The IDT54FCT161DB is a high-speed 4-bit binary counter from Renesas Electronics America, designed for use in high-performance digital systems. This counter utilizes advanced CMOS technology to achieve low power consumption while maintaining exceptional speed. It is part of the broader FCT (Fast CMOS Technology) logic family, known for its superior performance compared to standard CMOS devices.

Applications

• Frequency dividers
• Address sequencing in memory systems
• Digital timing circuits
• Microprocessor clock generation
• Event counters

Features

• High-speed operation: fMAX = typically 150 MHz
• Low power consumption
• Fully static operation
• Synchronous counting and clear
• Cascadable for higher-order counters
• TTL-compatible inputs and outputs
• Multiple package options available

Benefits

• Improved system performance due to high-speed operation.
• Reduced power requirements for energy-efficient designs.
• Simplified system design due to TTL compatibility.
• Flexibility in system design through cascadable functionality.
• Reliable operation due to fully static design.

Additional Details

The IDT54FCT161DB features a synchronous counting operation, meaning that all flip-flops are clocked simultaneously, resulting in predictable and glitch-free transitions. The device also includes a synchronous clear input, allowing the counter to be reset to zero on the next clock pulse. Its TTL-compatible inputs and outputs simplify interfacing with other logic devices. This device operates over a wide temperature range, making it suitable for industrial and military applications.

The counter’s cascadable architecture enables the creation of counters with larger bit widths by simply connecting multiple devices together. The carry output provides a means of propagating the count to the next stage in the cascade. The IDT54FCT161DB is available in various package options, including ceramic DIP and surface-mount packages, to accommodate different board layouts and manufacturing processes.

Key Specifications: Supply voltage: 4.75V to 5.25V, Operating temperature: -55°C to +125°C. Propagation delay times are typically in the nanosecond range, ensuring minimal impact on system timing.