Product Overview: 74HCT109N from NXP Semiconductors

The 74HCT109N is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard no. 7A. The 74HCT109N is a dual positive-edge triggered JK flip-flop featuring individual J, K, clock (nCP), set (nSD), and reset (nRD) inputs; also, it has complementary nQ and nQ outputs. This product from NXP Semiconductors is designed for use in applications requiring high-speed performance and the ability to drive TTL circuits.

Each flip-flop is triggered by a high-to-low transition of the clock input while a low level at the set or reset input sets or resets the outputs, regardless of the levels of the other inputs. When set and reset inputs are both high, the flip-flop stores the data provided by the J and K inputs that meet the setup and hold time requirements on the LOW-to-HIGH clock transition. The JK design allows for asynchronous set and reset, making the 74HCT109N particularly versatile and suitable for a wide range of timing, memory, and sequential logic applications.

The 74HCT109N operates on a power supply voltage range of 4.5V to 5.5V, which allows for seamless integration with 5V systems. The low power consumption and high noise immunity of CMOS, combined with the ability to drive 10 LSTTL loads, make this flip-flop a great choice for interfacing with both CMOS and LSTTL systems. Additionally, the 74HCT109N exhibits symmetrical output impedance, balanced propagation delays, and input hysteresis, which enhances its performance in real-world applications.

The device is housed in a 16-pin plastic DIP package, ensuring robustness and ease of handling in manufacturing processes. As part of NXP's commitment to environmental sustainability, the 74HCT109N is available in a lead-free package, making it suitable for eco-friendly production and disposal.

In summary, the 74HCT109N from NXP Semiconductors is a reliable and high-performance solution for digital logic circuits requiring JK flip-flops. Its compatibility with TTL levels, along with the flexibility provided by its set and reset functions, makes it an excellent choice for designers looking for a versatile flip-flop for their digital applications.