CD4521BNSR

Product Overview

Category

CD4521BNSR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for various applications such as timing, counting, and controlling.

Characteristics

• CD4521BNSR is a 24-stage frequency divider and oscillator.
• It operates at a wide range of supply voltages, typically between 3V and 18V.
• The IC has a low power consumption, making it suitable for battery-powered devices.
• It offers high noise immunity and excellent stability.

Package

CD4521BNSR is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of CD4521BNSR lies in its ability to divide frequencies and generate precise timing signals.

Packaging/Quantity

This IC is typically sold in reels or tubes containing a specific quantity, usually around 2500 units per reel.

Specifications

• Supply Voltage Range: 3V to 18V
• Operating Temperature Range: -55°C to +125°C
• Input Voltage High Level (VIH): 2V (minimum)
• Input Voltage Low Level (VIL): 0.8V (maximum)
• Output Current: ±10mA (maximum)

Detailed Pin Configuration

The CD4521BNSR IC has 16 pins, each serving a specific function:

1. VDD - Positive power supply
2. Q4 - Output stage 4
3. Q5 - Output stage 5
4. Q6 - Output stage 6
5. Q7 - Output stage 7
6. Q8 - Output stage 8
7. Q9 - Output stage 9
8. Q10 - Output stage 10
9. Q11 - Output stage 11
10. Q12 - Output stage 12
11. Q13 - Output stage 13
12. Q14 - Output stage 14
13. Q15 - Output stage 15
14. Q16 - Output stage 16
15. GND - Ground
16. CLK - Clock input

Functional Features

• CD4521BNSR can divide the input frequency by 24 stages.
• It has an internal oscillator that can be controlled by an external clock signal.
• The IC provides a reset function to restart the counting process.
• It offers synchronous parallel loading of the initial count.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows for versatile applications.
• Low power consumption makes it suitable for battery-powered devices.
• High noise immunity ensures reliable operation in noisy environments.
• Precise timing signals enable accurate control in digital circuits.

Disadvantages

• Limited frequency division capability compared to some other ICs.
• Requires an external clock signal for operation.

Working Principles

CD4521BNSR works based on the principle of frequency division. It takes an input clock signal and divides it by 24 stages, generating output signals at each stage. The IC's internal oscillator can be used as the clock source or an external clock can be provided. The outputs represent different divisions of the input frequency, allowing for precise timing control in various applications.

Detailed Application Field Plans

CD4521BNSR finds application in various fields, including: 1. Timing circuits in digital watches and clocks. 2. Frequency division in electronic counters. 3. Control systems requiring precise timing signals. 4. Sequential logic circuits. 5. Industrial automation systems.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to CD4521BNSR are: 1. CD4017BE: Decade counter/divider with 10 outputs. 2. CD4024BE: 7-stage ripple counter/divider. 3. CD4040BE: 12-stage binary counter/divider.

These alternative models can be used depending on specific requirements and design considerations.

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