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MC14521BCPG
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MC14521BCPG

Product Overview

  • Category: Integrated Circuit
  • Use: Digital Counter/Divider
  • Characteristics: High-speed operation, low power consumption
  • Package: Ceramic Dual-In-Line Package (PDIP)
  • Essence: Binary Counter/Divider
  • Packaging/Quantity: Tube/25 pieces per tube

Specifications

  • Supply Voltage: 3V to 18V
  • Operating Temperature: -55°C to +125°C
  • Logic Family: CMOS
  • Number of Stages: 24
  • Propagation Delay: 60ns (typical)
  • Input Current: ±1μA (maximum)
  • Output Current: ±8mA (maximum)

Detailed Pin Configuration

The MC14521BCPG has a total of 16 pins. The pin configuration is as follows:

  1. VDD - Positive Power Supply
  2. Q4 - Output 4
  3. Q5 - Output 5
  4. Q6 - Output 6
  5. Q7 - Output 7
  6. GND - Ground
  7. Q0 - Output 0
  8. Q1 - Output 1
  9. Q2 - Output 2
  10. Q3 - Output 3
  11. MR - Master Reset
  12. CP - Clock Pulse Input
  13. CE - Count Enable Input
  14. TC - Terminal Count Output
  15. RB - Ripple Blanking Input
  16. VSS - Negative Power Supply

Functional Features

  • High-speed operation allows for efficient counting and dividing.
  • Low power consumption makes it suitable for battery-powered devices.
  • Master Reset (MR) input allows for resetting the counter to its initial state.
  • Count Enable (CE) input enables or disables the counting function.
  • Terminal Count (TC) output indicates when the counter reaches its maximum value.
  • Ripple Blanking (RB) input allows for blanking the ripple carry output.

Advantages and Disadvantages

Advantages: - High-speed operation enables quick counting and dividing. - Low power consumption prolongs battery life in portable devices. - Compact PDIP package facilitates easy integration into circuit boards.

Disadvantages: - Limited number of stages (24) may not be sufficient for certain applications. - CMOS logic family may be susceptible to noise interference.

Working Principles

The MC14521BCPG is a binary counter/divider integrated circuit. It operates by counting clock pulses and dividing them by powers of 2. The counter can be reset to its initial state using the Master Reset (MR) input. The Count Enable (CE) input enables or disables the counting function. When the counter reaches its maximum value, the Terminal Count (TC) output is activated. The Ripple Blanking (RB) input allows for blanking the ripple carry output.

Detailed Application Field Plans

The MC14521BCPG is commonly used in various digital applications, including:

  1. Frequency Dividers
  2. Time Delay Generators
  3. Event Counters
  4. Clock Synchronization Circuits
  5. Digital Timers

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the MC14521BCPG are:

  1. CD4020BE - 14-stage binary counter/divider
  2. SN74LS93N - 4-bit binary counter/divider
  3. HEF4040BP - 12-stage binary ripple counter/divider
  4. CD4017BE - Decade counter/divider with 10 outputs

These alternative models offer similar functionality and can be used as replacements depending on specific requirements.

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技術ソリューションにおける MC14521BCPG の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of MC14521BCPG in technical solutions:

  1. Q: What is MC14521BCPG? A: MC14521BCPG is a CMOS programmable counter/divider with logic functions, commonly used in digital circuits.

  2. Q: What are the main features of MC14521BCPG? A: The main features include a 24-stage binary counter, three-state outputs, and programmable divide-by-N counter functionality.

  3. Q: How can MC14521BCPG be used in technical solutions? A: It can be used for frequency division, time delay generation, event counting, and other applications that require digital counting or dividing functions.

  4. Q: What is the maximum operating frequency of MC14521BCPG? A: The maximum operating frequency is typically around 6 MHz.

  5. Q: Can MC14521BCPG operate at different voltage levels? A: Yes, it can operate at a wide range of supply voltages, typically from 3V to 18V.

  6. Q: How many inputs does MC14521BCPG have? A: MC14521BCPG has three inputs: Clock (CLK), Reset (RST), and Enable (EN).

  7. Q: What is the function of the Reset (RST) input? A: The Reset input allows you to reset the counter to its initial state when activated.

  8. Q: How can I program the divide-by-N counter functionality? A: The divide ratio can be programmed by connecting specific pins (A, B, C) to VDD or GND to set the desired value.

  9. Q: Can MC14521BCPG drive external loads directly? A: No, it requires external buffering to drive heavy loads or to interface with other logic circuits.

  10. Q: Are there any specific precautions to consider when using MC14521BCPG? A: It is important to ensure proper power supply decoupling and avoid exceeding the maximum ratings specified in the datasheet to prevent damage to the device.

Please note that these answers are general and may vary depending on the specific application and requirements.