CD74HC4017NSR

Product Overview

Category: Integrated Circuit (IC)
Use: Decade counter/divider
Characteristics: High-speed operation, low power consumption
Package: SOIC (Small Outline Integrated Circuit)
Essence: Sequential logic circuit
Packaging/Quantity: Tape and reel, 2500 pieces per reel

Specifications

Supply Voltage Range: 2V to 6V
Maximum Clock Frequency: 25 MHz
Number of Stages: 10
Output Current: ±6 mA
Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CD74HC4017NSR has a total of 16 pins. The pin configuration is as follows:

Clock (CLK)
Enable (EN)
Reset (RST)
Output 5 (Q5)
Output 1 (Q1)
Output 0 (Q0)
Output 2 (Q2)
Output 6 (Q6)
Output 7 (Q7)
Output 3 (Q3)
Output 8 (Q8)
Output 9 (Q9)
Carry Out (CO)
Ground (GND)
VCC
Serial Data Input (SER)

Functional Features

Decade counter/divider with 10 outputs
Can be cascaded for larger counting applications
Outputs can drive LEDs or other low-power devices directly
Built-in carry-out (CO) signal for cascading multiple counters

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient counting - Low power consumption makes it suitable for battery-powered applications - Compact SOIC package saves board space - Easy to use and integrate into digital circuits

Disadvantages: - Limited output current may require additional driver circuitry for high-power applications - Limited voltage range (2V to 6V) may not be suitable for all applications

Working Principles

The CD74HC4017NSR is a decade counter/divider that operates by sequentially activating its outputs in response to clock pulses. The clock input (CLK) triggers the counter to advance to the next stage, and the outputs (Q0-Q9) represent the count value. The counter can be reset to its initial state using the reset input (RST). The enable input (EN) allows for the control of counting operations.

Detailed Application Field Plans

The CD74HC4017NSR can be used in various applications, including:

Digital frequency dividers
Sequential LED lighting effects
Event sequencing in industrial automation
Audio/visual equipment control
Counter-based control systems

Detailed and Complete Alternative Models

Some alternative models to the CD74HC4017NSR are:

CD4017BE: DIP package, similar functionality
CD4022B: Octal counter/divider with 8 outputs
CD4510B: BCD up/down counter with presettable counter and ripple clock

These alternative models offer similar functionality but may have different package options or additional features.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням CD74HC4017NSR у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of CD74HC4017NSR:

Q: What is CD74HC4017NSR? A: CD74HC4017NSR is a 5-stage Johnson decade counter with 10 decoded outputs. It is commonly used in digital electronics for applications such as sequencing, frequency division, and control signal generation.
Q: What is the maximum clock frequency supported by CD74HC4017NSR? A: The maximum clock frequency supported by CD74HC4017NSR is typically around 25 MHz.
Q: How many output pins does CD74HC4017NSR have? A: CD74HC4017NSR has 10 output pins, labeled Q0 to Q9, which can be used to drive external devices or circuits.
Q: Can CD74HC4017NSR be cascaded to increase the number of stages? A: Yes, CD74HC4017NSR can be cascaded by connecting the carry-out (CO) pin of one chip to the clock input (CLK) of the next chip, allowing for expansion of the number of stages.
Q: What is the purpose of the reset (MR) pin on CD74HC4017NSR? A: The reset (MR) pin is used to reset the counter to its initial state when pulled low. This pin is useful for synchronization or restarting the counting sequence.
Q: What is the power supply voltage range for CD74HC4017NSR? A: CD74HC4017NSR operates with a power supply voltage range of 2V to 6V, making it compatible with both TTL and CMOS logic levels.
Q: Can CD74HC4017NSR be used in both synchronous and asynchronous applications? A: Yes, CD74HC4017NSR can be used in both synchronous and asynchronous applications, depending on the clock signal provided.
Q: What is the typical output current capability of CD74HC4017NSR? A: The typical output current capability of CD74HC4017NSR is around 5 mA, which is sufficient for driving most standard logic inputs.
Q: Can CD74HC4017NSR be used to drive LEDs directly? A: Yes, CD74HC4017NSR can be used to drive LEDs directly by connecting the output pins to the LED anodes through current-limiting resistors.
Q: Are there any specific precautions to consider when using CD74HC4017NSR? A: It is important to ensure that the power supply voltage does not exceed the specified range, and that proper decoupling capacitors are used near the chip to minimize noise and voltage spikes. Additionally, care should be taken to avoid exceeding the maximum output current ratings.