The MM54HC112J/883 is a dual J-K negative-edge triggered flip-flop with preset and clear inputs, manufactured by Rochester Electronics. This device is part of the 54HC series of high-speed CMOS logic devices, offering improved performance and lower power consumption compared to standard TTL logic. The /883 designation indicates that this part meets stringent military specifications.

Applications

• Shift registers
• Control registers
• Frequency dividers
• Counters
• Memory storage elements
• Military and aerospace systems

Features

• Dual J-K flip-flops
• Negative-edge triggered
• Preset and clear inputs
• High-speed operation
• Low power consumption
• Wide operating voltage range
• Military-grade reliability (/883)

Benefits

• Versatile building block for digital circuits
• Reliable operation in harsh environments (military grade)
• Easy to implement synchronous and asynchronous logic circuits
• Reduces system power consumption
• Simplified system design due to high integration

Additional Details

The MM54HC112J/883 features individual J, K, clock, preset, and clear inputs for each flip-flop. The flip-flops change state on the negative-going transition of the clock pulse. The preset and clear inputs are asynchronous, overriding the clock and other inputs. The device operates over a wide supply voltage range, typically from 2V to 6V, and exhibits high noise immunity. The /883 designation means that this part has been subjected to rigorous testing and screening procedures to ensure reliable operation in demanding military and aerospace applications. It is supplied in a ceramic dual-in-line package (CERDIP) for enhanced durability. Its high-speed operation and low power consumption make it a suitable choice for a wide range of digital designs where performance and reliability are critical.