CD74HC4017PWR

The CD74HC4017PWR is a high-speed CMOS decade counter and divider, designed for use in various digital applications. It is part of the Texas Instruments 74HC series, which is known for its high-speed performance and low power consumption. Here’s a detailed description of its features and specifications:

General Features:

• Type: Decade Counter / Divider
• Technology: High-speed CMOS (Complementary Metal-Oxide-Semiconductor)
• Package: Typically available in a 16-pin TSSOP (Thin Shrink Small Outline Package) format, which is compact and suitable for surface mounting.

Functional Description:

• Counting Capability: The CD74HC4017PWR can count from 0 to 10 (decade counting) and has 10 output pins (Q0 to Q9) that represent the count state. Each output goes high sequentially as the counter increments.
• Clock Input: The counter is triggered by a rising edge on the clock input (pin 14). Each clock pulse increments the count by one.
• Reset Functionality: The counter can be reset to zero using the reset input (pin 15). This allows for easy reinitialization of the counting sequence.
• Carry-Out Feature: The CD74HC4017PWR includes a carry-out output (pin 11), which goes high when the counter reaches its maximum count (10). This feature is useful for cascading multiple counters.

Electrical Characteristics:

• Supply Voltage: Operates typically between 2V to 6V, making it versatile for various applications.
• Power Consumption: Low static power consumption, which is a hallmark of CMOS technology.
• Input and Output Voltage Levels: Compatible with standard TTL (Transistor-Transistor Logic) levels, allowing it to interface with other digital logic families.

Performance:

• Speed: The CD74HC4017PWR can operate at high frequencies, making it suitable for applications requiring fast counting.
• Temperature Range: Designed to operate in a wide temperature range, typically from -40°C to +125°C, ensuring reliability in various environments.

Applications:

• Frequency Division: Can be used in frequency division applications where a signal needs to be divided down to a lower frequency.
• Event Counting: Ideal for counting events in applications such as digital clocks, timers, and frequency counters.
• LED Control: Often used in LED chaser circuits, where it can sequentially light up LEDs based on the count.

Pin Configuration:

• The 16 pins of the CD74HC4017PWR are arranged in a specific order, with designated pins for power supply, ground, clock input, reset, and outputs. The pin configuration is crucial for proper circuit design and integration.

Conclusion:

The CD74HC4017PWR from Texas Instruments is a versatile and efficient decade counter that is widely used in digital electronics. Its combination of high-speed operation, low power consumption, and ease of use makes it a popular choice for engineers and hobbyists alike. Whether for simple counting applications or more complex digital systems, the CD74HC4017PWR provides reliable performance and functionality.