STMicroelectronics 74AC02TTR Quad 2-Input NOR Gate

The 74AC02TTR from STMicroelectronics is a high-speed CMOS Quad 2-Input NOR Gate integrated circuit, designed to deliver exceptional performance in a wide range of digital applications. This device is part of the AC series, which is known for its high-speed operation comparable to equivalent bipolar Schottky TTL while maintaining the CMOS low power dissipation.

Each of the four independent NOR gates performs the Boolean function Y = A + B or Y = (A • B) in positive logic, where Y is the output and A and B are the inputs. The 74AC02TTR is capable of driving up to 24mA at the output while maintaining a low input current of just 1µA, making it an efficient choice for interfacing with high-speed logic systems.

With its wide operating voltage range of 2V to 6V, the 74AC02TTR provides flexible power compatibility, ensuring that it can be used in various logic level environments. The device is characterized for operation from -55°C to 125°C, allowing it to perform reliably in extreme temperature conditions, making it suitable for industrial and automotive applications.

The 74AC02TTR comes in a TSSOP-14 package, which is a thin shrink small outline package that saves space on printed circuit boards, allowing for more compact electronic designs. This package type is also ideal for surface-mount technology, which is prevalent in today's electronics manufacturing processes.

Key features of the 74AC02TTR include:

• High-speed operation: t<sub>PD = 4.3ns (typ.) at V<sub>CC = 5V
• Low power dissipation: I<sub>CC = 2µA (max.) at T<sub>A = 25°C
• Wide operating voltage range: V<sub>CC = 2V to 6V
• High noise immunity: V<sub>NIH = V<sub>NIL = 28% V<sub>CC (min.)
• Power-down protection provided on inputs and outputs
• Symmetrical output impedance: |I<sub>OH| = I<sub>OL = 24mA (min.)
• Pin and function compatible with other standard logic families
• Latch-up performance exceeds 300mA
• ESD performance:
• HBM: >1kV
• MM: >200V

The 74AC02TTR is an exemplary choice for designers looking for a reliable, high-speed NOR gate logic solution that offers both power efficiency and robust performance. With its compact form factor and compatibility with existing logic standards, it is a versatile component suitable for a broad range of digital applications.