchronous
Number of Bits per Element:	10
Number of Elements:	1
Direction:	Up
Logic Type:	Counter, Decade
Part Status:	Active
Packaging:	Tube

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CD4017BPW Application Field and Working Principle

CD4017BPW is an integrated circuit used for logic application-based counters, dividers, and shift registers. This chip is a 16-pin integrated circuit (IC) that runs using Complementary Metal–Oxide–Semiconductor (CMOS) technology. It is commonly used in applications such as frequency dividers, pulse generators and modulo counter designs.

Application Fields

CD4017BPW can be used in several types of logic applications:

1. Counters

CD4017BPW is able to count each clock pulse transition and display the output in the form of numbers (sequence of "0"s and "1"s). It is designed to handle up to 10 transitions between two clock pulse thresholds. The use of this chip in the form of a separate counger or as parts of a microcontroller circuit can be used in projects such as step counters, simple binary or decimal counters, or LED sequencing displays.

2. Dividers

CD4017BPW can divide the frequency of an input signal to generate a lower frequency output signal. This chip can be used to convert a single frequency signal to a range of frequencies in a division-by-n type of fashion. It is frequently used in projects that require an oscillator, such as an audio frequency (AF) generator. This chip can be used to generate AF or radio-frequency (RF) signals.

3. Shift registers

CD4017BPW can be used to store bits of data. It is sometimes used as a cascaded shift register to transfer data bit by bit into successive stages. This chip is also known to be used in beer bottle lights to illuminate a series of LEDs when connected to an alternating current (AC) source of electricity.

Working Principle

The CD4017BPW consists of two basic parts, the oscillator and the divider. The oscillator generates a constant frequency signal, which is then divided by the divider to create a lower frequency output signal. The CD4017BPW oscillator runs off of a voltage source, and its frequency is determined by the values of two resistors and a capacitor. When an input voltage is applied to this circuit, the capacitor begins to charge and discharge, creating a series of pulses. The frequency of the generated signal is determined by the time it takes for the capacitor to charge and discharge.The output signal from the oscillator is then sent to the divider, which divides the signal\'s frequency in a division-by-n fashion. The divider consists of one preset frequency input, four logic inputs, and one output. The logic inputs determine the number of divisions to be performed on the signal, while the preset frequency input is used to set the divisions. The signal remains high until a logic trigger input is received and the divider begins the division process. After each division the output is updated, thus providing the desired output signal. In summary, CD4017BPW is an integrated circuit used for logic application-based counters, dividers, and shift registers. This chip is commonly used in a variety of applications and is ideal for frequency division, pulse generation, and count/shift register operations. It consists of an oscillator for generating a constant frequency signal and a divider for performing division in a division-by-n fashion.

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