74HC161DB,112

Product Overview

• Category: Integrated Circuit (IC)
• Use: Counter
• Characteristics: High-speed operation, low power consumption
• Package: SOIC-16
• Essence: 4-bit synchronous binary counter with asynchronous reset
• Packaging/Quantity: Tape and reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -40°C to +125°C
• Maximum Clock Frequency: 50 MHz
• Number of Counting Stages: 4
• Reset Type: Asynchronous
• Output Type: Synchronous

Detailed Pin Configuration

The 74HC161DB,112 has a total of 16 pins. The pin configuration is as follows:

1. MR (Master Reset)
2. CP (Clock Pulse)
3. PE (Parallel Enable)
4. T (Terminal Count)
5. QA (Output A)
6. QB (Output B)
7. QC (Output C)
8. QD (Output D)
9. GND (Ground)
10. VCC (Supply Voltage)
11. QD (Output D)
12. QC (Output C)
13. QB (Output B)
14. QA (Output A)
15. T (Terminal Count)
16. PE (Parallel Enable)

Functional Features

• Synchronous counting: The 74HC161DB,112 performs synchronous counting, where the outputs change simultaneously on the rising edge of the clock pulse.
• Asynchronous reset: The master reset (MR) input allows for an asynchronous reset, which clears the counter to its initial state.
• Parallel enable: The parallel enable (PE) input enables or disables the parallel data inputs (QA, QB, QC, QD) to be loaded into the counter.
• Terminal count output: The terminal count (T) output goes high when the counter reaches its maximum value, providing a signal to indicate the end of counting.

Advantages and Disadvantages

Advantages: - High-speed operation: The 74HC161DB,112 is capable of operating at frequencies up to 50 MHz, making it suitable for applications requiring fast counting. - Low power consumption: This IC has low power consumption, making it energy-efficient and suitable for battery-powered devices.

Disadvantages: - Limited counting range: As a 4-bit counter, the 74HC161DB,112 can only count up to 15 before resetting to zero. For applications requiring larger counting ranges, alternative models may be more suitable.

Working Principles

The 74HC161DB,112 is a synchronous binary counter that counts from 0 to 15 in binary representation. It uses a clock pulse input (CP) to increment the count on each rising edge. The counter can be reset to zero using the master reset (MR) input. The parallel enable (PE) input allows the counter to load data from the parallel inputs (QA, QB, QC, QD) when enabled. The terminal count (T) output goes high when the counter reaches its maximum value, indicating the end of counting.

Detailed Application Field Plans

The 74HC161DB,112 can be used in various applications, including:

1. Digital frequency counters
2. Industrial automation systems
3. Electronic voting machines
4. Traffic light control systems
5. Sequential logic circuits

Detailed and Complete Alternative Models

Some alternative models to the 74HC161DB,112 include:

1. CD40161BE: 4-bit synchronous binary counter with asynchronous reset, DIP-16 package
2. SN74LS161N: 4-bit synchronous binary counter with asynchronous reset, DIP-16 package
3. MC74HC161AN: 4-bit synchronous binary counter with asynchronous reset, DIP-16 package

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

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