74LVT162245BDL,118

Overview

The 74LVT162245BDL,118 is a 3.3 V 16-bit bidirectional bus transceiver with 3-state outputs and integrated 30 Ω series termination resistors. It operates within a supply voltage range of 2.7 V to 3.6 V and supports overvoltage tolerant inputs up to 5.5 V. The device features BiCMOS technology for high-speed performance and direct interface with TTL levels. It includes bus-hold data inputs to eliminate external pull-up resistors and IOFF circuitry for partial power-down mode operation. The component is specified for ambient temperatures from -40 °C to +85 °C.

Feature Summary

• Integrated 30 Ω series termination resistors on all outputs to minimize signal reflections without external components
• Bus-hold data inputs maintain defined logic states for unused pins, removing the need for external pull-up resistors
• IOFF circuitry enables partial power-down mode by disabling outputs to prevent damaging backflow currents
• Overvoltage tolerant inputs allow safe interfacing with 5 V systems while operating at lower supply voltages

Applications

• Mixed 3.3 V and 5 V system interconnects requiring level translation
• High-speed bidirectional bus interfaces in telecommunications infrastructure
• Industrial control systems needing live insertion/extraction support
• Test equipment utilizing multi-byte flow-through architectures

Procurement Notes

Verify the specific package variant against the datasheet revision history. Note that version 4 of the datasheet explicitly removed the DL (SSOP48) type number, retaining only the DGG (TSSOP48) variant. Confirm current manufacturing status and package availability directly with Nexperia or authorized distributors to ensure the ordered part matches the required physical footprint and pin configuration.

Selection Notes

Select this component when designing 3.3 V logic systems requiring integrated source termination to improve signal integrity on long traces. It is suitable for applications demanding direct TTL compatibility and overvoltage tolerance. Ensure the design accounts for the specific 30 Ω internal resistance values and verify that the 16-bit width aligns with the bus architecture requirements.

Part Context

This device belongs to the LVT logic family, designed for low-voltage 3.3 V applications. It serves as a bridge between different voltage domains in mixed-signal environments. The inclusion of termination resistors distinguishes it from standard transceivers, offering a simplified layout for high-speed digital buses where impedance matching is critical for data reliability.

Replacement Considerations

Datasheet revision 4 indicates the removal of the 74LVT162245BDL (SSOP48) type number. Designers requiring this specific package should consult Nexperia for current availability or consider the 74LVT162245BDGG (TSSOP48) equivalent if the form factor permits.