74LVC162244ADGGRG4

Overview

The SN74LVC162244A is a 16-bit buffer and driver featuring three-state outputs, designed for operation within a supply voltage range of 1.65 V to 3.6 V. It supports mixed-mode signal environments by accepting input voltages up to 5.5 V while operating at lower core voltages. The device includes integrated series resistors in the output ports to minimize signal overshoot and undershoot without requiring external components. It offers symmetrical active-low output-enable inputs and provides Ioff circuitry to prevent backflow current during partial power-down states.

Feature Summary

• Supports mixed-mode signal operation with 5-V tolerant inputs compatible with 3.3-V or 5-V driving devices
• Includes equivalent 26-ohm series resistors in output ports to reduce signal ringing
• Provides Ioff circuitry for live insertion and back drive protection during partial power-down
• Configurable as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer

Applications

• Motor drive systems
• Network switch interfaces
• Power infrastructure control
• Test and measurement equipment

Procurement Notes

Verify the specific package variant (TSSOP, TVSOP, or SSOP) matches the target PCB footprint. Confirm that the ordering suffix corresponds to the required tape-and-reel quantity or tube packaging. Ensure the component meets RoHS compliance requirements if mandated by the assembly process. Cross-reference the manufacturer's latest orderable addendum to confirm current production status and availability before finalizing procurement.

Selection Notes

Select this component when interfacing between 5-V logic domains and 1.65-V to 3.6-V systems requiring high-density bus buffering. The integrated output resistance simplifies layout by eliminating external series resistors. Ensure the design accommodates the four independent output enable pins for granular bus isolation. Verify that the operating temperature range of -40°C to 125°C aligns with the environmental constraints of the application.

Part Context

This device belongs to Texas Instruments' Widebus family, optimized for high-density digital applications. It serves as a translator and buffer in multi-power system environments. The architecture allows flexible configuration of the 16-bit data path into smaller segments for targeted control. It is engineered to improve performance in memory address drivers, clock distribution, and bus-oriented receivers.

Replacement Considerations

Direct functional substitutes include other members of the SN74LVC162244 family with identical pinouts and electrical characteristics. Verify compatibility regarding package dimensions and thermal dissipation capabilities when swapping between TSSOP, TVSOP, and SSOP variants. Ensure any replacement maintains the 5.5-V input tolerance and 1.65-V minimum supply voltage specifications.