74LVCH16245ADGG,51

Overview

The Nexperia 74LVCH16245ADGG,51 is a 16-bit bus transceiver with 3-state outputs housed in a 48-lead TSSOP package (SOT362-1). It operates on a supply voltage range of 1.2 V to 3.6 V and features overvoltage tolerant inputs up to 5.5 V. The device includes two output enables and two direction control inputs, allowing configuration as one 16-bit or two 8-bit transceivers. It incorporates IOFF circuitry for partial power-down protection and active bus hold on data inputs.

Feature Summary

• Active bus hold circuitry on all data inputs eliminates the need for external pull-up resistors.
• IOFF circuitry disables outputs during partial power-down to prevent damaging backflow current.
• Schmitt-trigger action at all inputs provides tolerance for slower input rise and fall times.

Applications

• Mixed 3.3 V and 5 V environments
• Partial power-down applications

Procurement Notes

Verify the specific ordering suffix ',51' against official Nexperia documentation to confirm tape-and-reel packaging specifications. Ensure the component matches the automotive qualification requirements if applicable, as standard variants may differ from qualified versions. Confirm the package type corresponds to SOT362-1.

Selection Notes

Select this variant when active bus holding is required to manage floating inputs without external components. The LVCH series is appropriate for designs needing Schmitt-trigger inputs and low power dissipation within the 1.2 V to 3.6 V supply range. Verify that the 48-TSSOP footprint fits the PCB layout constraints.

Part Context

This component belongs to the 74LVC/LVCH family of 16-bit bus transceivers. It shares functional similarities with the 74LVC16245A but includes the 'H' designation indicating the presence of bus hold features on the data inputs. It utilizes a standard MULTIBYTE flow-through pin-out architecture compatible with industry-standard interfaces.

Replacement Considerations

The 74LVC16245ADGG is a non-bus-hold equivalent. The 74LVCH16245ADGV offers the same functionality in a TVSOP48 package. Verify electrical compatibility before substituting.