74LVT162245BDL,112

Overview

The Nexperia 74LVT162245BDL,112 is a 3.3 V 16-bit bidirectional bus transceiver with 3-state outputs and integrated 30 Ω termination resistors. It operates within a supply voltage range of 2.7 V to 3.6 V and features overvoltage tolerant inputs up to 5.5 V. The device supports BiCMOS high-speed performance with output capabilities of +12 mA/-12 mA. It includes bus-hold data inputs to eliminate external pull-up resistors and IOFF circuitry for partial power-down mode operation.

Feature Summary

• Integrated 30 Ω series termination resistors on all outputs to minimize signal reflections without external components
• Bus-hold data inputs maintain unused or floating inputs at valid logic levels, removing the need for external pull-up resistors
• IOFF circuitry disables outputs during partial power-down to prevent potentially damaging backflow current
• Outputs remain in a high-impedance OFF-state during power-up to ensure safe system initialization

Applications

• High-speed memory interface circuits requiring controlled impedance termination
• Mixed voltage systems connecting 3.3 V logic to 5 V tolerant buses
• Data acquisition systems utilizing live insertion or extraction protocols

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the datasheet indicates revisions may remove certain package variants like SSOP48. Confirm that the component meets the JEDEC JESD8C standard for the intended operating voltage range. Ensure design safeguards account for the specified latch-up performance limits under all operating conditions.

Selection Notes

Select this component when designing 3.3 V bi-directional interfaces that require built-in termination to reduce board space and component count. It is suitable for applications needing direct TTL level interfacing and robust ESD protection exceeding 2000 V HBM. Consider the BiCMOS technology for higher drive strength compared to standard CMOS alternatives in similar voltage ranges.

Part Context

This device belongs to the 74LVT logic family, designed for low-voltage 3.3 V applications. It serves as a bridge between different voltage domains while maintaining signal integrity through internal termination. The product line emphasizes high speed and low power consumption, complying with industry standards for electrostatic discharge immunity and latch-up resistance.

Replacement Considerations

Check for updated package availability, as previous versions included SSOP48 which has been removed from the current specification. Verify pin compatibility if substituting with other 16-bit transceivers, noting differences in termination resistor integration and bus-hold functionality.