CD4040

Overview

The CD4040 is a 12-stage binary ripple counter/divider, a fundamental building block in digital electronics. It counts input pulses and outputs a binary number representing the count, making it ideal for frequency division, timing delays, and event counting. Its ripple architecture provides a simple, cost-effective solution for dividing clock frequencies by powers of two, from 2 up to 4096.

Key Features

• 12-stage binary ripple counter: Divides input frequency by 2^N (N=1 to 12)
• Wide operating voltage: 3V to 15V, compatible with TTL and CMOS logic
• Low power consumption: Typical 5V operation with minimal current draw
• High noise immunity: CMOS technology ensures reliable operation in noisy environments
• Direct cascading: Multiple CD4040s can be chained for higher division ratios
• Master reset: Asynchronous reset pin to clear the counter at any time

Technical Specifications

• Supply Voltage (VDD): 3V to 15V
• Input Voltage (VIN): 0V to VDD
• Operating Temperature: -55°C to +125°C
• Propagation Delay: 120ns (typical at 5V)
• Output Drive: Capable of driving one TTL load or two LSTTL loads
• Package Options: DIP-16, SOIC-16, TSSOP-16

Applications & Use Cases

• Frequency dividers: Divide clock signals for timers, counters, and synthesizers
• Time delay generation: Create precise delays for sequencing and control
• Event counting: Count pulses from sensors, encoders, or switches
• LED chasers and effects: Drive sequential lighting patterns
• Educational projects: Learn binary counting and digital logic
• Robotics: Implement odometry and encoder feedback

What's Included

• 1x CD4040 IC (DIP-16 package)

Compatibility

• Works with 5V Arduino, Raspberry Pi (with level shifting), and other 3.3V/5V microcontrollers
• Can be used with 74HC series logic for mixed-voltage systems
• Pairs well with 555 timers, crystal oscillators, and other clock sources

MOKWN Recommendation

For Egyptian electronics enthusiasts, the CD4040 is an essential component for any digital project. Its versatility and low cost make it a must-have for hobbyists and professionals alike. Whether you're building a frequency counter, a timing circuit, or an LED display, the CD4040 delivers reliable performance. Stock up and unleash your creativity!