The MC74HC75DR2 is a high-speed CMOS Quad Bistable Latch manufactured by NXP Semiconductors (formerly Freescale). This device contains four independent latches, each capable of storing one bit of digital information. The latches are controlled by individual enable (G) inputs. When the enable input is HIGH, the Q output follows the D input. When the enable input transitions LOW, the data present at the D input is latched and retained until the enable input goes HIGH again.

Applications

• Data Buffering
• Address Latching
• Memory Storage
• Multiplexing
• Digital Systems

Features

• High Speed: Propagation delay times are very short due to the CMOS technology.
• Low Power Dissipation: Significantly reduces power consumption compared to TTL logic.
• Wide Operating Voltage Range: Operates from 2V to 6V.
• High Noise Immunity: Provides reliable operation in noisy environments.
• TTL Compatibility: Can interface with TTL logic levels.
• Quad Structure: Contains four independent latches in a single package.

Benefits

• Efficient Data Storage: Enables temporary storage of data with minimal power consumption.
• Increased System Speed: High-speed operation reduces delays in digital circuits.
• Reduced Power Consumption: Low power dissipation allows for energy-efficient designs.
• Improved System Reliability: High noise immunity ensures stable operation.
• Simplified System Design: TTL compatibility facilitates integration with existing systems.

Additional Details

The MC74HC75DR2 is typically available in a SOIC-16 (Small Outline Integrated Circuit) package. It's designed for a wide range of digital logic applications where temporary data storage and high-speed operation are required. The device's CMOS technology provides excellent noise immunity and low power consumption, making it suitable for battery-powered and other energy-sensitive applications.

The latch operates by allowing the Q output to follow the D input when the enable (G) is high. When the enable transitions low, the current state of the D input is captured and held at the Q output, irrespective of further changes at the D input. This makes it ideal for applications requiring sample-and-hold functionality or data buffering.