The TC74AC373FT is an octal D-type transparent latch with three-state outputs manufactured by Toshiba Semiconductor and Storage. As part of the Advanced CMOS (AC) logic family, it is characterized by high speed and low power consumption. This device contains eight D-type latches with a common enable (LE) input and three-state outputs. When the latch enable (LE) is high, the Q outputs follow the data (D) inputs. When LE is low, the data present at the D inputs is latched. The three-state outputs allow for connection to a common bus. The TC74AC373FT is commonly used for temporary data storage and bus interfacing in digital systems. The device comes in a surface-mount package.

Applications:

• Data Latching: Used for temporary data storage in digital systems.
• Memory Address Latching: Latches memory addresses for stable memory access.
• Bus Interfacing: Interfaces devices to a common bus.
• I/O Port Expansion: Expands the number of I/O ports in a system.
• Microprocessor Systems: Used in microprocessor-based systems for data handling and control.

Features:

• Octal D-Type Latches: Contains eight independent D-type latches.
• Transparent Latch Operation: Q outputs follow D inputs when LE is high.
• Three-State Outputs: Allows outputs to be placed in a high-impedance state.
• High-Speed Operation: Provides fast latching and output enable times.
• Low Power Consumption: Operates with minimal power dissipation.
• Wide Operating Voltage: Functions over a broad voltage range.
• Surface-Mount Package: Facilitates compact PCB designs.

Benefits:

• Efficient Data Storage: Provides temporary storage of parallel data.
• Simplified System Design: Transparent latch operation simplifies data capture.
• Improved Bus Performance: Three-state outputs prevent bus contention.
• Energy Efficiency: Low power consumption extends battery life in portable applications.
• Versatile Application: Wide operating voltage range allows for use in various systems.
• Compact Design: Surface-mount package saves board space.

The TC74AC373FT consists of eight D-type latches. When the latch enable (LE) input is high, the Q outputs follow the corresponding D inputs, making the latch transparent. When LE transitions low, the data present at the D inputs is latched and held at the Q outputs, regardless of subsequent changes at the D inputs. The output enable (OE) input controls the three-state outputs. When OE is low, the outputs are enabled, and the latched data is driven onto the bus. When OE is high, the outputs are placed in a high-impedance state. The device operates within a temperature range of -40°C to +85°C. For detailed specifications regarding timing characteristics, input/output characteristics, and power dissipation, consult the official Toshiba datasheet for the TC74AC373FT.