74ACT14TTR

Overview

The M74ACT14TTR is a Hex Schmitt Inverter manufactured by STMicroelectronics, utilizing sub-micron silicon gate and double-layer metal wiring C2MOS technology. It features six independent inverting channels with Schmitt trigger inputs for high noise immunity. The device operates within a supply voltage range of 2V to 5.5V, though recommended operating conditions specify 4.5V to 5.5V. It provides symmetrical output impedance with minimum drive currents of 24mA. Typical propagation delay is 7.2ns at 5V. The component is housed in a TSSOP-14 package.

Feature Summary

• Advanced high-speed CMOS architecture with sub-micron silicon gate fabrication
• Schmitt trigger input function ensures stable output for slow rise/fall signals
• High noise immunity through internal three-stage circuit design
• Direct interface capability with TTL, NMOS, and CMOS systems

Applications

• Line receivers requiring hysteresis for signal conditioning
• Interfaces between High Speed CMOS and TTL/NMOS logic families
• Transmission line driving applications with 50Ω impedance
• Systems requiring improved latch-up immunity

Procurement Notes

Verify the obsolete status of this specific part number before procurement planning. Confirm if replacement components are available from STMicroelectronics or third-party distributors. Ensure that any substitute devices maintain pin compatibility and electrical specifications suitable for the original design requirements.

Selection Notes

Select this component for designs requiring hex inversion with Schmitt trigger characteristics. Consider the 2V to 5.5V operating range and 24mA output drive capability. Verify thermal performance within the -55°C to 125°C range. Check for availability of alternative packages such as DIP or SOP if TSSOP is unsuitable.

Part Context

This device belongs to the 74ACT series of advanced high-speed CMOS logic ICs. It shares functional compatibility with the standard 74 Series 14 logic family while offering superior speed and lower power dissipation compared to equivalent Bipolar Shottky TTL devices. The technology combines the benefits of CMOS low power with AC-level speed performance.

Replacement Considerations

SN74ACT14PWR (Texas Instruments)

FAQ

What is the typical propagation delay of the 74ACT14TTR?

The typical propagation delay is 7.2 ns at a supply voltage of 5V.

Does the device provide protection against static discharge?

Yes, all inputs and outputs are equipped with protection circuits providing 2kV ESD immunity.

What is the recommended operating voltage range?

The recommended operating voltage range is 4.5V to 5.5V, although the absolute operating range extends from 2V to 5.5V.