74LVC8T245BZX

Overview

The Nexperia 74LVC8T245BZX is an 8-bit dual supply translating transceiver with 3-state outputs, housed in a DHXQFN24 package (SOT8024-1). It supports bidirectional level translation between VCC(A) and VCC(B), both ranging from 1.2 V to 5.5 V. The device features active bus hold circuitry, IOFF for partial power-down, and ESD protection exceeding 4000 V HBM. Operating temperature spans -40 °C to +125 °C.

Feature Summary

• Bidirectional level translation between independent A and B ports
• Active bus hold circuitry maintains valid logic levels on floating inputs
• IOFF circuitry prevents backflow current during partial power-down
• High noise immunity with latch-up performance exceeding 100 mA

Applications

• Partial power-down applications requiring isolation
• Low voltage node translation (1.2 V to 5.0 V)
• Bi-directional data bus interfacing
• Systems with mixed supply voltage domains

Procurement Notes

Verify the specific ordering suffix matches the required thermal enhanced very thin quad flat package without leads. Confirm the temperature range specification aligns with system requirements of -40 °C to +125 °C. Ensure compatibility with the DHXQFN24 footprint dimensions of 2 mm x 4 mm x 0.48 mm during PCB layout validation.

Selection Notes

Select this component when designing systems requiring translation between widely varying low voltage nodes. The dual supply architecture allows independent voltage domains. Consider the extreme thin profile for space-constrained designs. Verify that the active bus hold feature meets signal integrity needs for unused or floating lines.

Part Context

This part belongs to the 74LVC8T245 family of 8-bit dual supply translating transceivers. It shares functional characteristics with other packages like TSSOP24 and DHVQFN24 but utilizes the DHXQFN24 leadless form factor. The device integrates direction control and output enable inputs for precise bus management across different voltage levels.

Replacement Considerations

Public confirmed substitute part numbers: 74LVCH8T245BZ.