74AC00TTR

Overview

The STMicroelectronics 74AC00TTR is a Quad 2-Input NAND gate fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It operates within a supply voltage range of 2V to 6V. Key electrical characteristics include a typical propagation delay of 4ns at VCC = 5V, symmetrical output impedance with |IOH| = IOL = 24mA (min), and high noise immunity defined by VNIH = VNIL = 28% VCC (min). The device features balanced propagation delays (tPLH ≅ tPHL) and supports 50Ω transmission line driving capability.

Feature Summary

• Advanced high-speed CMOS logic utilizing sub-micron silicon gate and double-layer metal wiring C2MOS technology for enhanced performance.
• Integrated protection circuits on all inputs and outputs providing 2kV ESD immunity against static discharge and transient excess voltage.
• Internal circuit architecture composed of three stages including buffer output to ensure stable operation and high noise immunity.

Applications

• High-speed digital signal processing systems requiring low power dissipation
• Data acquisition equipment utilizing 50Ω transmission line interfaces
• Industrial control units operating in environments demanding improved latch-up immunity

Procurement Notes

Verify the specific package variant, as the TTR suffix denotes Tape and Reel packaging in the TSSOP-14 form factor. Confirm that the required operating temperature range aligns with the specified -55°C to +125°C limits. Ensure input voltage levels remain within the 0 to VCC range to prevent damage. Check for RoHS compliance status if environmental regulations apply to your manufacturing process.

Selection Notes

Select this component when system requirements demand high-speed switching with a typical 4ns propagation delay at 5V operation. It is suitable for designs needing symmetrical output drive capabilities of 24mA minimum. Consider this part for applications interfacing with 50Ω transmission lines where balanced propagation delays are critical for timing integrity.

Part Context

This component belongs to the 74AC series of advanced CMOS logic gates. It maintains pin and function compatibility with the legacy 74 Series 00 devices while offering superior speed and lower power consumption. The 74AC00 serves as a direct functional replacement for standard NAND gates in modern high-performance digital circuits.

Replacement Considerations

The 74AC00TTR is pin-compatible with other 74AC00 variants such as the DIP or SOP packages. Verify that substitute components maintain the same 2V to 6V operating voltage range and 24mA output drive strength to ensure circuit continuity.