CD4517BE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Counter/Divider
• Characteristics: High-speed operation, low power consumption
• Package: DIP (Dual In-line Package)
• Essence: Binary counter with decoded outputs
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Supply Voltage Range: 3V to 18V
• Operating Temperature Range: -55°C to +125°C
• Maximum Clock Frequency: 25 MHz
• Number of Stages: 4
• Output Type: Decoded BCD (Binary-Coded Decimal)

Detailed Pin Configuration

The CD4517BE IC has a total of 16 pins. The pin configuration is as follows:

1. Clock Enable (CE)
2. Clock Input (CP)
3. Carry Out (CO)
4. Data Input A (DA)
5. Data Input B (DB)
6. Data Input C (DC)
7. Data Input D (DD)
8. Ground (GND)
9. Ripple Blanking Input (RB)
10. Reset (RST)
11. Output QD
12. Output QC
13. Output QB
14. Output QA
15. VDD (Positive Power Supply)
16. Carry-In (CI)

Functional Features

• Up/Down Counting: The CD4517BE can count up or down based on the input signals.
• Decoded Outputs: The outputs QA, QB, QC, and QD are decoded binary-coded decimal (BCD) outputs.
• Carry Function: The carry-out (CO) and carry-in (CI) pins allow cascading multiple CD4517BE ICs for larger counting applications.
• Ripple Blanking: The ripple blanking input (RB) enables/disable the ripple-blanking output.

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick counting applications. - Low power consumption makes it suitable for battery-powered devices. - Decoded outputs simplify interfacing with other components.

Disadvantages: - Limited number of stages (4) may not be sufficient for complex counting requirements. - Requires external components for clock generation and input signals.

Working Principles

The CD4517BE is a synchronous counter/divider IC that operates based on the clock input signal. It counts up or down depending on the input signals applied to the data inputs (DA, DB, DC, DD). The decoded BCD outputs (QA, QB, QC, QD) represent the current count value. The carry-out (CO) and carry-in (CI) pins allow cascading multiple CD4517BE ICs for larger counting applications.

Detailed Application Field Plans

The CD4517BE IC finds applications in various fields, including:

1. Digital Counters: Used in electronic devices for counting events, pulses, or time intervals.
2. Frequency Dividers: Divides the input frequency by a specific factor to obtain a lower frequency output.
3. Industrial Automation: Used in control systems for counting and timing operations.
4. Communication Systems: Used for frequency division and synchronization purposes.
5. Automotive Electronics: Employed in vehicle instrumentation and control circuits.

Detailed and Complete Alternative Models

Some alternative models to the CD4517BE IC are:

1. CD4518BE: Similar to CD4517BE but with dual 4-bit binary counters.
2. CD4029BE: 4-bit presettable up/down counter with parallel load capability.
3. CD4040BE: 12-stage binary ripple counter with an integrated oscillator.

These alternative models offer similar functionalities and can be used as substitutes depending on specific requirements.

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