SN74LS374DBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: Octal D-Type Transparent Latch with 3-State Outputs
• Package: SSOP-20
• Essence: The SN74LS374DBR is a high-speed, low-power octal D-type transparent latch designed for general-purpose storage applications in digital systems.
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 4.75V to 5.25V
• High-Level Input Voltage: 2V (min), 7V (max)
• Low-Level Input Voltage: 0.8V (min), 0.8V (max)
• High-Level Output Voltage: 2.7V (min), VCC (max)
• Low-Level Output Voltage: 0.5V (min), 0.5V (max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LS374DBR has a total of 20 pins. The pin configuration is as follows:

1. D0 - Data input 0
2. D1 - Data input 1
3. D2 - Data input 2
4. D3 - Data input 3
5. D4 - Data input 4
6. D5 - Data input 5
7. D6 - Data input 6
8. D7 - Data input 7
9. GND - Ground
10. Q0 - Output 0
11. Q1 - Output 1
12. Q2 - Output 2
13. Q3 - Output 3
14. Q4 - Output 4
15. Q5 - Output 5
16. Q6 - Output 6
17. Q7 - Output 7
18. OE - Output Enable
19. CP - Clock Pulse
20. VCC - Power Supply

Functional Features

The SN74LS374DBR features the following:

• Octal D-type transparent latch with 3-state outputs
• High-speed operation
• Low-power consumption
• Direct interface with TTL levels
• Buffered common clock
• 3-state outputs for bus-oriented applications
• Outputs can drive up to 15 LS-TTL loads

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data storage and retrieval - Low-power consumption helps in reducing overall power requirements - Direct interface with TTL levels simplifies integration into existing systems - 3-state outputs enable easy connection to bus lines

Disadvantages: - Limited voltage range of operation (4.75V to 5.25V) - Temperature limitations (-40°C to +85°C) may restrict usage in extreme environments

Working Principles

The SN74LS374DBR operates as an octal D-type transparent latch. It stores data on the rising edge of the clock pulse when the output enable (OE) is low. The stored data remains latched until the next clock pulse. The 3-state outputs allow the device to be connected to a bus, enabling multiple devices to share the same data lines.

Detailed Application Field Plans

The SN74LS374DBR finds applications in various digital systems where efficient data storage and retrieval are required. Some potential application fields include:

1. Microprocessors and microcontrollers
2. Data storage systems
3. Communication systems
4. Industrial automation
5. Automotive electronics
6. Consumer electronics

Detailed and Complete Alternative Models

1. SN74LS373: Octal D-Type Transparent Latch with 3-State Outputs
2. SN74LS374N: Octal D-Type Transparent Latch with 3-State Outputs (DIP-20 package)
3. SN74LS374DW: Octal D-Type Transparent Latch with 3-State Outputs (SOIC-20 package)

These alternative models offer similar functionality and can be used as replacements for the SN74LS374DBR in various applications.

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