SN74AS169ADRE4

Product Overview

• Category: Integrated Circuit
• Use: Digital Counter
• Characteristics: High-speed, synchronous, 4-bit binary counter
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Counting and sequencing digital signals
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Maximum Clock Frequency: 100MHz
• Number of Bits: 4
• Logic Family: AS (Advanced Schottky)

Detailed Pin Configuration

The SN74AS169ADRE4 has a total of 16 pins. The pin configuration is as follows:

1. CLR (Clear) - Clear input for resetting the counter
2. CLK (Clock) - Input clock signal for counting
3. A0 (Least Significant Bit) - Binary input bit 0
4. B0 (Least Significant Bit) - Binary input bit 1
5. C0 (Least Significant Bit) - Binary input bit 2
6. D0 (Least Significant Bit) - Binary input bit 3
7. Q0 (Least Significant Bit) - Output bit 0
8. Q1 - Output bit 1
9. Q2 - Output bit 2
10. Q3 (Most Significant Bit) - Output bit 3
11. GND (Ground) - Ground reference
12. VCC (Supply Voltage) - Positive supply voltage
13. CE (Count Enable) - Enable input for counting
14. P (Parallel Load) - Input for parallel loading data
15. ENT (Enable Parallel Load) - Enable input for parallel loading
16. MR (Master Reset) - Master reset input for clearing the counter

Functional Features

• High-speed synchronous counting
• Synchronous parallel loading of initial values
• Asynchronous master reset for clearing the counter
• Count enable input for controlling the counting operation
• Outputs available in both binary and decade formats

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient counting in time-critical applications - Synchronous parallel loading enables easy initialization of the counter - Decade outputs provide additional flexibility in circuit design

Disadvantages: - Limited to 4-bit counting, may not be suitable for applications requiring larger counters - Requires external clock signal for counting, which adds complexity to the circuit design

Working Principles

The SN74AS169ADRE4 is a synchronous 4-bit binary counter. It counts digital signals based on the input clock signal and can be cleared using the clear input or asynchronously reset using the master reset input. The counter can also be loaded with initial values in parallel using the parallel load input.

When the count enable input is high, the counter increments its value on each rising edge of the clock signal. The outputs represent the current count in binary format, with Q0 being the least significant bit and Q3 being the most significant bit.

Detailed Application Field Plans

The SN74AS169ADRE4 is commonly used in various applications that require counting and sequencing of digital signals. Some of the specific application fields include:

1. Digital frequency dividers
2. Event counters
3. Time delay generators
4. Sequence generators
5. Frequency synthesizers

Detailed and Complete Alternative Models

1. SN74LS169AN - Low-power Schottky version of the 4-bit binary counter
2. CD40161BE - CMOS version of the 4-bit binary counter
3. MC14040BCP - Ripple carry binary counter with similar functionality

These alternative models offer similar functionality to the SN74AS169ADRE4 and can be used as replacements depending on specific requirements and design constraints.

In conclusion, the SN74AS169ADRE4 is a high-speed synchronous 4-bit binary counter integrated circuit. It offers various features such as parallel loading, master reset, and count enable inputs. The counter finds applications in digital frequency dividers, event counters, and other related fields. Alternative models are available for different design considerations.