CD4521BE

Product Overview

Category

CD4521BE belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a programmable 24-stage frequency divider and oscillator.

Characteristics

• CD4521BE is a CMOS-based IC.
• It operates at a wide voltage range, typically between 3V and 18V.
• The device has a low power consumption, making it suitable for battery-powered applications.
• It offers high noise immunity and stable performance.
• CD4521BE is known for its reliability and durability.

Package

The CD4521BE IC comes in a standard dual in-line package (DIP) with 16 pins.

Essence

The essence of CD4521BE lies in its ability to divide frequencies and generate precise timing signals.

Packaging/Quantity

CD4521BE is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 3V to 18V
• Logic Family: CMOS
• Number of Pins: 16
• Operating Temperature Range: -55°C to +125°C
• Maximum Clock Frequency: 2MHz

Detailed Pin Configuration

The CD4521BE IC has 16 pins, each serving a specific function:

1. VDD: Positive power supply pin
2. GND: Ground pin
3. CLOCK: Input pin for clock signal
4. RESET: Reset input pin
5. DATA: Data input pin
6. Q0-Q7: Output pins for divided frequency signals
7. Q8-Q15: Additional output pins for divided frequency signals

Functional Features

• CD4521BE can divide an input frequency by any value from 1 to 224.
• It provides a programmable division ratio through external connections.
• The device offers synchronous or asynchronous operation modes.
• CD4521BE has a built-in oscillator for generating clock signals.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various systems.
• Low power consumption makes it suitable for battery-powered devices.
• High noise immunity ensures reliable performance in noisy environments.
• Precise timing signals can be generated using the programmable division feature.

Disadvantages

• Limited maximum clock frequency of 2MHz may not meet the requirements of high-speed applications.
• The DIP package may not be suitable for space-constrained designs.

Working Principles

CD4521BE operates by dividing an input clock signal by a programmable division ratio. The division ratio is set using external connections to determine the output frequency. The device utilizes CMOS technology, ensuring low power consumption and high noise immunity.

Detailed Application Field Plans

CD4521BE finds applications in various fields, including:

1. Timing circuits: It is used to generate precise timing signals in digital systems.
2. Frequency dividers: CD4521BE divides input frequencies for specific applications, such as clock generation.
3. Oscillators: The built-in oscillator feature allows CD4521BE to function as a standalone oscillator.
4. Communication systems: It can be utilized in communication systems for frequency division and synchronization purposes.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to CD4521BE are:

1. CD4018BE: 8-stage programmable divider IC.
2. CD4024BE: 7-stage binary counter/divider IC.
3. CD4040BE: 12-stage binary counter/divider IC.
4. CD4060BE: 14-stage binary counter/divider IC.

These alternative models provide different division ratios and features, allowing users to choose the most suitable option for their specific application.

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