SN74ALVC244PW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALVC244PW is an octal buffer and line driver with 3-state outputs manufactured by Texas Instruments. It operates from a supply voltage range of 1.65 V to 3.6 V. The device features two independent 4-bit drivers, each with a separate output-enable (OE) input. When OE is low, data passes from the A inputs to the Y outputs; when high, outputs enter a high-impedance state. Key electrical parameters include a maximum propagation delay of 2.8 ns at 3.3 V, ±24 mA output drive capability, and latch-up performance exceeding 250 mA per JESD 17. It is housed in a 20-pin TSSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight non-inverting buffers organized as two independent 4-bit drivers with separate output-enable controls for flexible bus management.
• Supports low-voltage operation across a wide range from 1.65 V to 3.6 V while maintaining high-speed signal transmission capabilities.
• Features robust ESD protection that exceeds industry standards for human-body, machine-model, and charged-device models.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory module addressing and data bus driving
• Clock distribution and buffering
• Consumer products with portable battery operation

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current Package Option Addendum to confirm the exact packaging type, such as tube or tape-and-reel quantities. Ensure the moisture sensitivity level and peak reflow temperature ratings align with your assembly process requirements. Cross-reference the RoHS compliance status and lead finish specifications to guarantee compatibility with environmental regulations and soldering methods used in your manufacturing workflow.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring low-power consumption and high-speed data transfer within a 1.65 V to 3.6 V supply range. The dual 4-bit configuration allows for independent control of output states, making it suitable for complex bus architectures. Consider the TSSOP-20 package dimensions if space constraints are critical, and ensure the ±24 mA drive strength meets the load requirements of the destination circuitry.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the ALVC logic family, designed for advanced low-voltage CMOS applications. It serves as a general-purpose buffer solution for digital systems transitioning from higher voltage standards to modern low-power environments. The octal configuration consolidates multiple buffer functions into a single compact integrated circuit, simplifying board layout and reducing component count in dense electronic designs.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ALVC244PWR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the output-enable pin function?

When the OE input is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs enter a high-impedance state, effectively disconnecting them from the bus.

What is the recommended method to ensure high-impedance during power-up?

To ensure the high-impedance state during power-up or power-down, the OE pin should be tied to VCC through a pullup resistor. The minimum resistor value is determined by the current-sinking capability of the driver.