STMicroelectronics M74HC107B1R Dual JK Flip-Flop with Clear
The M74HC107B1R is a high-speed CMOS Dual JK Flip-Flop with Clear integrated circuit manufactured by STMicroelectronics. This device is part of the HC (High-speed CMOS) family, which is designed to operate with the same speed as LSTTL (Low-power Schottky TTL) while maintaining the CMOS low power dissipation. The M74HC107B1R is a versatile component commonly used in a wide array of digital applications, from counters and control circuits to toggles and shift registers.
The device features two JK flip-flops with individual J, K, clock (CP), and asynchronous clear (CLR) inputs. Each flip-flop has complementary outputs (Q and Q̅). The clear input has a priority over the other inputs, ensuring the flip-flops can be reset to a low state regardless of other inputs. The JK design allows the flip-flop to operate as a toggle flip-flop by connecting both J and K inputs together. When the clock input is held high, the Q output will toggle between high and low states with each pulse at the J and K inputs.
The M74HC107B1R operates over a wide voltage range from 2V to 6V and provides standard outputs which are capable of driving up to 10 LSTTL loads. It has symmetrical output impedance, high noise immunity, and low power consumption characteristics, making it a reliable choice for interfacing with TTL levels. Additionally, the balanced propagation delay and transition times are beneficial for synchronous operations in digital systems.
STMicroelectronics packages the M74HC107B1R in a DIP-14 (Dual In-line Package) form, making it suitable for through-hole PCB mounting. This package is known for its ease of handling and robustness, which is ideal for prototyping and educational environments, as well as commercial production.
Overall, the M74HC107B1R is a functional and reliable component that offers the performance expected from modern digital logic circuits. Its dual JK flip-flop configuration with an asynchronous clear function makes it a flexible and essential part of digital designs requiring precise control over data storage and transfer operations.
