74HCT2G86DC,125

Overview

The Nexperia 74HCT2G86DC,125 is a dual 2-input EXCLUSIVE-OR gate housed in an 8-lead VSSOP package (SOT765-1). It operates within a supply voltage range of 4.5 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. The device features TTL-level input compatibility, CMOS low power dissipation, and high noise immunity. Static characteristics include specific HIGH and LOW level input/output voltage thresholds defined for the HCT logic family. Dynamic performance specifies propagation delay and transition times at 4.5 V, with power dissipation capacitance measured under standard load conditions.

Feature Summary

• Dual 2-input EXCLUSIVE-OR logic function
• TTL-compatible input levels
• ESD protection exceeding specified JEDEC class limits
• Latch-up performance compliant with JESD 78 Class II Level B

Applications

• Digital signal processing circuits requiring XOR functionality
• Logic level translation between TTL and CMOS domains
• Parity generation and checking systems
• Arithmetic logic units performing subtraction or comparison

Procurement Notes

Verify the ordering suffix '125' against current Nexperia documentation to confirm reel quantity and tape specifications. Ensure the VSSOP8 package variant matches the required board footprint dimensions. Confirm that the temperature grade covers the intended operational environment. Cross-reference the marking code 'T86' for visual identification during assembly inspection. Validate compliance with relevant JEDEC standards for ESD and latch-up ratings prior to final design approval.

Selection Notes

Select this component when TTL-level inputs must interface directly with CMOS outputs without external pull-up resistors. The VSSOP8 package offers a compact solution for space-constrained designs compared to larger packages. Consider the operating temperature range if the application involves high ambient heat. Verify that the supply voltage remains strictly within the 4.5 V to 5.5 V window to ensure correct logic threshold behavior. Evaluate power dissipation requirements against the specified dynamic capacitance values.

Part Context

This part belongs to the 74HCT series of high-speed CMOS logic devices, designed for compatibility with TTL logic families. The '2G' designation indicates a dual-gate configuration within a single small outline package. The DC suffix specifically identifies the VSSOP8 plastic very thin shrink small outline package variant. This series is part of Nexperia's broader portfolio of standard logic components aimed at general-purpose digital applications.

Replacement Considerations

The 74HC2G86DC is a compatible alternative but requires CMOS-level input signals rather than TTL levels. Direct substitution is possible only if the driving source meets CMOS voltage thresholds. Verify that the package dimensions and pinout remain identical for PCB re-use.