74LVCH16244ADL,118

Overview

The Nexperia 74LVCH16244ADL,118 is a 16-bit buffer and line driver featuring 3-state outputs. It supports a wide supply voltage range from 1.2 V to 3.6 V and provides 5 V tolerant inputs and outputs for interfacing with 5 V logic systems. The device includes IOFF circuitry for partial power-down mode operation and Schmitt-trigger action at all inputs to tolerate slower rise and fall times. It operates within an ambient temperature range of -40 °C to +125 °C.

Feature Summary

• Features 5 V tolerant inputs and outputs for direct interfacing with 5 V logic devices in mixed-voltage environments.
• Includes IOFF circuitry that disables outputs to prevent damaging backflow current during partial power-down applications.
• Incorporates Schmitt-trigger action at all data inputs to ensure tolerance against slow input signal transitions.
• Provides bus hold functionality on all data inputs to eliminate the need for external pull-up resistors.

Applications

• Mixed 3.3 V and 5 V system translation
• Partial power-down mode operation
• High-impedance state buffering

Procurement Notes

Verify the specific package type required, as the ADL suffix typically denotes SSOP. Confirm that the ordering information matches the latest datasheet revision, noting that older revisions may list this package while newer ones might specify TSSOP or TVSOP variants. Ensure compatibility with the intended operating temperature range and voltage levels before procurement.

Selection Notes

Select this component when designing circuits requiring 16-bit buffering with 5 V tolerance. It is suitable for applications needing low power consumption and high-impedance states. Consider the LVCH variant specifically for its integrated bus hold feature, which simplifies PCB layout by removing the need for external pull-up components on unused inputs.

Part Context

This part belongs to the 74LVC/LVCH family of logic ICs manufactured by Nexperia. These devices are designed for low-voltage CMOS applications. The 74LVCH16244A variant specifically adds bus hold capabilities compared to the standard 74LVC16244A, enhancing noise immunity and simplifying interface design for floating inputs.

Replacement Considerations

The 74LVC16244ADL serves as the non-bus-hold equivalent. For packages other than SSOP, consider the 74LVCH16244ADGG (TSSOP) or 74LVCH16244ADGV (TVSOP). Verify pinout compatibility and electrical specifications when substituting.