SN74LVCH244APWT

Overview

• Category: Integrated Circuit
• Use: Buffer/Line Driver
• Characteristics: Low-Voltage, High-Speed, Octal Bus Buffer
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Provides buffering and line driving capabilities for digital signals
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 400 MHz
• Number of Buffers/Drivers: 8
• Input/Output Type: Non-Inverting
• Output Current: ±24mA
• Propagation Delay Time: 2.5ns (max) at 3.3V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The SN74LVCH244APWT has a total of 20 pins, which are assigned as follows:

1. A1 - Input 1
2. Y1 - Output 1
3. A2 - Input 2
4. Y2 - Output 2
5. GND - Ground
6. A3 - Input 3
7. Y3 - Output 3
8. A4 - Input 4
9. Y4 - Output 4
10. VCC - Power Supply
11. A5 - Input 5
12. Y5 - Output 5
13. A6 - Input 6
14. Y6 - Output 6
15. A7 - Input 7
16. Y7 - Output 7
17. A8 - Input 8
18. Y8 - Output 8
19. OE - Output Enable
20. GND - Ground

Functional Features

• Low-voltage operation allows compatibility with various logic levels.
• High-speed performance enables efficient signal buffering and line driving.
• Octal bus buffer design provides multiple input/output channels.
• Non-inverting input/output type ensures signal integrity.

Advantages

• Wide supply voltage range allows flexibility in different applications.
• High-speed operation enhances overall system performance.
• Non-inverting output simplifies signal routing and reduces complexity.
• Compact TSSOP package saves board space and facilitates integration.

Disadvantages

• Limited output current may restrict use in certain high-power applications.
• Propagation delay time may introduce timing issues in critical systems.
• Temperature range might not be suitable for extreme environmental conditions.

Working Principles

The SN74LVCH244APWT is an octal bus buffer that operates as a non-inverting line driver. It receives digital signals at its input pins (A1-A8) and amplifies them to drive corresponding outputs (Y1-Y8). The output enable pin (OE) controls the activation of the buffer, allowing the user to enable or disable the output stage as needed. The device operates within a specified supply voltage range and provides high-speed signal buffering capabilities.

Detailed Application Field Plans

The SN74LVCH244APWT finds applications in various fields, including:

1. Microcontrollers: Provides signal buffering between microcontroller pins and external devices, ensuring reliable communication.
2. Memory Interfaces: Facilitates data transfer between memory modules and other components, enhancing system performance.
3. Communication Systems: Enables signal amplification and line driving in communication interfaces, improving signal integrity.
4. Industrial Automation: Supports digital signal buffering in control systems, enhancing reliability and noise immunity.
5. Automotive Electronics: Used for signal conditioning and level shifting in automotive electronic systems, ensuring proper signal transmission.

Detailed and Complete Alternative Models

1. SN74LVCH244A-Q1: Automotive-grade version with enhanced temperature range (-40°C to +125°C).
2. SN74LVC244A: Similar functionality but operates at a higher supply voltage range (1.65V to 5.5V).
3. SN74LVCH245A: Octal bus transceiver with bidirectional data flow capability.
4. SN74LVCH240A: Octal inverting buffer/line driver with similar characteristics.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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