The TC74HC373AF is an Octal D-Type Latch with 3-State Outputs from Toshiba's TC74HC series of high-speed CMOS logic devices. This integrated circuit (IC) consists of eight D-type latches with a common enable (LE) input and three-state outputs. When the latch enable (LE) input is high, the Q outputs follow the data (D) inputs. When the LE input goes low, the data present at the D inputs at that time is latched. The 3-state outputs allow the device to be connected directly to a bus, enabling multiple devices to share the same line. It operates with a wide range of supply voltages and offers low power consumption.

Applications

• Memory address latching: Used to latch memory address signals.
• Data storage: Employed for temporary data storage in digital systems.
• I/O port expansion: Utilized for expanding the number of I/O ports of a microcontroller or microprocessor.
• Data bus interfacing: Integrated in data bus systems to latch data for transfer.
• Microcontroller applications: Commonly used in various microcontroller-based applications.

Features

• High-speed operation: Offers fast data latching and retrieval due to its high-speed CMOS technology.
• Wide operating voltage range: Functions across a broad voltage spectrum, enhancing compatibility.
• Low power consumption: Minimizes energy usage.
• Octal D-type latch: Provides eight independent D-type latches in a single package.
• 3-State outputs: Allows outputs to be in a high, low, or high-impedance state.
• CMOS technology: Ensures excellent noise immunity and stable operation.
• Common Latch Enable (LE) input: All eight latches are controlled by a single enable input.

Benefits

• Simplified data latching: Provides a convenient way to latch and store data.
• Improved system performance: High-speed operation contributes to faster data processing.
• Energy efficiency: Low power consumption translates to lower operating costs.
• Enhanced reliability: CMOS technology provides stable performance.
• Efficient bus sharing: The 3-state outputs enable efficient sharing of a bus.

Additional Details

The TC74HC373AF is typically available in a surface-mount package. It is TTL compatible. The output enable (OE) pin controls the output state. Detailed electrical characteristics, such as input voltage levels, output drive current, and switching speeds, can be found in the manufacturer's datasheet.