The SN74AS373N is a high-performance octal transparent D-type latch designed by Texas Instruments. This integrated circuit is part of the Advanced Schottky (AS) logic family, which is renowned for its fast switching speeds and high current drive capability. The SN74AS373N is ideal for temporary storage of data and can be used in a wide range of applications including memory address latching, data buffering, and register storage.

Key Features

• Logic Type: Octal D-type transparent latches with 3-state outputs
• Package: Housed in a 20-pin plastic DIP (Dual In-line Package)
• Operating Voltage: Typically 5V, which is suitable for TTL (Transistor-Transistor Logic) environments
• High-Speed Performance: Features a typical shift frequency of 30MHz
• Output Capability: Capable of driving 15 LSTTL loads, which allows for a wide range of applications
• Bus Interface Capability: 3-state bus-driving outputs for bus-oriented applications

Product Description

The SN74AS373N consists of eight D-type latches with 3-state outputs designed to interface directly with the system bus. The device features a transparent latch mode, where the data at the inputs appear at the outputs while the latch-enable (LE) input is high. When LE is taken low, the data that meets the setup time requirements is latched. The 3-state outputs ensure that the device can be connected directly to a bus and be enabled or disabled without interfering with the operation of other devices connected to the bus.

With its fast propagation delay and setup times, the SN74AS373N is particularly useful in systems that require high-speed data transfer and storage. The chip's high current drive also offers excellent output stability, which is critical for maintaining data integrity in noisy environments or when driving capacitive loads.

Applications

Due to its versatile nature and performance characteristics, the SN74AS373N is commonly used in:

• Computer systems
• Data storage devices
• Communication systems
• Instrumentation and control systems
• Complex data acquisition systems

Whether used in simple latching operations or integrated into sophisticated digital systems, the SN74AS373N provides reliable performance and contributes to the efficiency and stability of electronic circuits.