SN74LVC2244APWRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Line Driver
• Characteristics: Low-Voltage CMOS Octal Buffer/Line Driver with 3-State Outputs
• Package: TSSOP-20
• Essence: This IC is designed to provide buffering and line driving capabilities for digital signals in low-voltage applications.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: 2.4V (min) at IOH = -12mA
• Low-Level Output Voltage: 0.4V (max) at IOL = 24mA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74LVC2244APWRE4 has a TSSOP-20 package with the following pin configuration:

___________ | | 1A |1 20| 1Y 2A |2 19| 2Y 3A |3 18| 3Y 4A |4 17| 4Y 5A |5 16| 5Y 6A |6 15| 6Y 7A |7 14| 7Y 8A |8 13| 8Y GND |9 12| VCC OE |10 11| GND |___________|

Functional Features

• Octal buffer/line driver with 3-state outputs.
• Inputs and outputs are compatible with both TTL and CMOS logic levels.
• Provides non-inverting buffers for data, address, or control lines.
• 3-state outputs allow multiple devices to be connected to a common bus.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Low-voltage operation reduces power consumption. - 3-state outputs enable efficient bus sharing.

Disadvantages: - Limited output current capability. - Not suitable for high-speed applications.

Working Principles

The SN74LVC2244APWRE4 operates by receiving digital signals at its input pins (1A to 8A) and providing buffered outputs at the corresponding output pins (1Y to 8Y). The 3-state outputs can be enabled or disabled using the OE (Output Enable) pin. When disabled, the outputs enter a high-impedance state, allowing other devices to drive the bus.

Detailed Application Field Plans

The SN74LVC2244APWRE4 is commonly used in various applications, including:

1. Microcontroller interfacing: It can be used to interface microcontrollers with external devices, such as memory chips or display modules.
2. Bus drivers: It is suitable for driving buses in communication systems, where multiple devices need to share a common data bus.
3. Level shifting: It can be used to shift logic levels between different voltage domains, enabling communication between systems operating at different voltages.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74LVC2244APWRE4 include:

1. SN74LVC244APW: Octal Buffer/Line Driver with 3-State Outputs, available in a TSSOP-20 package.
2. SN74LVC4245APW: Octal Bus Transceiver with 3-State Outputs, available in a TSSOP-20 package.
3. SN74LVC573APW: Octal D-Type Flip-Flop with 3-State Outputs, available in a TSSOP-20 package.

These alternative models can be considered based on specific requirements and compatibility with the target system.

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