SN74ALS561ADWE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Function
• Characteristics: Advanced Schottky (ALS) Technology, 8-Bit Transparent Latch with 3-State Outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: High-performance latch with 3-state outputs
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 7ns (typical)
• Output Current: ±24mA
• Input Capacitance: 3pF
• Output Capacitance: 15pF

Detailed Pin Configuration

1. GND (Ground)
2. D0 (Data Input 0)
3. D1 (Data Input 1)
4. D2 (Data Input 2)
5. D3 (Data Input 3)
6. D4 (Data Input 4)
7. D5 (Data Input 5)
8. D6 (Data Input 6)
9. D7 (Data Input 7)
10. LE (Latch Enable)
11. OE (Output Enable)
12. Q0 (Output 0)
13. Q1 (Output 1)
14. Q2 (Output 2)
15. Q3 (Output 3)
16. VCC (Supply Voltage)

Functional Features

The SN74ALS561ADWE4 is an 8-bit transparent latch with 3-state outputs. It is designed using advanced Schottky (ALS) technology, which provides high-speed operation and low power consumption. The latch has a latch enable (LE) input, which allows the data inputs to be latched onto the outputs when LE is high. The output enable (OE) input controls the 3-state outputs, allowing them to be either active or in a high-impedance state.

Advantages and Disadvantages

Advantages: - High-speed operation - Low power consumption - 3-state outputs for bus-oriented applications - Wide operating temperature range

Disadvantages: - Limited supply voltage range (4.5V to 5.5V) - Limited output current capacity

Working Principles

The SN74ALS561ADWE4 operates by latching the data inputs onto the outputs when the latch enable (LE) input is high. The output enable (OE) input controls the 3-state outputs, allowing them to be either active or in a high-impedance state. This feature is useful in bus-oriented applications where multiple devices share a common bus.

Detailed Application Field Plans

The SN74ALS561ADWE4 can be used in various applications, including: 1. Data storage systems 2. Address decoding circuits 3. Bus drivers 4. Memory interfacing 5. Microprocessor-based systems

Detailed and Complete Alternative Models

1. SN74ALS563ADWE4: 8-Bit Transparent Latch with 3-State Outputs, similar characteristics and pin configuration.
2. SN74ALS564ADWE4: 8-Bit D-Type Edge-Triggered Register with 3-State Outputs, provides additional edge-triggered functionality.

Note: These alternative models offer similar functionality and can be used as replacements depending on specific requirements.

This encyclopedia entry provides an overview of the SN74ALS561ADWE4 integrated circuit, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.