Product Overview: 74HC373D by NXP Semiconductors

The 74HC373D is a high-speed Si-gate CMOS device from NXP Semiconductors designed to deliver the functionality of the industry-standard 74HC373 octal D-type transparent latch with 3-state outputs. This integrated circuit is widely used in applications that require the temporary storage of data and the transfer of data from one place in a system to another.

Key Features

• Logic Type: Octal D-type Transparent Latch
• Output Type: 3-State
• Package: SO20 (Small Outline Package with 20 pins)
• Supply Voltage Range: 2.0V to 6.0V
• High-Speed Performance: Typical shift frequency of 80 MHz
• Low Power Consumption: 80 µA maximum ICC
• Temperature Range: -40°C to +125°C operational range, suitable for industrial environments
• Compatibility: Inputs are compatible with TTL levels

Applications

The 74HC373D is versatile and can be used in a wide range of electronic applications. It is particularly suitable for temporary data storage, data buffering, and as a holding register. Its use cases span across various sectors including:

• Computers and Computer Peripherals
• Communication Devices
• Data Processing Systems
• Control Systems
• Instrumentation and Measurement Equipment

Product Description

The 74HC373D features eight D-type transparent latches with 3-state outputs, meaning that each latch can be in one of three states: high, low, or high-impedance. The high-impedance state is particularly useful for interfacing with a bus-oriented system. The device operates with a wide range of supply voltages from 2.0V to 6.0V, making it suitable for interfacing with both TTL and CMOS logic levels.

A latch enable (LE) input and an output enable (OE) input control the state of each latch and the state of the output, respectively. When LE is high, the data on the D inputs is transferred to the latches. The data is held stable when LE returns to low. The OE input can be used to place the outputs in either a normal logic state or the high-impedance state, which is necessary when multiple outputs are connected to a common bus line.

The 74HC373D is provided in a slim SO20 package, which is ideal for space-constrained applications while ensuring robustness and ease of integration into a wide array of electronic systems.