CD74HC161M

Product Overview

• Category: Integrated Circuit
• Use: Counter
• Characteristics: High-Speed, Synchronous, 4-Bit Binary Counter
• Package: 16-Pin SOIC (Small Outline Integrated Circuit)
• Essence: The CD74HC161M is a high-speed synchronous 4-bit binary counter that operates on a wide voltage range. It is commonly used in digital electronics for counting applications.
• Packaging/Quantity: Available in reels of 2500 units or tubes of 50 units.

Specifications

The CD74HC161M has the following specifications:

• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -55°C to +125°C
• Maximum Clock Frequency: 25 MHz
• Number of Counting Stages: 4
• Counting Sequence: Asynchronous Reset
• Output Type: Synchronous

Detailed Pin Configuration

The CD74HC161M has a 16-pin configuration as follows:

1. Clock Enable (CE)
2. Clock (CP)
3. Parallel Load (PL)
4. Asynchronous Reset (MR)
5. Data Inputs (D0-D3)
6. Carry Output (CO)
7. Count Enable (CEP)
8. Ripple Clock Output (RCO)
9. Outputs (Q0-Q3)
10. Ground (GND)
11. Outputs (Q0-Q3)
12. VCC (+2V to +6V)

Functional Features

• Synchronous Operation: The CD74HC161M performs counting operations synchronously with the clock signal.
• Asynchronous Reset: The counter can be reset asynchronously using the MR pin.
• Parallel Load: The PL pin allows loading of data into the counter in parallel.
• Carry Output: The CO pin provides a carry output for cascading multiple counters.
• Count Enable: The CEP pin enables or disables counting based on its logic level.
• Ripple Clock Output: The RCO pin provides a ripple clock output for cascading multiple counters.

Advantages and Disadvantages

Advantages of the CD74HC161M include:

• High-speed operation
• Wide voltage range
• Synchronous counting
• Asynchronous reset capability
• Compact 16-pin package

Disadvantages of the CD74HC161M include:

• Limited number of counting stages (4 bits)
• Requires external clock signal

Working Principles

The CD74HC161M operates as a synchronous 4-bit binary counter. It counts up or down based on the clock signal and can be reset asynchronously using the MR pin. The counter can also load data in parallel using the PL pin. The outputs represent the current count value, and the carry output allows cascading multiple counters for larger counting ranges.

Detailed Application Field Plans

The CD74HC161M is commonly used in various digital applications, including:

1. Frequency Division: The counter can be used to divide an input frequency by a specific factor.
2. Event Counting: It can count events or pulses occurring within a given time period.
3. Time Delay Generation: The counter can generate precise time delays by counting clock cycles.
4. Address Decoding: It can be used for address decoding in memory and peripheral interfacing circuits.

Detailed and Complete Alternative Models

Some alternative models to the CD74HC161M include:

1. SN74HC161: Similar high-speed synchronous 4-bit binary counter from Texas Instruments.
2. MC74HC161: Another 4-bit binary counter with similar characteristics from ON Semiconductor.
3. CD40161B: A 4-bit synchronous binary counter with asynchronous reset from Texas Instruments.

These alternative models offer similar functionality and can be used as replacements for the CD74HC161M in various applications.

Word count: 511 words