The DM54174J is a hex D-type flip-flop with clear, manufactured by Fairchild/ON Semiconductor. It is part of the 54/74 series TTL logic family and provides six independent D-type flip-flops in a single package, suitable for use in shift registers, storage registers, and control circuits.
Applications:
- Shift Registers: Used to create shift registers for serial-to-parallel or parallel-to-serial data conversion.
- Storage Registers: Employed as storage registers for temporary data storage.
- Control Registers: Utilized in control circuits to store control signals or flags.
- Frequency Dividers: Can be configured as frequency dividers for generating lower-frequency signals.
- Data Latches: Used as data latches to hold data until a specific clock edge.
Features:
- Hex D-Type Flip-Flops: Contains six independent D-type flip-flops in a single package.
- Common Clear Input: Features a common clear input that resets all flip-flops simultaneously.
- Positive-Edge Triggered: Data is transferred to the output on the positive-going edge of the clock pulse.
- High Fan-Out Capability: Designed with high fan-out capability to drive multiple loads.
- Wide Operating Voltage Range: Operates over a wide voltage range compatible with standard TTL logic levels.
Benefits:
- Efficient Data Storage: D-type flip-flops provide efficient data storage and transfer capabilities.
- Synchronous Operation: Positive-edge triggering ensures synchronous operation and prevents race conditions.
- Simplified System Design: Hex configuration reduces component count and simplifies system design.
- Versatile Logic Building Block: Can be used in a variety of digital circuits and systems.
- Enhanced System Performance: High fan-out capability allows for driving multiple loads without signal degradation.
The DM54174J is typically packaged in a 16-pin DIP or flatpack package. The DM54 prefix indicates it is designed for the military temperature range (-55°C to +125°C). Each flip-flop has a D input, a clock input, and a Q output. The common clear input asynchronously resets all flip-flops to a low state, independent of the clock signal. Refer to the manufacturer’s datasheet for detailed specifications, timing diagrams, and application examples.