74HCT244PW-Q100,11

Overview

The Nexperia 74HCT244PW-Q100,11 is an octal buffer and line driver with three-state outputs, designed for automotive applications. It operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL input levels. The device features two independent output enable inputs (1OE and 2OE), each controlling four outputs. It is housed in a TSSOP20 package (SOT360-1) and is qualified to AEC-Q100 Grade 1 standards. The component functions as non-inverting buffers or line drivers, providing high noise immunity and low power dissipation.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• Octal bus interface with non-inverting three-state outputs
• TTL input logic levels compatible with standard digital systems
• Dual output enable controls allowing flexible bus configuration

Applications

• Automotive electronic systems requiring robust signal buffering
• Octal bus interface architectures in vehicle control units
• Line driving applications for long-distance signal transmission
• Mixed voltage environments utilizing TTL-compatible inputs

Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the AEC-Q100 Grade 1 qualification aligns with project reliability requirements. Ensure the operating temperature range specifications meet environmental constraints. Cross-reference the pinout diagram with PCB layout designs to prevent connection errors during assembly.

Selection Notes

Select this component when an octal buffer with three-state capability is required for automotive-grade designs. The TTL input threshold makes it suitable for interfacing with legacy digital logic families. Consider the TSSOP20 package dimensions for space-constrained board layouts. Evaluate the dual enable lines for complex bus arbitration scenarios requiring independent channel control.

Part Context

This part belongs to the Nexperia 74HCT244-Q100 family, which includes variants such as the SO20 and DHVQFN20 packages. The HCT logic series specifically targets TTL compatibility while maintaining CMOS performance characteristics. The Q100 designation indicates automotive qualification, distinguishing it from standard commercial grade counterparts within the same functional architecture.

Replacement Considerations

Direct substitutes include other 74HCT244 variants from different manufacturers that meet AEC-Q100 Grade 1 standards. Verify pin-to-pin compatibility and identical electrical characteristics before substitution. Ensure the replacement maintains the same TSSOP20 footprint and thermal properties.