The TC74VHC9541FK-EK is an 8-bit buffer/line driver with 3-state outputs manufactured by Toshiba Semiconductor and Storage. This device is part of the VHC (Very High-Speed CMOS) family, offering high-speed performance with low power consumption. It is designed to be used in a variety of digital logic applications where buffering, driving, or isolation of signals is required.

Applications:

• Memory Interfacing: Used as a buffer between memory and processors or other logic devices.
• Data Bus Driving: Drives data signals across a backplane or long PCB traces.
• Address Decoding: Buffers and isolates address lines in memory systems.
• I/O Expansion: Extends the number of I/O ports available to a microcontroller or processor.
• Logic Level Translation: Used to interface between different logic voltage levels.

Features:

• High-Speed Operation: Offers fast propagation delays for high-speed digital systems.
• Low Power Consumption: CMOS technology minimizes power dissipation.
• 3-State Outputs: Allows outputs to be placed in a high-impedance state for bus isolation.
• Wide Operating Voltage Range: Operates from 2V to 5.5V.
• High Output Drive Capability: Provides sufficient current to drive multiple loads.
• Small Package: Available in a compact TSSOP package.

Benefits:

• Improved System Performance: High-speed operation reduces signal delays and improves overall system performance.
• Reduced Power Consumption: Low power consumption extends battery life in portable devices.
• Enhanced System Flexibility: 3-state outputs allow for easy bus sharing and isolation.
• Simplified Design: Wide operating voltage range simplifies design and reduces the need for level translation.
• Reduced Board Space: Small package minimizes the footprint on the printed circuit board.

Technical Specifications:

The TC74VHC9541FK-EK typically features a propagation delay of around 4 ns to 8 ns, depending on the supply voltage and load capacitance. The output drive capability is typically around 8 mA. The quiescent current is very low, typically in the microampere range. It operates over a temperature range of -40°C to +85°C. The input voltage thresholds are compatible with TTL and CMOS logic levels.

The device features eight non-inverting buffers, each with a dedicated 3-state output enable control. A single enable input controls all eight outputs. It is housed in a TSSOP (Thin Shrink Small Outline Package) for surface mount assembly.