74HCT4520DB,112

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Digital Counter/Divider
• Characteristics: High-speed operation, low power consumption
• Package: SSOP-16
• Essence: Binary Ripple Counter with Oscillator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.0V to 6.0V
• Operating Temperature Range: -40°C to +125°C
• Maximum Clock Frequency: 50MHz
• Number of Stages: Dual 4-bit binary counters
• Output Type: Synchronous

Detailed Pin Configuration

1. CLK (Clock Input)
2. MR (Master Reset Input)
3. CP1 (Clock Pulse Input for Counter 1)
4. CP2 (Clock Pulse Input for Counter 2)
5. Qa-Qd (Outputs for Counter 1)
6. Qa-Qd (Outputs for Counter 2)
7. GND (Ground)
8. VCC (Supply Voltage)

Functional Features

• Dual 4-bit binary counters with separate clock inputs
• Asynchronous master reset input for both counters
• Synchronous counter operation
• Outputs can be used as ripple-carry inputs for cascading multiple counters

Advantages

• High-speed operation allows for efficient counting/dividing in digital circuits
• Low power consumption makes it suitable for battery-powered devices
• Compact SSOP-16 package saves board space
• Versatile functionality enables various applications

Disadvantages

• Limited number of stages (4 bits) may not be sufficient for certain complex applications
• Requires external oscillator for proper operation

Working Principles

The 74HCT4520DB,112 is a dual 4-bit binary ripple counter with an integrated oscillator. It counts the number of clock pulses applied to its inputs and provides binary outputs representing the count. The counter operates synchronously, meaning that the outputs change simultaneously with the clock input. The master reset input allows for asynchronous resetting of both counters to a predefined state.

Detailed Application Field Plans

• Frequency division: The 74HCT4520DB,112 can be used to divide the frequency of an input signal by a factor of 2^4 (16). This is useful in applications where lower frequencies are required.
• Event counting: By connecting external sensors or switches to the clock inputs, the IC can count events such as button presses, rotations, or pulses.
• Timekeeping: When combined with an external oscillator, the counter can be used to measure time intervals or generate precise timing signals.

Detailed and Complete Alternative Models

• CD4520: Similar dual 4-bit binary ripple counter, but operates at a lower maximum clock frequency of 5MHz.
• SN74LS4520: Dual 4-bit synchronous binary counter with similar functionality, but uses different logic family (LS-TTL).

(Note: The above alternatives are just examples and not an exhaustive list.)

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