74LVC8T245PW-Q100J

Overview

The Nexperia 74LVC8T245PW-Q100J is an 8-bit dual supply translating transceiver with 3-state outputs, housed in a 24-lead TSSOP package (SOT355-1). It supports bidirectional level translation between any low voltage nodes ranging from 1.2 V to 5.5 V on both ports A and B. The device features separate supply pins VCC(A) and VCC(B), direction control via DIR, and active-low output enable OE. It includes IOFF circuitry for partial power-down applications and bus hold functionality to maintain valid logic levels on floating inputs.

Feature Summary

• Bidirectional level translation between independent dual supply domains
• IOFF circuitry prevents damaging backflow current during partial power-down
• Active bus hold circuitry maintains unused or floating data inputs at valid logic levels
• Automotive qualification compliant with AEC-Q100 Grade 1 standards

Applications

• Partial power-down mode operation in mixed-voltage systems
• Bi-directional data translation between different low voltage nodes
• Automotive electronic applications requiring Grade 1 qualification

Procurement Notes

Verify the specific ordering suffix matches the required automotive grade and package variant. Confirm that the PW designation corresponds to the TSSOP24 plastic thin shrink small outline package. Ensure the Q100J suffix aligns with the specified temperature range of -40 °C to +125 °C before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring isolated dual-supply translation between 1.2 V and 5.5 V domains. The inclusion of bus hold circuits makes it suitable for interfaces where inputs may float. Verify that the TSSOP24 package dimensions fit the PCB layout constraints and that the thermal dissipation characteristics meet the system's power budget requirements.

Part Context

This part belongs to the 74LVC(LVCH)8T245-Q100 family of 8-bit translating transceivers. It shares functional similarities with other members like the 74LVCH8T245PW-Q10J but is specifically designated as the LVC variant within the automotive qualified lineup. The family provides flexible voltage translation capabilities across various low voltage standards.

Replacement Considerations

The 74LVCH8T245PW-Q10J is a related member of the same family offering similar translation functions. Both parts utilize the TSSOP24 package and support dual supply voltages. Designers should verify if the specific LVCH bus hold characteristics or exact electrical parameters match the original design requirements.