SN74ALVTH162827DL

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALVTH162827DL is a 20-bit buffer and line driver manufactured by Texas Instruments. It operates at supply voltages of 2.5 V or 3.3 V, with inputs capable of tolerating 5-V signals for mixed-mode system support. The device features two independent 10-bit sections, each with separate output-enable controls. Outputs are designed to sink up to 12 mA and include equivalent 30-Ω series resistors to minimize signal overshoot and undershoot. The component utilizes Advanced BiCMOS technology to achieve low static power dissipation while maintaining high-speed performance.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation by interfacing 5-V input systems with 2.5-V or 3.3-V logic environments
• Incorporates active bus-hold circuitry on data inputs to maintain valid logic levels without external pullup or pulldown resistors
• Provides high-impedance outputs during power-up and power-down states to prevent driver conflicts and permit live insertion
• Features Auto3-State functionality that eliminates bus current loading when the output voltage exceeds the supply voltage plus 0.5 V

Buffers, Drivers, Receivers, Transceivers Applications

• High-density memory buffering in mixed-voltage architectures
• Clock distribution networks requiring controlled slew rates
• Data bus drivers connecting 5-V controllers to lower-voltage peripherals
• Parallel interface buffers where flow-through architecture simplifies PCB layout

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant against the datasheet, as the DL designation corresponds to the SSOP-56 plastic shrink small-outline package. Confirm the operational temperature range requirements match the SN74 family specifications (-40°C to +85°C) rather than the military-grade SN54 variants. Ensure all unused control inputs are tied to defined logic levels to guarantee proper device operation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require driving large parallel buses across different voltage domains. The integrated 30-Ω series resistors reduce the need for external components, simplifying the bill of materials. Consider the dual 10-bit section structure if independent control over half-bus segments is necessary for timing or power management purposes.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the ALVTH logic family, which combines the speed of ABT technology with low-voltage compatibility. It is part of a broader portfolio of widebus buffers designed for high-pin-count applications. The SN74ALVTH162827 serves as the commercial-grade counterpart to the SN54ALVTH162827, sharing identical electrical characteristics but differing in the specified operating temperature range.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct functional substitutes within the same family include the SN74ALVTH16245 and SN74ALVTH16244. Verify pinout compatibility and ensure the replacement supports the required 5-V input tolerance and 12-mA output drive capability.