74AC86TTR

Overview

The STMicroelectronics 74AC86TTR is a quad exclusive OR gate fabricated using advanced sub-micron silicon gate C2MOS technology. It operates within a supply voltage range of 2V to 6V and features high-speed performance with a typical propagation delay of 4ns at VCC = 5V. The device provides low power dissipation, with a maximum quiescent current of 2μA at 25°C, and offers high noise immunity defined as 28% of VCC. Outputs are capable of driving 50Ω transmission lines with symmetrical impedance, delivering minimum currents of 24mA for both high and low states.

Feature Summary

• Advanced CMOS fabrication utilizing sub-micron silicon gate and double-layer metal wiring for enhanced speed and density.
• Integrated protection circuits on all inputs and outputs providing 2KV ESD immunity against static discharge and transient excess voltage.
• Symmetrical output impedance ensuring balanced propagation delays between high-to-low and low-to-high transitions.

Applications

• High-speed digital logic processing requiring XOR functionality
• Data path switching and parity generation in communication systems
• Driving 50Ω transmission lines in signal integrity critical designs

Procurement Notes

Verify the specific ordering code matches the required package type, as the 74AC86TTR designation corresponds to the TSSOP-14 tube configuration. Confirm that the component meets RoHS3 compliance standards if applicable to your manufacturing requirements. Ensure that the operating temperature range of -55°C to 125°C aligns with your system's environmental specifications before finalizing procurement.

Selection Notes

Select this component when a quad XOR gate is required with AC series speed characteristics and 2V to 6V operational flexibility. It serves as a direct pin and function compatible replacement for standard 74LS86 or 74HC86 devices where higher speed and lower power consumption are necessary. Consider its latch-up immunity and ESD protection capabilities for robust industrial applications.

Part Context

This part belongs to the 74AC family of advanced CMOS logic gates, designed to offer superior performance over standard TTL and HC logic families. The 'TTR' suffix indicates the specific TSSOP-14 packaging format supplied in tubes. As a quad XOR gate, it implements the Boolean function Y=A⊕B across four independent channels within a single integrated circuit.

Replacement Considerations

Direct substitutes include other manufacturers' 74AC86 variants in TSSOP-14 packages. Verify compatibility regarding input/output voltage levels and propagation delays when cross-referencing with competing brands to ensure functional equivalence in existing designs.