SN74HCT374PWR by Texas Instruments

The SN74HCT374PWR is a high-performance, octal edge-triggered D-type flip-flop integrated circuit (IC) designed and manufactured by Texas Instruments (TI). This device is part of the 'HCT' family, which means it is designed to interface between CMOS and TTL logic levels while operating at the same speed as TTL parts. The SN74HCT374PWR is commonly used in a wide range of digital applications, including computers, data storage, communication systems, and other electronic devices that require high-speed, reliable data storage and transfer.

The SN74HCT374PWR has eight D-type flip-flops with a common clock (CP) and a common clear (CLR) input. The flip-flops capture the data present on their respective D inputs on the rising edge of the clock signal. Once captured, the data is available at the Q outputs until the clear input is activated or the next rising edge of the clock input occurs. The clear input is active low, which means that the flip-flops are cleared to a low level when CLR is held low.

Key features of the SN74HCT374PWR include:

• Wide operating voltage range of 4.5V to 5.5V, making it compatible with 5V systems.
• High output current: -8mA IOL (sink current) and 4mA IOH (source current).
• Low power consumption: Typical ICC of 4µA at 5V.
• High noise immunity characteristic of CMOS devices.
• Direct LSTTL input logic compatibility, VIL of 0.8V and VIH of 2V.

This device comes in a TSSOP (Thin Shrink Small Outline Package) with 20 pins, making it suitable for space-constrained applications. The SN74HCT374PWR offers the advantage of the low power consumption of CMOS circuitry while providing a robust interface with TTL logic levels. Its high-speed performance and reliability are assured by Texas Instruments' commitment to quality, making it an excellent choice for a variety of digital logic applications.

For design flexibility, the SN74HCT374PWR is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. Additionally, the device supports live insertion and withdrawal, enhancing its usability in complex systems where maintenance or upgrades may be necessary without powering down the entire system.