SN74AS169ADG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Counter/Divider
• Characteristics: High-speed, synchronous, 4-bit binary up/down counter
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: A versatile counter/divider IC with synchronous operation and high-speed capabilities
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Maximum Clock Frequency: 100 MHz
• Number of Counting Bits: 4
• Counting Modes: Up, Down, or Asynchronous Load
• Output Type: Complementary Outputs
• Input Type: TTL-Compatible

Detailed Pin Configuration

The SN74AS169ADG4 has a total of 16 pins, each serving a specific function:

1. CLK (Clock Input)
2. LOAD (Asynchronous Load Input)
3. D0 (Data Input Bit 0)
4. D1 (Data Input Bit 1)
5. D2 (Data Input Bit 2)
6. D3 (Data Input Bit 3)
7. UP/DOWN (Up/Down Control Input)
8. GND (Ground)
9. Q0 (Output Bit 0)
10. Q1 (Output Bit 1)
11. Q2 (Output Bit 2)
12. Q3 (Output Bit 3)
13. VCC (Positive Power Supply)
14. NC (No Connection)
15. NC (No Connection)
16. NC (No Connection)

Functional Features

• Synchronous Operation: The counter operates synchronously with the clock signal, ensuring accurate counting.
• Up/Down Control: The direction of counting can be controlled using the UP/DOWN input.
• Asynchronous Load: The counter can be loaded with a preset value asynchronously using the LOAD input.
• Complementary Outputs: The outputs provide complementary binary values, making it suitable for various applications.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient counting in time-critical applications. - Versatile counting modes (up, down, or asynchronous load) offer flexibility in different scenarios. - Complementary outputs simplify circuit design and enhance compatibility with other components.

Disadvantages: - Limited number of counting bits (4 bits), which may not be sufficient for certain complex applications. - Requires an external clock signal for proper operation.

Working Principles

The SN74AS169ADG4 is based on synchronous counter architecture. It utilizes flip-flops to store and propagate the count value. The clock signal synchronizes the flip-flop operations, ensuring accurate counting. The UP/DOWN control input determines the direction of counting, while the LOAD input allows for loading a preset value asynchronously.

Detailed Application Field Plans

The SN74AS169ADG4 finds applications in various fields, including:

1. Digital Counters: Used in digital systems for counting events, pulses, or cycles.
2. Frequency Division: Employed as a frequency divider to generate lower-frequency signals from high-frequency inputs.
3. Timekeeping: Integrated into timekeeping circuits to track elapsed time or implement timers.
4. Industrial Automation: Utilized in industrial automation systems for process control and monitoring.

Detailed and Complete Alternative Models

1. SN74LS169AN: Similar 4-bit synchronous up/down counter IC with TTL-compatible inputs.
2. CD4516BE: 4-bit synchronous binary up/down counter IC with complementary outputs.
3. MC14516B: Synchronous programmable BCD counter IC with up/down control.

These alternative models offer similar functionalities and can be considered as substitutes for the SN74AS169ADG4 in various applications.

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