SN74LVT244BZQNR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: Low Voltage, High-Speed, 3-State Outputs
• Package: 20-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic Level Translation and Signal Amplification
• 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: 400MHz
• Number of Channels: 8
• Output Current: ±12mA
• Propagation Delay Time: 2.5ns (Max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVT244BZQNR has a total of 20 pins, numbered as follows:

1. A1
2. Y1
3. A2
4. Y2
5. GND
6. Y3
7. A3
8. Y4
9. A4
10. Y5
11. GND
12. Y6
13. A5
14. Y7
15. A6
16. Y8
17. VCC
18. OE#
19. GND
20. OE#

Functional Features

• Logic Level Translation: The SN74LVT244BZQNR is designed to translate logic levels between different voltage domains, allowing seamless communication between devices operating at different voltages.
• Signal Amplification: It can amplify weak input signals to stronger output signals, ensuring reliable transmission over long distances or through noisy environments.
• 3-State Outputs: The 3-state outputs allow the device to be effectively disconnected from the bus, reducing power consumption and preventing conflicts on shared communication lines.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - High-speed operation enables efficient data transfer. - 3-state outputs provide flexibility in bus sharing applications. - Small package size saves board space.

Disadvantages: - Limited output current may not be suitable for driving heavy loads. - Propagation delay time may introduce timing issues in certain applications. - Temperature range may restrict usage in extreme environments.

Working Principles

The SN74LVT244BZQNR operates by receiving input signals on its A1-A6 pins. These signals are then translated and amplified by the internal circuitry. The resulting output signals appear on the Y1-Y8 pins. The OE# pins control the enable/disable state of the outputs. When OE# is low, the outputs are active; when OE# is high, the outputs are in a high-impedance state.

Detailed Application Field Plans

The SN74LVT244BZQNR finds applications in various fields, including:

1. Microcontroller Interfacing: It can be used to interface microcontrollers operating at different voltage levels, enabling communication between them.
2. Level Shifting: It facilitates level shifting in mixed-voltage systems, allowing components with different voltage requirements to work together.
3. Bus Driving: It serves as a buffer/line driver for buses, ensuring signal integrity and preventing data corruption during transmission.
4. Signal Amplification: It amplifies weak signals from sensors or other low-power devices, enhancing their reliability and range.

Detailed and Complete Alternative Models

1. SN74LVC244A: Similar to SN74LVT244BZQNR but operates at a lower voltage range (1.65V to 3.3V).
2. SN74LVTH244A: Offers higher output current (±32mA) and lower propagation delay time (1.5ns max).
3. SN74LVC245A: Provides bidirectional level translation capability.

These alternative models offer similar functionality but may have different specifications or features to suit specific application requirements.

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