SN74ALS577ADWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Device
• Characteristics: High-speed, low-power consumption
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: 8-bit D-type transparent 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
• Output Drive Capability: ±24mA at 4.5V
• Propagation Delay Time: 6ns typical
• Power Dissipation: 500mW maximum

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. OE (Output Enable)
11. LE (Latch Enable)
12. CLK (Clock Input)
13. Q0 (Output 0)
14. Q1 (Output 1)
15. Q2 (Output 2)
16. Q3 (Output 3)
17. Q4 (Output 4)
18. Q5 (Output 5)
19. Q6 (Output 6)
20. Q7 (Output 7)
21. VCC (Supply Voltage)

Functional Features

• 8-bit transparent latch with 3-state outputs
• Latch Enable (LE) input controls the storage of data
• Output Enable (OE) input enables/disables the outputs
• Clock (CLK) input synchronizes the data transfer
• High-speed operation with low power consumption
• 3-state outputs allow multiple devices to share a bus

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Low-power consumption reduces energy usage - 3-state outputs enable bus sharing among multiple devices

Disadvantages: - Limited voltage range (4.5V to 5.5V) - Propagation delay time may affect timing-sensitive applications

Working Principles

The SN74ALS577ADWR is an 8-bit D-type transparent latch with 3-state outputs. It stores data when the Latch Enable (LE) input is high and transfers the stored data to the outputs when the Clock (CLK) input transitions from high to low. The Output Enable (OE) input controls whether the outputs are active or in a high-impedance state.

Detailed Application Field Plans

The SN74ALS577ADWR can be used in various applications, including:

1. Data storage and transfer in microprocessors and microcontrollers.
2. Address decoding in memory systems.
3. Bus interfacing in communication systems.
4. Control signal generation in digital circuits.
5. Register implementation in arithmetic logic units (ALUs).

Detailed and Complete Alternative Models

1. SN74ALS574ADWR: 8-bit D-type flip-flop with 3-state outputs.
2. SN74ALS573ADWR: Octal D-type transparent latch with 3-state outputs.
3. SN74ALS579ADWR: 9-bit D-type transparent latch with 3-state outputs.
4. SN74ALS576ADWR: Hex D-type flip-flop with 3-state outputs.

These alternative models provide similar functionality and can be used as substitutes for the SN74ALS577ADWR in various applications.

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