The PI74LPT373CSX is an octal transparent latch from Pericom Semiconductor. It's designed for high-performance, low-power applications. This device features eight D-type transparent latches with 3-state outputs, making it suitable for use in bus-oriented systems where data needs to be temporarily stored and accessed by multiple devices.

Applications

• Microprocessor-based systems
• Data buffering
• Address latching
• Memory interface
• Bus interface

Features

• Octal transparent latch
• 3-state outputs
• High-performance, low-power operation
• TTL compatible inputs
• Wide operating voltage range
• Propagation delay of typically under 10 ns
• Available in SOIC package

Benefits

• Provides temporary data storage in bus systems.
• Enables efficient data transfer between devices with different operating speeds.
• Reduces power consumption compared to standard TTL devices.
• Simplifies interface design with TTL compatible inputs.
• Offers flexibility in system design with a wide operating voltage range.
• Minimizes signal propagation delays for faster system performance.
• Compact SOIC package saves board space.

Additional Details

The PI74LPT373CSX operates from a 4.5V to 5.5V supply voltage. The output enable (OE) input, when high, disables the outputs, placing them in a high-impedance state. This allows multiple devices to share the same bus lines without contention. The latch enable (LE) input controls the latching operation. When LE is high, data passes transparently from the inputs to the outputs. When LE transitions low, the data present at the inputs immediately before the transition is latched and held at the outputs, regardless of subsequent changes at the inputs.

This device is often used in applications where data needs to be held temporarily, such as during a memory write cycle or while waiting for a slower peripheral device to catch up. Its high-speed performance and low power consumption make it an ideal choice for a wide range of digital systems.