SN74HC161APWR

Product Overview

Category

SN74HC161APWR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital electronics for various applications such as counters, registers, and other sequential logic circuits.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Schmitt-trigger inputs for noise immunity
• Compatible with TTL and CMOS logic levels

Package

SN74HC161APWR is available in a small-sized TSSOP-16 package.

Essence

The essence of SN74HC161APWR lies in its ability to perform reliable and efficient counting and sequencing operations in digital circuits.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 50 MHz
• Number of Counting Stages: 4
• Output Current: ±6 mA

Detailed Pin Configuration

1. CLK (Clock Input)
2. MR (Master Reset Input)
3. CPD (Count Enable Parallel Input)
4. A (Binary Input A)
5. B (Binary Input B)
6. C (Binary Input C)
7. D (Binary Input D)
8. GND (Ground)
9. QD (Output QD)
10. QC (Output QC)
11. QB (Output QB)
12. QA (Output QA)
13. VCC (Supply Voltage)
14. LOAD (Parallel Load Input)
15. ENT (Enable Counting Input)
16. TC (Terminal Count Output)

Functional Features

• Asynchronous Master Reset (MR) input for resetting the counter to zero.
• Count Enable Parallel (CPD) input for loading a specific count into the counter.
• Enable Counting (ENT) input for enabling or disabling the counting operation.
• Terminal Count (TC) output indicates when the counter reaches its maximum count value.
• Schmitt-trigger inputs provide noise immunity and improve signal integrity.

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient counting in various applications.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range provides flexibility in different voltage environments.
• Schmitt-trigger inputs ensure reliable operation even in noisy environments.
• Compatibility with TTL and CMOS logic levels allows for easy integration into existing circuits.

Disadvantages

• Limited number of counting stages (4 in this case) may not be sufficient for complex applications requiring higher counts.
• Lack of built-in error detection or correction mechanisms, which may be necessary in critical applications.

Working Principles

SN74HC161APWR is a synchronous 4-bit binary counter. It counts up or down based on the clock input and control signals. The counter can be reset to zero using the Master Reset (MR) input. The Count Enable Parallel (CPD) input allows loading a specific count into the counter. The Enable Counting (ENT) input enables or disables the counting operation. The Terminal Count (TC) output indicates when the counter reaches its maximum count value.

Detailed Application Field Plans

SN74HC161APWR finds applications in various digital systems, including: - Frequency dividers - Event counters - Time delay generators - Industrial automation - Communication systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SN74HC161APWR are: - CD40161BE - MC74HC161N - 74HCT161N - CD74HC161E

These alternative models can be considered based on specific requirements, availability, and pricing.

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