The TC74LCX573FK-ELK is a low-voltage CMOS octal D-type transparent latch with 3-state outputs from Toshiba Semiconductor and Storage. This device is designed for high-speed operation while maintaining low power consumption. The 'LCX573 features eight latches with a common enable (LE) input and 3-state outputs, making it suitable for address latching, data buffering, and I/O port applications.

Applications:

• Address latches in microprocessor-based systems.
• Data buffering in memory systems.
• I/O port expansion in embedded systems.
• Data multiplexing and demultiplexing.
• General digital logic applications requiring parallel data storage with tri-state output.

Features:

• Low-voltage operation: Operates at 3.3V, making it suitable for battery-powered and low-power systems.
• High-speed performance: Offers a high propagation delay, ensuring rapid data transfer.
• Octal configuration: Provides eight independent latches for parallel data processing.
• 3-state outputs: Allows for direct connection to bus lines, enabling multiple devices to share the same bus.
• Transparent latch operation: Data passes through the latch when LE is high and is latched when LE goes low.
• CMOS technology: Ensures low power consumption and high noise immunity.
• Surface Mount Package: Available in a SSOP package, which is ideal for high density PCB assembly.

Benefits:

• Improved system performance: The high-speed operation reduces delays and increases throughput.
• Reduced power consumption: Low-voltage CMOS technology minimizes power requirements.
• Simplified circuit design: The octal configuration simplifies the design process.
• Enhanced system flexibility: 3-state outputs facilitate data bus sharing.
• Space-saving design: The small SSOP package allows for compact circuit layouts.

Additional Details:

The TC74LCX573FK-ELK utilizes advanced CMOS technology to achieve a balance of speed and power efficiency. It features a propagation delay in the nanosecond range and a quiescent current in the microampere range. The device is designed to be compatible with TTL logic levels, allowing for easy integration into existing systems. The operating temperature range is typically -40°C to +85°C, making it suitable for a wide range of environments. When the Latch Enable (LE) input is high, the Q outputs follow the data inputs. When LE transitions low, the data present at the inputs just before the transition is latched. The Output Enable (OE) input, when high, places the outputs in the high-impedance state.