The HD74HC373FPV-E is an octal transparent D-type latch manufactured by Renesas Electronics. It belongs to the HC (High-speed CMOS) logic family, combining high speed with low power consumption. The ‘-E’ likely indicates specific packaging or environmental compliance.
Applications:
- Address Latching: Used to latch address signals in memory systems.
- Data Latching: Used to temporarily store data in digital systems.
- Input/Output Port Expansion: Expands the number of available I/O ports in microcontroller applications.
- Microprocessor Interfacing: Provides a buffer and latch between a microprocessor and peripheral devices.
- Data Acquisition Systems: Latches data from sensors or other input devices.
Features:
- Octal Latch: Contains eight independent D-type latches in a single package.
- Transparent Operation: When the latch enable (LE) is high, the Q outputs follow the D inputs.
- High-Speed Operation: Provides fast propagation delays, suitable for high-speed digital systems.
- Low Power Dissipation: CMOS technology minimizes power consumption.
- Wide Operating Voltage Range: Operates over a wide voltage range, typically 2V to 6V.
- Three-State Outputs: Outputs can be in a high, low, or high-impedance state.
Benefits:
- Data Storage: Provides temporary storage for data or address signals.
- Improved System Performance: High-speed operation contributes to faster system performance.
- Reduced Power Consumption: Low power dissipation extends battery life and reduces heat.
- Versatile Applications: Suitable for a wide range of digital logic applications.
- Simplified System Design: Simplifies the design of complex digital systems.
Additional Details:
The HD74HC373FPV-E typically comes in a SOP (Small Outline Package). Its operating temperature range is usually -40°C to +85°C. The three-state outputs are controlled by an output enable (OE) input. When OE is high, the outputs are disabled. When LE (Latch Enable) is high, the Q outputs follow the D inputs; when LE transitions low, the data present at the D inputs is latched. Detailed electrical characteristics (e.g., propagation delay, supply current) can be found in the Renesas datasheet.