74LVCH16244ADGG-QJ

Overview

The Nexperia 74LVCH16244ADGG-QJ is a 16-bit buffer and line driver featuring 3-state outputs, designed for automotive applications with AEC-Q100 Grade 1 qualification. It operates on a supply voltage range of 1.2 V to 3.6 V and supports inputs driven by 3.3 V or 5 V devices, enabling translation in mixed-voltage environments. The device includes four output enables (1OE, 2OE, 3OE, 4OE) controlling four outputs each, IOFF circuitry for partial power-down protection, and bus hold functionality on all data inputs.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for reliable operation in vehicle electronics.
• Integrated IOFF circuitry prevents damaging backflow currents during partial power-down scenarios.
• Bus hold feature on data inputs eliminates the need for external pull-up resistors for unused lines.
• Schmitt-trigger inputs provide tolerance for slower rise and fall times while ensuring direct TTL interface compatibility.

Applications

• Automotive electronic systems requiring robust signal buffering and level shifting.
• Mixed 3.3 V and 5 V logic environments serving as voltage translators.
• Partial power-down applications utilizing IOFF circuitry for safe state management.

Procurement Notes

Verify that the specific suffix QJ corresponds to the TSSOP48 package variant documented under part number 74LVCH16244ADGG-Q100. Confirm the required operating temperature range matches the specified -40 °C to +125 °C limits. Ensure design compliance with AEC-Q100 Grade 1 requirements before finalizing procurement specifications.

Selection Notes

Select this component when designing automotive circuits necessitating 16-bit buffering with 5 V tolerant inputs. The inclusion of bus hold features simplifies PCB layout by removing external pull-ups. Verify that the 1.2 V to 3.6 V supply range aligns with system power rails and that the TSSOP48 package fits the available footprint constraints.

Part Context

This device belongs to the Nexperia 74LVC/LVCH family of high-speed CMOS logic buffers. It shares functional similarities with other 16-bit drivers but is distinguished by its specific automotive qualification and integrated bus hold capabilities. The ADGG suffix indicates the plastic thin shrink small outline package configuration used in this product line.

Replacement Considerations

The 74LVCH16244ADGG-Q100 serves as the primary verified equivalent. Ensure any substitute maintains AEC-Q100 Grade 1 certification and identical pinout compatibility for direct replacement in existing automotive designs.