SN74ALS374ADBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: High-speed, low-power consumption
• Package: SSOP-20
• Essence: D-type transparent latch
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Logic Family: ALS
• Number of Bits: 8
• Supply Voltage Range: 4.5V to 5.5V
• High-Level Output Current: -0.4mA
• Low-Level Output Current: 8mA
• Propagation Delay Time: 6ns
• Operating Temperature Range: -40°C to +85°C

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

Functional Features

The SN74ALS374ADBR is an octal D-type transparent latch with 3-state outputs. It is designed to store and transfer data in high-speed digital systems. The latch is transparent when the clock pulse (CP) is high, allowing the input data to propagate to the outputs. When the CP is low, the latch holds the last input data. The output enable (OE) input controls the 3-state outputs, enabling or disabling them as needed.

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) - Propagation delay time may affect timing-sensitive applications

Working Principles

The SN74ALS374ADBR operates based on positive-edge-triggered flip-flops. When the clock pulse (CP) transitions from low to high, the latch becomes transparent, allowing the input data to pass through to the outputs. When the CP is low, the latch holds the last input data, preserving it until the next clock pulse transition.

Detailed Application Field Plans

The SN74ALS374ADBR is commonly used in various digital systems where data storage and transfer are required. Some application fields include:

1. Microprocessors and microcontrollers
2. Data communication systems
3. Memory modules
4. Industrial automation
5. Automotive electronics

Detailed and Complete Alternative Models

1. SN74ALS373: Octal D-type transparent latch with non-inverting 3-state outputs
2. SN74ALS574: Octal D-type flip-flop with 3-state outputs
3. SN74ALS374A: Improved version of SN74ALS374ADBR with lower propagation delay time

Note: This list is not exhaustive, and there are several alternative models available in the market.

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