74LVC8T245BQ-Q100J

Overview

The Nexperia 74LVC8T245BQ-Q100J is an 8-bit dual supply translating transceiver with 3-state outputs, designed for bidirectional level translation. It features two data ports (An and Bn), a direction control input (DIR), and an output enable input (OE). Both VCC(A) and VCC(B) support voltages from 1.2 V to 5.5 V, enabling translation between low voltage nodes such as 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V. The device includes IOFF circuitry for partial power-down applications and operates within a temperature range of -40 °C to +125 °C.

Feature Summary

• Automotive product qualification in accordance with AEC-Q100 Grade 1 standard
• IOFF circuitry provides partial power-down mode operation preventing backflow current
• DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI)
• Wide supply voltage range supporting 1.2 V to 5.5 V on both ports

Applications

• Automotive electronic systems requiring AEC-Q100 Grade 1 components
• Bidirectional level translation between mixed voltage logic nodes
• Partial power-down applications utilizing IOFF functionality

Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the DHVQFN24 package with side-wettable flanks aligns with the automated optical inspection requirements of the assembly line. Ensure the automotive grade qualification meets the specific project standards before finalizing procurement orders.

Selection Notes

Select this component when bidirectional translation between varying low voltage domains is required in automotive environments. The dual supply capability allows flexible interface design across multiple voltage levels. Verify that the thermal performance and package dimensions fit the PCB layout constraints for the DHVQFN24 form factor.

Part Context

This part belongs to the 74LVC8T245-Q100 family of 8-bit dual supply translating transceivers. It shares functional characteristics with other variants in the series but is distinguished by its specific DHVQFN24 packaging. The family supports various package options including TSSOP24, catering to different space and manufacturing needs while maintaining consistent electrical performance.

Replacement Considerations

The 74LVCH8T245BQ-Q100 serves as a direct replacement within the same family, offering identical pinout and functionality. Ensure the active bus hold feature of the LVCH variant does not interfere with existing floating input handling in the design.