DM74LS161AN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Counter
• Characteristics: 4-bit synchronous binary counter, low power consumption, high-speed operation
• Package: DIP (Dual In-line Package)
• Essence: The DM74LS161AN is a 4-bit synchronous binary counter that can be used in various applications requiring counting functionality.
• Packaging/Quantity: Typically sold in packs of 25 or 50 units.

Specifications

• Supply Voltage: 5V
• Operating Temperature Range: -55°C to +125°C
• Maximum Clock Frequency: 25 MHz
• Number of Counting Stages: 4
• Output Type: TTL (Transistor-Transistor Logic)

Detailed Pin Configuration

The DM74LS161AN has a total of 16 pins. Here is the detailed pin configuration:

1. CLK (Clock Input)
2. MR (Master Reset Input)
3. CPD (Count Enable Parallel Input)
4. PE (Parallel Enable Input)
5. TC (Terminal Count Output)
6. Q0 (Least Significant Bit Output)
7. Q1 (Output)
8. Q2 (Output)
9. Q3 (Most Significant Bit Output)
10. GND (Ground)
11. Q3 (Most Significant Bit Output)
12. Q2 (Output)
13. Q1 (Output)
14. Q0 (Least Significant Bit Output)
15. VCC (Supply Voltage)
16. CE (Count Enable Input)

Functional Features

• Synchronous Operation: The DM74LS161AN performs counting operations synchronously with the clock input.
• Parallel Load Capability: It allows parallel loading of the initial count value through the CPD and PE inputs.
• Asynchronous Master Reset: The MR input resets the counter asynchronously to its initial state.
• Terminal Count Output: The TC output goes high when the counter reaches its maximum count value.

Advantages and Disadvantages

Advantages: - Low power consumption - High-speed operation - Easy to use and integrate into various digital circuits

Disadvantages: - Limited number of counting stages (4 bits) - Requires external components for more complex counting operations

Working Principles

The DM74LS161AN is a synchronous binary counter that counts from 0 to 15 in binary. It operates based on the clock input and performs counting operations synchronously. The counter can be reset to its initial state using the master reset input. The parallel enable input allows loading of an initial count value in parallel. The terminal count output indicates when the counter has reached its maximum count value.

Detailed Application Field Plans

The DM74LS161AN can be used in various applications that require counting functionality, such as:

1. Digital frequency dividers
2. Event counters
3. Time delay generators
4. Pulse width modulators
5. Sequential logic circuits

Detailed and Complete Alternative Models

Some alternative models to the DM74LS161AN include:

1. SN74LS161AN: Similar 4-bit synchronous binary counter with TTL logic.
2. CD74HC161E: 4-bit synchronous binary counter with CMOS logic.
3. MC74HC161N: High-speed 4-bit synchronous binary counter with CMOS logic.

These alternative models offer similar functionality but may have different characteristics and specifications.

Word count: 364 words