SN74LS161ANG4

Product Overview

Category

SN74LS161ANG4 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

• Low-power Schottky technology
• 4-bit synchronous binary counter
• Asynchronous clear input
• Synchronous parallel load capability
• Cascadable for n-bit applications
• Wide operating voltage range: 2V to 6V
• High-speed operation: 25 ns typical clock-to-output delay

Package

SN74LS161ANG4 is available in a 16-pin DIP (Dual In-line Package) format.

Essence

The essence of SN74LS161ANG4 lies in its ability to perform counting and sequencing operations in digital circuits with high speed and low power consumption.

Packaging/Quantity

SN74LS161ANG4 is typically packaged in tubes or reels, containing multiple units per package. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Logic Family: LS-TTL (Low-Power Schottky Transistor-Transistor Logic)
• Number of Bits: 4
• Clock Frequency: Up to 25 MHz
• Output Current: ±8 mA
• Input Capacitance: 3 pF
• Propagation Delay: 25 ns (typical)

Detailed Pin Configuration

1. Clock (CLK)
2. Parallel Load (PL)
3. Enable (ENP)
4. Clear (CLR)
5. Data Inputs (D0-D3)
6. Carry Out (CO)
7. Outputs (Q0-Q3)
8. Ground (GND)
9. Outputs (Q0-Q3)
10. Carry Out (CO)
11. Data Inputs (D0-D3)
12. Clear (CLR)
13. Enable (ENT)
14. Parallel Load (PL)
15. Clock (CLK)
16. VCC (Supply Voltage)

Functional Features

Synchronous Binary Counter

SN74LS161ANG4 is a 4-bit synchronous binary counter that can count up or down based on the clock input.

Asynchronous Clear Input

The asynchronous clear input allows the counter to be reset to its initial state, regardless of the clock input.

Synchronous Parallel Load Capability

The parallel load input enables the counter to load a specific value into its internal registers in a synchronous manner.

Cascadable for n-Bit Applications

Multiple SN74LS161ANG4 ICs can be cascaded together to create counters with a higher number of bits.

Advantages and Disadvantages

Advantages

• Low-power consumption due to LS-TTL technology
• High-speed operation for quick counting applications
• Wide operating voltage range allows compatibility with various systems
• Cascadable design enables scalability for larger counters

Disadvantages

• Limited to 4-bit counting capability
• Requires external components for more complex operations

Working Principles

SN74LS161ANG4 operates based on the principles of synchronous sequential logic. The clock input triggers the counter to increment or decrement its current value. The parallel load input allows a specific value to be loaded into the counter's internal registers. The asynchronous clear input resets the counter to its initial state.

Detailed Application Field Plans

SN74LS161ANG4 finds applications in various fields, including: 1. Digital frequency dividers 2. Event counters 3. Industrial automation 4. Communication systems 5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to SN74LS161ANG4 include: 1. CD40161BE 2. MC74HC161N 3. 74HCT161

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

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