The SN74AC374NSRE4 is an octal D-type edge-triggered flip-flop with 3-state outputs from Texas Instruments. It is a member of the SN74AC family of integrated circuits, which are known for their high speed, low power consumption, and wide operating voltage range.

The SN74AC374NSRE4 has eight D-type flip-flops, each with its own clock (CP) and data input (D). The flip-flops are edge-triggered, meaning that they change state on the rising or falling edge of the clock signal. The 3-state outputs (Q) can be controlled by the output enable (OE) signal. When OE is high, the outputs are enabled and will follow the state of the flip-flops. When OE is low, the outputs are disabled and will remain in their current state.

The SN74AC374NSRE4 is a versatile IC that can be used in a variety of applications, including:

• Data storage and retrieval
• Register files
• Shift registers
• Counters
• Decoders
• Multiplexers
• Sequence controllers

The SN74AC374NSRE4 is available in a 20-pin SOIC package and operates over a wide voltage range of 2.0 V to 5.5 V. It is also capable of operating at high speeds, with a maximum clock frequency of 200 MHz.

Features

• Octal D-type edge-triggered flip-flop
• 3-state outputs
• Wide operating voltage range of 2.0 V to 5.5 V
• High maximum clock frequency of 200 MHz
• Available in a 20-pin SOIC package

Applications

• Data storage and retrieval
• Register files
• Shift registers
• Counters
• Decoders
• Multiplexers
• Sequence controllers

Block Diagram

The following block diagram shows the internal structure of the SN74AC374NSRE4:

SN74AC374NSRE4 block diagram

The eight D-type flip-flops are labeled FF1 through FF8. Each flip-flop has its own clock (CP) and data input (D). The 3-state outputs (Q) are controlled by the output enable (OE) signal.

Pinout

The following table shows the pinout of the SN74AC374NSRE4 in a 20-pin SOIC package: