CD74HCT4520MG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Counter
• Characteristics: High-speed, CMOS logic, dual 4-bit binary counter
• Package: SOIC-16
• Essence: Counting and dividing binary signals
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 25 MHz
• Number of Counters: 2
• Number of Bits per Counter: 4
• Output Type: Standard

Detailed Pin Configuration

The CD74HCT4520MG4 has a total of 16 pins. The pin configuration is as follows:

1. CLK1: Clock input for Counter 1
2. RST1: Reset input for Counter 1
3. QD1: Output QD for Counter 1
4. QC1: Output QC for Counter 1
5. QB1: Output QB for Counter 1
6. QA1: Output QA for Counter 1
7. VCC: Positive power supply
8. GND: Ground
9. QA2: Output QA for Counter 2
10. QB2: Output QB for Counter 2
11. QC2: Output QC for Counter 2
12. QD2: Output QD for Counter 2
13. RST2: Reset input for Counter 2
14. CLK2: Clock input for Counter 2
15. NC: No connection
16. NC: No connection

Functional Features

• Dual 4-bit binary counters with individual clock inputs and reset inputs.
• Can be cascaded to create larger counters.
• High-speed operation with CMOS logic.
• Outputs can drive standard TTL or CMOS loads.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient counting of binary signals. - CMOS logic ensures low power consumption. - Dual counters provide flexibility in various applications. - Can be easily cascaded to create larger counters.

Disadvantages: - Limited number of bits per counter (4 bits). - Requires external clock and reset signals for proper operation. - Not suitable for applications requiring higher bit counts.

Working Principles

The CD74HCT4520MG4 is a dual 4-bit binary counter that operates based on the clock input signals. Each counter can count up to 16 different states, from 0000 to 1111. The counters can be reset to their initial state using the reset inputs. The outputs of the counters represent the current count value in binary format.

Detailed Application Field Plans

The CD74HCT4520MG4 can be used in various applications that require counting and dividing binary signals. Some potential application fields include:

1. Frequency Dividers: The counters can be used to divide the frequency of an input signal by a factor of 16, allowing for frequency reduction or synchronization in digital systems.
2. Event Counters: The IC can be utilized to count events or occurrences in a system, such as the number of pulses generated by a sensor.
3. Time Delay Generators: By utilizing the clock input and appropriate circuitry, the IC can be employed to generate precise time delays in digital circuits.
4. Digital Timers: The counters can be configured to function as digital timers, enabling accurate timing operations in various electronic devices.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the CD74HCT4520MG4 are:

1. CD74HC4040E: 12-stage binary ripple counter with a higher bit count (12 bits).
2. CD4020BE: 14-stage binary counter with a higher bit count (14 bits).
3. SN74LS93N: 4-bit binary ripple counter with synchronous reset.

These alternative models can be considered based on specific requirements and desired features for different applications.

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