74AC04TTR

Overview

The STMicroelectronics 74AC04TTR is a hex inverter integrated circuit fabricated using advanced sub-micron silicon gate and double-layer metal wiring C2MOS technology. It operates within a supply voltage range of 2V to 6V, featuring high-speed performance with a typical propagation delay of 4ns at VCC = 5V. The device provides symmetrical output impedance with source/sink currents of 24mA minimum. It includes protection circuits against static discharge, offering 2kV ESD immunity. The component is housed in a TSSOP-14 package.

Feature Summary

• Advanced high-speed CMOS architecture utilizing sub-micron silicon gate and double-layer metal wiring technology for enhanced performance.
• High noise immunity with balanced propagation delays and capability for 50Ω transmission line driving.
• Integrated protection circuits providing 2kV ESD immunity against static discharge and transient excess voltage on all inputs and outputs.

Applications

• General-purpose logic inversion in digital circuits
• Clock signal generation and conditioning
• Signal buffering and level shifting

Procurement Notes

Verify the specific ordering code matches the required package type, as the 74AC04 series is available in DIP, SOP, and TSSOP configurations. Confirm that the TSSOP variant aligns with your PCB footprint requirements. Ensure compliance with RoHS standards if applicable to your manufacturing process. Check for any specific environmental or handling instructions provided in the official datasheet before finalizing procurement.

Selection Notes

Select this component when high-speed operation and low power dissipation are critical. The 74AC04TTR offers improved latch-up immunity compared to older technologies. Consider the operating temperature range of -55°C to 125°C for industrial applications. Verify that the input voltage levels are compatible with your system's logic family. The symmetrical output drive capability makes it suitable for driving moderate capacitive loads.

Part Context

The 74AC04 belongs to the AC series of hex inverters, designed as an advanced replacement for standard 74-series logic. It maintains pin and function compatibility with legacy devices while offering superior speed and lower power consumption. The TTR suffix indicates the TSSOP-14 surface-mount package configuration, distinguishing it from through-hole DIP or standard SOIC variants within the same logical family.

Replacement Considerations

Direct replacements include other manufacturers' 74AC04 parts such as those from Fairchild Semiconductor or Texas Instruments, provided they meet the same electrical specifications and package dimensions. Ensure substitute components support the 2V to 6V operating range and offer comparable propagation delays and noise immunity.