74ALVC164245DGG,11

Overview

The Nexperia 74ALVC164245DGG,11 is a 16-bit dual supply translating transceiver with 3-state outputs. It operates in a TSSOP48 package (SOT362-1). The device interfaces between 3 V and 5 V buses in mixed voltage environments. Port A (VCC(A)) supports 1.5 V to 3.6 V, while Port B (VCC(B)) supports 1.5 V to 5.5 V. Propagation delay ranges from 1.0 ns to 9.5 ns depending on voltage conditions. Output drive capability reaches ±24 mA. Operating temperature spans -40 °C to +125 °C.

Feature Summary

• Dual supply architecture enabling translation between 3 V and 5 V logic levels
• IOFF circuitry provides partial power-down mode operation preventing backflow current
• Overvoltage tolerant inputs accepting voltages up to 5.5 V for direct TTL interfacing
• High-impedance outputs when either supply voltage is zero

Applications

• Interfacing between 3 V and 5 V buses in mixed supply environments
• Connecting low-voltage microcontrollers to 5 V peripheral devices
• Data flow direction control in bidirectional bus systems

Procurement Notes

Verify the ordering suffix matches the required package type and temperature range. Confirm RoHS compliance status as specified in the latest product data sheet. Ensure the component meets the specific voltage requirements of your application design before procurement.

Selection Notes

Select this component for applications requiring bidirectional level shifting between distinct voltage domains. Verify that the supply voltage constraints are met, specifically ensuring VCC(B) is greater than or equal to VCC(A) during normal operation. Consider the propagation delay specifications relative to system timing requirements.

Part Context

This device belongs to the ALVC logic family, characterized by high performance and low power consumption. It functions as a 16-bit transceiver but can be configured as two independent 8-bit transceivers. The technology utilizes Si-gate CMOS processes to achieve superior speed compared to standard CMOS families.

Replacement Considerations

Check for equivalent part numbers within the same logic family that offer identical pinouts and electrical characteristics. Verify package compatibility if substituting with variants from different manufacturers.