74LVCH245ABQ,115

Overview

The Nexperia 74LVCH245ABQ,115 is an octal bus transceiver with 3-state outputs in a DHVQFN20 package. It operates on a supply voltage range of 1.2 V to 3.6 V and features overvoltage tolerant inputs up to 5.5 V. The device includes Schmitt-trigger action for slow input transitions and bus hold circuitry on all data inputs. It supports partial power-down via IOFF circuitry and complies with JEDEC standards for various voltage levels.

Feature Summary

• Bus hold circuitry on all data inputs
• IOFF circuitry for partial power-down mode operation
• Schmitt-trigger action at all inputs

Applications

• Mixed 3.3 V and 5 V environments
• Partial power down applications
• Octal bus transmission systems

Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature range. Confirm that the DHVQFN20 footprint aligns with the PCB layout design. Ensure the application environment stays within the specified supply voltage limits to maintain device reliability and performance characteristics.

Selection Notes

Select this component when an 8-bit bidirectional translator is needed with low power consumption. The LVCH variant provides bus hold functionality, unlike the standard LVC version. Verify compatibility with system voltage levels, as inputs tolerate up to 5.5 V while operating from 1.2 V to 3.6 V.

Part Context

This part belongs to the 74LVC/LVCH245A family of octal bus transceivers. It shares functional similarities with other variants like the 74LVC245ABQ but differs in having integrated bus hold circuitry. The DHVQFN20 package offers a compact solution for space-constrained designs requiring thermal enhancement.

Replacement Considerations

The 74LVC245ABQ,115 serves as a direct substitute if bus hold functionality is not required. Other packages such as SO20 or TSSOP20 offer pin-compatible alternatives for different mounting requirements.