74ALVC164245DL,112

Overview

The Nexperia 74ALVC164245DL,112 is a 16-bit dual supply translating transceiver with non-inverting 3-state outputs. It interfaces between 3 V and 5 V buses in mixed voltage environments. The device supports two independent 8-bit channels or one 16-bit channel. Supply voltage ranges are 1.5 V to 3.6 V for Port A and 1.5 V to 5.5 V for Port B. Propagation delay is typically 2.9 ns at maximum speed conditions. 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
• High-impedance outputs when either supply voltage is zero
• Overvoltage tolerant inputs accepting voltages up to 5.5 V

Applications

• Mixed 3 V and 5 V bus interfacing
• System memory mapping
• Control signal routing

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm package type and temperature range. The DL suffix indicates an SSOP package which was removed from the standard product data sheet in revision 11; ensure compatibility with design requirements before procurement.

Selection Notes

Select this component for designs requiring bidirectional level shifting between 3 V and 5 V domains. Ensure VCC(B) is greater than or equal to VCC(A) during normal operation. Verify that the required propagation delay meets system timing constraints under the specific operating voltage conditions.

Part Context

This device belongs to the 74ALVC family of high-performance CMOS logic devices. It features low power consumption and operates at speeds superior to most advanced CMOS compatible TTL families. The component is designed for applications requiring reliable data transfer across different voltage domains.

Replacement Considerations

The 74ALVC164245DGG variant offers the same functionality in a TSSOP48 package.