HEF40244BT-Q100J

Overview

The HEF40244BT-Q100J is an octal buffer and line driver featuring three-state outputs, manufactured by Nexperia. It operates within a supply voltage range of 3 V to 15 V and supports an ambient temperature range from -40 °C to +85 °C. The device contains two independent four-bit buffers controlled by separate output enable inputs (EOA and EOB). It utilizes CMOS technology for low power dissipation and includes input clamp diodes to facilitate interfacing with voltages exceeding VCC through current-limiting resistors.

Feature Summary

• Automotive qualification in accordance with AEC-Q100 Grade 3 standard
• Dual control via active-low output enable inputs for high-impedance OFF-states
• High noise immunity and electrostatic discharge protection capabilities

Applications

• Automotive electronic systems requiring qualified logic components
• Bus-oriented transmission applications
• Clock distribution circuits

Procurement Notes

Verify the specific suffix J against the manufacturer's official ordering information to confirm packaging details such as reel or cut tape specifications. Ensure the component meets the required AEC-Q100 Grade 3 automotive qualification standards for your specific design implementation. Cross-reference the SO20 package dimensions with your PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing systems that require eight buffered signals with controllable high-impedance states. It is suitable for applications needing wide supply voltage flexibility between 3 V and 15 V. Consider its automotive qualification if the target environment demands compliance with AEC-Q100 Grade 3 standards. Verify input compatibility with existing logic levels and ensure adequate thermal management for the specified operating temperature range.

Part Context

This part belongs to the HEF40244B-Q100 family of octal buffers with three-state outputs produced by Nexperia. It is designed for robust performance in demanding environments, specifically targeting automotive applications due to its AEC-Q100 Grade 3 qualification. The device integrates CMOS technology to provide efficient signal buffering while maintaining low power consumption characteristics typical of the 4000B series logic family.

Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the same family. Verify functional equivalence regarding propagation delays and output drive capabilities when substituting with other octal buffer devices. Ensure any replacement maintains the required three-state functionality and automotive qualification status.