74ALVTH162245LRG4

Overview

The SN74ALVTH162245LRG4 is a 16-bit bus transceiver from Texas Instruments' ALVTH series, designed for 2.5-V to 3.3-V VCC operation. It features three-state outputs and bidirectional data flow controlled by a direction signal. The device utilizes a TVSSOP-48 package with a maximum propagation delay of 3.5 ns at 3.3 V. It supports LVTTL input levels and provides high drive capability with low output impedance, ensuring signal integrity in high-speed digital systems operating within the specified voltage range.

Feature Summary

• Supports bidirectional data transmission between two buses with common control
• Designed for 2.5-V to 3.3-V power supply operation
• Features three-state outputs to prevent bus contention
• Accepts LVTTL-compatible input logic levels

Applications

• High-speed data bus architectures requiring level shifting
• Memory interface circuits in consumer electronics
• Industrial control systems with mixed voltage domains
• Communication modules requiring bidirectional data transfer

Procurement Notes

Verify the exact suffix 'RG4' corresponds to the TVSSOP-48 package and RoHS compliance status as per the manufacturer's current datasheet. Confirm that the 'L' variant matches the specific pinout and thermal characteristics required for your PCB layout. Cross-reference the ordering part number with official Texas Instruments documentation to ensure availability and correct revision history before finalizing procurement orders.

Selection Notes

Select this component when designing systems operating strictly between 2.5 V and 3.3 V. It is suitable for applications requiring faster switching speeds than standard LVTH devices but do not require the wider voltage tolerance of LVC or ALVC families. Ensure the load capacitance requirements are met to maintain the specified propagation delays. Verify that the input voltage levels of the driving source are compatible with LVTTL standards.

Part Context

This part belongs to the SN74ALVTH162245 family of 16-bit bus transceivers. It shares functional similarities with other members like the SN74LVTH162245 but offers optimized performance for lower voltage supplies. The device is part of Texas Instruments' broader portfolio of logic ICs focused on high-density, high-speed data transfer solutions for modern electronic designs.

Replacement Considerations

Direct substitutes include the SN74ALVTH162245DGGR (TSSOP-48) if package compatibility allows. For pin-compatible alternatives in different packages, consider the SN74LVTH162245 series, noting potential differences in drive strength and voltage ranges. Always verify electrical parameters against the original design requirements before swapping components.