STMicroelectronics 74AC273 Octal D-Type Flip-Flop with Clear

The 74AC273 is a high-speed, octal D-type flip-flop integrated circuit designed and manufactured by STMicroelectronics. This advanced CMOS device has eight edge-triggered D-type flip-flops with individual D inputs and Q outputs. The common clock (CP) and master reset (MR) inputs control all flip-flops. The 74AC273 is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

Each flip-flop is designed to store a single bit of data and is triggered on the rising edge of the clock signal, which means that the data on the D input is transferred to the Q output only when the clock input goes from a low to a high state. The master reset input is active high and, when asserted, will reset all flip-flops to the low state, regardless of the clock input or the state of the D inputs.

The 74AC273 is known for its high-speed operation and compatibility with TTL (Transistor-Transistor Logic) levels. This makes it an excellent choice for interfacing with legacy systems or devices that operate with TTL logic. The device operates over a broad voltage range, typically from 2.0V to 6.0V, providing flexibility in various applications and ensuring compatibility with both 5V and 3.3V logic levels.

The IC is offered in a variety of package types, including the widely used 20-pin DIP (Dual In-line Package), SOIC (Small Outline Integrated Circuit), and TSSOP (Thin Shrink Small Outline Package). This diversity in packaging allows for flexibility in PCB (Printed Circuit Board) design and space-saving considerations for compact electronic assemblies.

STMicroelectronics ensures that the 74AC273 meets stringent quality and reliability standards. The device is characterized for operation from -40°C to +85°C, making it suitable for industrial applications that require robust performance in extreme conditions. Its fast propagation delay and edge-triggered input characteristics make it a go-to choice for designers looking for a reliable solution in high-speed digital systems.

Overall, the 74AC273 from STMicroelectronics is a versatile and reliable component that offers a balance of speed, power consumption, and robustness for a wide range of digital applications.