The TC74LCX373FT(EL,K) is a high-performance, low-voltage octal D-type latch manufactured by Toshiba Semiconductor and Storage. This device is designed for use in a wide range of digital systems where temporary data storage is required. It operates with a supply voltage range of 2.0V to 3.6V, making it suitable for battery-powered and low-power applications.

Applications

• Microprocessor-based systems
• Memory interface circuits
• Data buffering
• Address latching
• High-speed logic systems

Features

• Low-voltage operation: 2.0V to 3.6V
• High-speed operation: tpd = 4.5 ns (typical) at 3.3V
• Low power consumption: ICC = 10 µA (maximum) at 3.3V
• Octal latch with 3-state outputs
• Positive edge-triggered D-type latches
• 3-state outputs directly interface to microprocessor systems
• Outputs source/sink 24mA at 3.3V
• Available in TSSOP package for space-saving applications

Benefits

• Increased system performance due to high-speed operation.
• Reduced power consumption, extending battery life in portable devices.
• Simplified interfacing with microprocessors due to 3-state outputs.
• Space-saving design due to the availability of the TSSOP package.
• Enhanced noise immunity due to low-voltage operation.

Technical Specifications

The TC74LCX373FT(EL,K) features eight D-type latches, each with a data input (D) and a latch enable input (LE). When the LE input is high, the Q outputs follow the data input D. When the LE input goes low, the data present at the D inputs at that time is latched at the Q outputs. The device also incorporates an output enable (OE) input, which, when low, enables the 3-state outputs, and when high, disables the outputs, placing them in a high-impedance state. This feature allows for easy memory expansion and data bus interfacing.

The device is characterized for operation from -40°C to +85°C, making it suitable for a wide range of environmental conditions. The input and output pins are designed to be overvoltage tolerant, providing protection against voltage spikes and surges. The TC74LCX373FT(EL,K) is available in a thin shrink small outline package (TSSOP), which minimizes board space requirements.