74HCT161N,652

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Counter
• Characteristics: High-speed operation, low power consumption
• Package: DIP-16 (Dual In-line Package with 16 pins)
• Essence: Synchronous presettable binary counter
• Packaging/Quantity: Tape and reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2.0V to 6.0V
• Operating Temperature Range: -40°C to +125°C
• Maximum Clock Frequency: 50 MHz
• Number of Counting Stages: 4
• Maximum Count: 15 (Binary)
• Output Type: Standard

Detailed Pin Configuration

1. Clock Enable (CE)
2. Asynchronous Clear (CLR)
3. Parallel Load (PL)
4. Data Inputs (D0-D3)
5. Carry Out (CO)
6. Clock (CLK)
7. Down/Up (D/U)
8. BCD Outputs (Q0-Q3)
9. Ripple Clock (RC)
10. Carry In (CI)
11. GND (Ground)
12. BCD Outputs (Q0-Q3)
13. BCD Outputs (Q0-Q3)
14. BCD Outputs (Q0-Q3)
15. VCC (Positive Power Supply)
16. BCD Outputs (Q0-Q3)

Functional Features

• Synchronous counting operation
• Asynchronous parallel load capability
• Asynchronous clear input for immediate reset
• Carry-in and carry-out for cascading counters
• Up or down counting mode selection
• Schmitt-trigger action on all inputs

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient counting in various applications - Low power consumption makes it suitable for battery-powered devices - Versatile functionality with synchronous and asynchronous operations - Schmitt-trigger action ensures reliable input signal processing

Disadvantages: - Limited maximum count of 15 (binary) - DIP-16 package may require additional space compared to smaller packages - Not suitable for applications requiring higher counting stages

Working Principles

The 74HCT161N,652 is a synchronous presettable binary counter. It counts up or down based on the clock input and the direction control (D/U) input. The counter can be preset to any desired value using the parallel load (PL) input. The carry-in (CI) and carry-out (CO) pins allow cascading multiple counters for larger counting ranges.

Detailed Application Field Plans

1. Frequency Division: The 74HCT161N,652 can be used to divide an input frequency by a specific factor, allowing for frequency scaling in various electronic systems.
2. Event Counting: By connecting external sensors or switches to the clock input, the counter can keep track of events such as button presses, rotations, or pulses.
3. Time Delay Generation: Utilizing the counter's clock input and appropriate circuitry, precise time delays can be generated for various applications like timers or sequential control systems.

Detailed and Complete Alternative Models

1. 74HC161: Similar to 74HCT161N,652 but operates at a wider supply voltage range (2V to 6V).
2. CD40161B: CMOS-based binary counter with similar functionality but operates at a lower clock frequency.
3. SN74LS161A: TTL-based binary counter with comparable specifications and pin configuration.

(Note: These alternative models are provided as examples and may have slight differences in characteristics and performance.)

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