74LVC16245AEVK

Overview

The Nexperia 74LVC16245AEVK is a 16-bit bus transceiver with 3-state outputs, designed for bidirectional level translation. It operates within a supply voltage range of 1.2 V to 3.6 V and features overvoltage tolerant inputs up to 5.5 V. The device supports propagation delays as low as 1.0 ns at 3.0 V to 3.6 V. It includes IOFF circuitry for partial power-down protection and Schmitt-trigger inputs for noise immunity.

Feature Summary

• Provides bidirectional data transmission between two buses with independent direction control for each byte pair.
• Features IOFF circuitry that disables outputs to prevent damaging backflow currents during partial power-down states.
• Incorporates Schmitt-trigger action on all inputs to ensure tolerance against slow input rise and fall times.

Applications

• Mixed 3.3 V and 5 V environments requiring level translation
• Partial power-down applications utilizing IOFF functionality
• Systems requiring high noise immunity via Schmitt-trigger inputs

Procurement Notes

Verify the specific suffix 'K' against official Nexperia documentation, as standard datasheets list packages like TSSOP48 (ADGG) or TVSOP48 (ADGV). Confirm package type and temperature range availability directly with the manufacturer or authorized distributors, as suffixes often denote specific reel sizes or tape-and-reel configurations not detailed in general functional descriptions.

Selection Notes

Select this component when a 16-bit wide bidirectional interface is required with 5 V tolerance on a lower voltage system. Ensure the application utilizes the IOFF feature if partial power-down scenarios are present. Verify that the operating voltage remains within the 1.2 V to 3.6 V range for optimal performance and that input signals do not exceed the 5.5 V absolute maximum rating.

Part Context

This part belongs to the 74LVC family of CMOS logic devices, specifically the 16245A series of bus transceivers. It is functionally compatible with other 16-bit transceivers in the LVC and LVCH families, though the LVCH variant includes additional bus hold circuitry on data inputs which the standard LVC version lacks.

Replacement Considerations

74LVCH16245A variants offer similar functionality but include bus hold circuits on data inputs. Other 16-bit transceivers from the same family may share pinouts but differ in electrical characteristics or package options.