The 74V573MTC is an octal transparent latch with 3-STATE outputs from Fairchild Semiconductor (now ON Semiconductor). This device is designed to temporarily store data and drive buses with its 3-STATE outputs. The device is commonly used in memory interfacing and data buffering applications.

Applications

• Memory address latching
• Data buffering
• I/O port expansion
• Microprocessor systems

Features

• Octal Latch: Eight latches in a single package
• Transparent Operation: Data passes through when the latch enable (LE) is HIGH
• 3-STATE Outputs: Allows for bus isolation
• Low Power Consumption: ICC = 4 µA (max) at VCC = 5V
• TTL Compatible Inputs

Benefits

• Efficient Data Storage: Provides temporary data storage.
• Simplified Bus Interface: 3-STATE outputs allow for easy connection to buses.
• Reduced Loading: 3-STATE outputs minimize bus loading when disabled.
• Wide Operating Voltage Range: Operates from 2V to 6V.
• Low Power Dissipation: Enhances energy efficiency.

Additional Details

The 74V573MTC contains eight D-type latches. When the Latch Enable (LE) input is HIGH, the Q outputs follow the data (D) inputs. When LE transitions LOW, the data present at the D inputs at that time is latched. The output enable (OE) input controls the 3-STATE outputs. When OE is LOW, the outputs are enabled; when OE is HIGH, the outputs are in a high-impedance state. This device is ideal for buffering memory addresses and data in microprocessor systems. The TTL compatible inputs make it easy to interface with other TTL logic devices. The operating temperature range is typically -40°C to +85°C.