SN74ALB16244DGVR

Overview

The SN74ALB16244DGVR is a 16-bit buffer and line driver with 3-state outputs, manufactured by Texas Instruments. It utilizes Advanced Low-Voltage BiCMOS (ALB) technology designed for 3.3-V operation. The device features Schottky diodes on all inputs to eliminate overshoot and undershoot. It operates within a supply voltage range of 3 V to 3.6 V and an operating temperature range of -40°C to 85°C. Propagation delay is typically 1.3 ns at 3.3 V. High-level output current is -25 mA, and low-level output current is 25 mA.

Feature Summary

• Advanced Low-Voltage BiCMOS (ALB) technology optimized for high-speed, low-voltage 3.3-V applications.
• Schottky diodes integrated on all inputs to prevent signal overshoot and undershoot.
• Flow-through architecture designed to optimize printed circuit board layout efficiency.
• Distributed VCC and GND pins implemented to minimize high-speed switching noise.

Applications

• High-speed data bus buffering
• Clock distribution networks
• Memory interface drivers

Procurement Notes

Verify the specific ordering suffix DGVR corresponds to the TSSOP-48 tape and reel package configuration. Confirm that the component status aligns with project requirements, as availability may vary. Ensure compatibility with the target 3.3-V logic family and verify thermal management needs for the selected package type during integration.

Selection Notes

Select this component when designing systems requiring 16-bit parallel data buffering with high-speed performance at 3.3 V. The ALB technology offers superior speed compared to standard CMOS alternatives. Consider the flow-through pinout for simplified PCB routing in dense layouts. Verify input/output voltage levels match the connected logic families to ensure proper signal integrity.

Part Context

This device belongs to Texas Instruments' Widebus family of logic components. It serves as a high-performance alternative to conventional drivers in speed-critical paths. The SN74ALB16244 provides symmetrical active-low output-enable inputs and true outputs, supporting configurations such as four 4-bit buffers or two 8-bit buffers.

Replacement Considerations

SN74ALB16244DLR

FAQ

What is the function of the Schottky diodes on the inputs?

The Schottky diodes are included to eliminate overshoot and undershoot on the input signals, ensuring reliable operation during high-speed transitions.

How does the flow-through architecture benefit PCB design?

The flow-through architecture optimizes PCB layout by allowing signals to pass through the device in a linear fashion, reducing trace length and complexity.