The NXP 74HCT574 is an integrated circuit that belongs to the high-speed Si-gate CMOS family. It is an octal D-type flip-flop with 3-state outputs, designed to have the same high-speed performance of LSTTL combined with the true CMOS low power consumption. This device features eight edge-triggered flip-flops with individual D-type inputs and 3-state true outputs.
Key Features
- Compatibility: The 74HCT574 is fully compatible with TTL logic levels, making it ideal for interfacing with legacy TTL logic or as a bridge in mixed-technology systems.
- Octal Configuration: The device contains eight flip-flops with single-rail inputs, allowing for easy parallel data processing or storage.
- 3-State Outputs: The outputs can be put into a high impedance state, which is crucial for bus-oriented applications, allowing multiple devices to share the same output lines.
- Positive-Edge Triggering: Each flip-flop is triggered on the rising edge of the clock input signal, ensuring precise timing and synchronization across all eight flip-flops.
- Master Reset: The inclusion of a direct clear input (MR) allows for synchronous resetting of all flip-flops, providing a convenient way to reset the system state during operation.
Applications
The 74HCT574 is suitable for a wide range of applications, including:
- Buffer storage
- Shift registers
- Data storage
- Pattern generators
Technical Specifications
Attribute
Value
Logic Family
HCT
Output Type
3-State
Propagation Delay Time
Typical 18ns
Supply Voltage Range
4.5V to 5.5V
Operating Temperature Range
-40°C to +125°C
Package Type
DIP, SOIC, TSSOP
With its robust design and versatile features, the NXP 74HCT574 is a reliable choice for designers who require high-performance flip-flop functionality in their digital systems.
