SN74LVTH244APW

The SN74LVTH244APW is a high-speed, low-voltage, octal buffer/driver designed by Texas Instruments. It is part of the LVTH (Low-Voltage Transceiver with High-Speed) family, which is optimized for low-voltage operation while maintaining high-speed performance. Here’s a detailed description of its features and specifications:

General Features:

• Functionality: The SN74LVTH244APW is an octal buffer/driver with 3-state outputs. It is designed to drive capacitive loads and can be used in various applications, including data routing and signal buffering.
• Voltage Range: It operates with a supply voltage (VCC) ranging from 2.0V to 5.5V, making it suitable for both low-voltage and standard logic levels.
• Input/Output Compatibility: The device is compatible with TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels, allowing it to interface with a wide range of digital circuits.

Electrical Characteristics:

• Propagation Delay: The typical propagation delay is low, typically around 3.5 ns at 5V, which allows for fast signal transmission.
• Output Drive Capability: The outputs can drive up to 64 mA, making it capable of driving multiple loads or long traces without significant signal degradation.
• Input Thresholds: The input threshold levels are designed to ensure reliable operation across various voltage levels, with a high input threshold voltage (VIH) and a low input threshold voltage (VIL).

Package and Pin Configuration:

• Package Type: The SN74LVTH244APW is available in a TSSOP (Thin Shrink Small Outline Package) with 20 pins, which provides a compact footprint suitable for space-constrained applications.
• Pin Configuration: The device features eight data inputs (A1 to A8) and eight corresponding outputs (Y1 to Y8), along with two enable inputs (OE1 and OE2) that control the output states. The enable inputs allow for the outputs to be placed in a high-impedance state, facilitating bus-oriented applications.

Applications:

• Data Bus Buffers: The SN74LVTH244APW is commonly used in data bus applications where multiple devices need to communicate without interference.
• Signal Isolation: It can be used to isolate different sections of a circuit, preventing loading effects and ensuring signal integrity.
• Level Shifting: The device can serve as a level shifter between different voltage domains, making it useful in mixed-voltage systems.

Thermal and Reliability:

• Operating Temperature Range: The device is rated for operation over a temperature range of -40°C to +125°C, making it suitable for industrial and automotive applications.
• Power Consumption: The low power consumption of the device, especially in standby mode, contributes to energy-efficient designs.

Conclusion:

The SN74LVTH244APW from Texas Instruments is a versatile and reliable octal buffer/driver that combines high-speed performance with low-voltage operation. Its robust features make it an excellent choice for a wide range of digital applications, ensuring efficient signal management and integrity in modern electronic designs.