74HC126D,653

Overview

The Nexperia 74HC126D,653 is a quad buffer and line driver featuring three-state outputs controlled by active-high output enable inputs. It operates within a supply voltage range of 2.0 V to 6.0 V and utilizes the SO14 plastic small outline package (SOT108-1). The device supports an ambient operating temperature from -40 °C to +125 °C. Propagation delay ranges from 9 ns to 30 ns depending on voltage conditions. Input levels adhere to CMOS standards, and the component includes input clamp diodes for interfacing with voltages exceeding VCC.

Feature Summary

• Quad buffer/line driver architecture with independent three-state control
• Wide supply voltage compatibility spanning 2.0 V to 6.0 V
• High noise immunity and robust latch-up performance
• Integrated ESD protection compliant with JEDEC Class 2 and C3 standards

Applications

• Bus-oriented transmissions
• Clock buffering and distribution
• Driving capacitive loads in digital systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct package type and temperature grade. Confirm RoHS compliance status and halogen-free designation prior to final procurement decisions. Cross-reference the full part number with official Nexperia databases to validate availability and revision history.

Selection Notes

Select this component when designing circuits requiring isolated bus driving or high-impedance state management. Ensure the application logic levels match the specified CMOS input thresholds. Verify that the required propagation delay and power dissipation limits fall within the recommended operating conditions provided in the datasheet.

Part Context

This device belongs to the Nexperia 74HC series of high-speed CMOS logic integrated circuits. It functions as a non-inverting buffer with tri-state capability, allowing multiple devices to share a common data bus without signal contention. The 'D' suffix indicates the SO14 surface-mount package configuration.

Replacement Considerations

The 74HCT126D,653 serves as a functional alternative within the same family, offering TTL-compatible input levels instead of CMOS levels while maintaining identical pinout and three-state functionality.