SN74HCT574NG4 Octal Edge-Triggered D-Type Flip-Flops

The SN74HCT574NG4 from Texas Instruments is a high-performance, octal edge-triggered D-type flip-flop integrated circuit designed for use in a wide range of digital applications. This device is part of the HCT family and is compatible with standard TTL integrated circuits. It features eight D-type flip-flops with 3-state outputs, making it ideal for driving bus lines or buffer memory address registers.

With its robust design, the SN74HCT574NG4 is capable of directly driving up to 15 LSTTL loads over the full operating temperature range. The device operates at a voltage range of 4.5V to 5.5V, which allows for seamless integration with 5V systems. The flip-flops are edge-triggered, capturing data on the rising edge of the clock signal, which means that the output state is guaranteed to be stable and reliable once the clock pulse has passed.

The 3-state outputs of the SN74HCT574NG4 are essential for bus-oriented systems. When the output enable (OE) input is high, the outputs are in a high-impedance state, which prevents them from affecting or loading the bus when the device is not actively driving it. This feature is particularly useful in multiplexed systems where data integrity is critical.

Key features of the SN74HCT574NG4 include:

• Eight edge-triggered D-type flip-flops with 3-state outputs
• Wide operating voltage range of 4.5V to 5.5V
• Direct drive capability of up to 15 LSTTL loads
• High-impedance state during power up and power down
• HCT logic level compatibility for direct interfacing with TTL logic levels
• Wide operating temperature range suitable for commercial and industrial applications

The versatility and reliability of the SN74HCT574NG4 make it a preferred choice for designers and engineers looking for a dependable flip-flop IC for their digital circuits. Whether it's for data storage, shift registers, or as a buffer, this Texas Instruments product delivers consistent performance and integrates smoothly with existing 5V logic systems.

Encased in a 20-pin PDIP package, the SN74HCT574NG4 is also easy to handle and solder onto a printed circuit board, making it suitable for prototyping and mass production alike.