74LVCH16245ADL,112

Overview

The 74LVCH16245ADL,112 is a 16-bit bus transceiver with direction pin and 5 V tolerant 3-state outputs. It operates on a supply voltage range of 1.2 V to 3.6 V. The device features two output enables (1 OE and 2 OE) each controlling eight outputs, and two send/receive (1DIR and 2DIR) inputs for direction control. Inputs can be driven from either 3.3 V or 5 V devices, allowing use as translators in mixed voltage environments. Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times. The device is fully specified for partial power down applications using I OFF circuitry, which disables the output to prevent damaging backflow current when powered down.

Feature Summary

• Provides bidirectional level translation between mixed 3.3 V and 5 V environments via overvoltage tolerant inputs.
• Includes active bus hold on data inputs to eliminate the need for external pull-up resistors for unused inputs.
• Features I OFF circuitry that automatically disables outputs to prevent potentially damaging backflow current during partial power-down states.

Applications

• Mixed voltage system interconnects requiring translation between 3.3 V and 5 V logic levels
• Partial power-down applications utilizing I OFF functionality for safe isolation
• Bus architectures requiring direction control without external pull-up components

Procurement Notes

Verify the specific suffix '112' against official Nexperia documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with automotive or industrial temperature ranges if required by the application design. Cross-reference the datasheet revision history for any recent changes to marking or assembly sites that may affect integration.

Selection Notes

Select this component when designing systems that require 16-bit wide data paths with independent direction control. The LVCH series offers lower power consumption compared to standard LVC variants while maintaining 5 V tolerance. Consider the ADL package dimensions for PCB layout constraints and verify that the operating voltage range aligns with the target system's power rails.

Part Context

This part belongs to the Nexperia 74LVCH16245A family of 16-bit bus transceivers. It shares functional similarities with other members like the 74LVC16245ADGG-Q1J but differs in specific package options and commercial versus automotive qualification status. The LVCH variant specifically emphasizes low power dissipation characteristics suitable for battery-operated or energy-efficient designs.

Replacement Considerations

Direct substitutes include the 74LVCH16245ADGG,11 for different packaging requirements. For automotive-grade applications, consider the 74LVC16245ADGG-Q1J. Verify pinout compatibility and electrical parameters before swapping packages within the same logical family.