DM74S161N

Product Overview

Category

DM74S161N belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• DM74S161N is a synchronous 4-bit binary counter.
• It operates on a supply voltage range of 4.75V to 5.25V.
• The IC has a maximum clock frequency of 25 MHz.
• It is designed to work in a wide temperature range of -55°C to +125°C.

Package

DM74S161N is available in a 16-pin dual in-line package (DIP).

Essence

The essence of DM74S161N lies in its ability to count binary numbers synchronously, making it an essential component in digital systems.

Packaging/Quantity

DM74S161N is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 4.75V to 5.25V
• Maximum Clock Frequency: 25 MHz
• Operating Temperature Range: -55°C to +125°C
• Logic Family: TTL (Transistor-Transistor Logic)
• Number of Pins: 16
• Package Type: DIP (Dual In-Line Package)

Detailed Pin Configuration

1. Clock Enable (CE)
2. Parallel Load (PL)
3. Data Inputs (D0-D3)
4. Carry Output (CO)
5. Ripple Clock (RC)
6. Clock Input (CP)
7. Clock Inhibit (CI)
8. Data Outputs (Q0-Q3)
9. Ground (GND)
10. Carry Input (CI)
11. Preset Enable (PE)
12. Asynchronous Parallel Load (APL)
13. Asynchronous Clear (AC)
14. Carry Enable (CE)
15. VCC (+5V)
16. Ripple Clock Output (RCO)

Functional Features

• Synchronous counting of binary numbers.
• Parallel load capability for presetting the counter value.
• Carry input and output for cascading multiple counters.
• Asynchronous clear function to reset the counter.
• Clock enable and inhibit options for controlling the counting operation.

Advantages and Disadvantages

Advantages

• High-speed operation due to TTL logic family.
• Versatile functionality for various digital applications.
• Wide operating temperature range allows usage in extreme conditions.
• Compact package size for easy integration into circuit designs.

Disadvantages

• Limited number of bits (4-bit) may not be suitable for certain applications requiring larger counters.
• Power consumption is relatively higher compared to some modern ICs.

Working Principles

DM74S161N operates based on synchronous counting principles. The clock input (CP) triggers the counter to increment its count by one on each rising edge of the clock signal. The parallel load (PL) input allows presetting the counter value using the data inputs (D0-D3). The carry input (CI) and carry output (CO) facilitate cascading multiple counters to achieve higher bit counts.

Detailed Application Field Plans

DM74S161N finds applications in various fields, including but not limited to: 1. Digital frequency dividers 2. Event counters 3. Industrial automation systems 4. Communication equipment 5. Automotive electronics 6. Robotics 7. Data processing units

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to DM74S161N are: 1. SN74LS161N 2. CD74HC161E 3. MC74HC161N 4. 74F161AN 5. 74HC161D

These alternative models offer similar functionality and can be used as drop-in replacements for DM74S161N in various applications.

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