The MM74HC73M is a dual JK flip-flop with separate clock, reset, and set inputs. It is part of the 74HC series of high-speed CMOS logic devices, offering significantly improved speed performance compared to standard CMOS logic circuits while maintaining the low power consumption characteristic of CMOS. This device is suitable for a wide range of digital applications requiring bistable elements.

Applications:

• Shift registers
• Counters
• Control circuits
• Memory storage
• Frequency dividers

Features:

• High Speed: tpd = 13ns (typ.) at VCC = 5V
• Low Power Dissipation: ICC = 4μA (max.) at TA = 25°C
• High Noise Immunity: VNIH = VNIL = 28 % VCC (min.)
• Output Drive Capability: 10 LSTTL Loads
• Symmetrical Output Impedance: |IOH| = IOL = 4 mA (min.)
• Balanced Propagation Delays: tPLH ≈ tPHL
• Wide Operating Voltage Range: VCC = 2V to 6V
• Pin and Function Compatible with 74LS73

Benefits:

• Increased system speed due to high-speed operation.
• Reduced power consumption, making it suitable for battery-powered applications.
• Improved noise immunity for reliable operation in noisy environments.
• Direct compatibility with LSTTL devices simplifies system integration.
• Simplified design due to balanced propagation delays.
• Flexible operating voltage range allows use in diverse applications.

Additional Details:

The MM74HC73M consists of two independent JK flip-flops. Each flip-flop has individual J, K, clock, direct reset (RD), and direct set (SD) inputs. The device triggers on the negative-going transition of the clock pulse. The reset and set inputs are active-LOW asynchronous inputs, meaning they override the clock and data inputs. The device is supplied in a 14-lead SOIC package.

Technical Specifications:

• Supply Voltage: 2V to 6V
• Operating Temperature: -40°C to +85°C
• Input High Voltage: 1.5V (min)
• Input Low Voltage: 0.5V (max)
• Output High Current: -4mA
• Output Low Current: 4mA