The TC74HC174AF(ELF) is a high-speed CMOS synchronous presettable 6-bit D-type flip-flop manufactured by Toshiba Semiconductor and Storage. This device is fabricated with silicon gate CMOS technology, achieving high-speed operation similar to equivalent LSTTL while maintaining the low power dissipation characteristic of CMOS. It is designed for use in a wide range of digital logic applications.

Applications

• Registers: Used as storage elements in data registers for temporary data holding.
• Shift Registers: Employed in shift register applications for serial-to-parallel or parallel-to-serial data conversion.
• Counters: Forms the building blocks for synchronous counters in frequency dividers.
• Memory Address Decoding: Utilized in address decoding schemes for memory systems.
• Data Synchronization: Helps to synchronize data signals in complex digital systems.
• Control Circuits: Found in various control circuits for managing sequential logic operations.

Features

• High-Speed Operation: Achieves performance comparable to LSTTL logic gates.
• Low Power Dissipation: Consumes minimal power due to CMOS technology.
• Synchronous Operation: All flip-flops are triggered simultaneously on the rising edge of the clock input.
• Direct Clear Input: Allows for asynchronous clearing of all flip-flops.
• Wide Operating Voltage Range: Operates from 2V to 6V.
• Preset Enable: Has a preset enable function that allows data to be loaded directly.
• Outputs Drive Capability: Can drive 10 LSTTL loads.

Benefits

• Improved System Performance: High-speed operation allows for faster processing in digital systems.
• Reduced Power Consumption: Low power dissipation minimizes energy usage and heat generation.
• Simplified Circuit Design: Synchronous operation and direct clear input simplify complex logic designs.
• Enhanced System Reliability: Wide operating voltage range improves noise immunity and overall system robustness.
• Versatile Application: Suitable for a broad range of digital logic applications.

Additional Details

The TC74HC174AF(ELF) is available in a SOP16 package. It operates over a temperature range of -40°C to +85°C. This device features six D-type flip-flops with a common clock and clear input. Data is transferred to the outputs on the positive-going edge of the clock pulse. The clear input, when low, sets all outputs to a logic low state, independent of the clock. The propagation delay is typically in the range of nanoseconds, depending on the supply voltage and load conditions. The 'ELF' suffix denotes an environmentally friendly lead-free package.