The 54HC373/BRAJC is an octal transparent latch with 3-state outputs manufactured by Freescale Semiconductor - NXP. As a member of the 54HC series, it's designed for operation over a wide voltage range with CMOS technology, and, given the 54 prefix, it meets military-grade specifications. The latch is transparent when the Latch Enable (LE) input is high, allowing data to pass through. When LE goes low, the data present at the inputs is latched and retained. The 3-state outputs can be disabled, effectively disconnecting the outputs from the bus.

Applications

• Data Storage: Temporarily storing data in memory systems and digital circuits.
• Address Latching: Latching address signals in microprocessor systems.
• I/O Ports: Interfacing microprocessors with peripheral devices.
• Bus Buffering: Buffering data on a shared bus.
• Control Circuits: Implementing control logic in various systems.

Features

• Octal Latch: Contains eight independent latches in a single package.
• Transparent Operation: Data passes through when Latch Enable is high.
• 3-State Outputs: Outputs can be disabled for bus isolation.
• High-Speed Operation: Fast propagation delay for high-frequency applications.
• Wide Operating Voltage Range: Operates from 2V to 6V.

Benefits

• Versatile Data Storage: Can be used in a variety of data storage applications.
• Bus Compatibility: 3-state outputs allow for easy integration into bus-oriented systems.
• High Performance: Provides reliable operation in high-speed systems.
• Simplified Design: Octal latches in a single package reduce component count.
• Robust Operation: Designed for reliable performance in harsh environments.

Additional Details

The 54HC373/BRAJC is available in various package options, typically a ceramic DIP or flatpack, suitable for military applications. 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. The device operates over the military temperature range of -55°C to +125°C. Always consult the specific datasheet for detailed electrical characteristics, timing diagrams, and package information before use in a design.