74LVCH16244ABX,518

Overview

The Nexperia 74LVCH16244ABX,518 is a 16-bit buffer and line driver featuring 3-state outputs. It operates within a supply voltage range of 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 on all inputs to tolerate slower rise and fall times. All data inputs feature bus hold functionality.

Feature Summary

• Provides 5 V tolerant inputs and outputs for direct interfacing with 5 V logic devices
• Includes IOFF circuitry to disable outputs and prevent backflow current during partial power-down
• Features Schmitt-trigger action at all inputs to ensure tolerance of slow input transition rates
• Integrates bus hold circuits on all data inputs to eliminate the need for external pull-up resistors

Applications

• Mixed 3.3 V and 5 V environment translation
• Buffering high-speed data buses
• Line driving applications requiring 3-state control

Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature range. Confirm that the component meets the necessary JEDEC standards for the intended operating voltage. Ensure that the design accounts for the specified ESD protection levels and thermal dissipation requirements under maximum load conditions.

Selection Notes

Select this component when a 16-bit non-inverting buffer with 5 V tolerance is required. The LVCH variant specifically offers bus hold on data inputs, unlike the standard LVC version. Consider the available package options and verify that the operating temperature range aligns with the system's environmental constraints.

Part Context

This part belongs to the Nexperia 74LVC/LVCH family of low-voltage CMOS logic devices. These components are designed for high-speed operations while maintaining low power consumption. The 16244A series specifically functions as a buffer or line driver, providing signal integrity in digital communication paths.

FAQ

Does the 74LVCH16244ABX have bus hold on its control inputs?

No, the bus hold circuit is valid only for data inputs. Control inputs do not have a bus hold circuit.

How does the IOFF circuitry function?

The IOFF circuitry disables the output when the device is powered down, preventing potentially damaging backflow current through the device.