Nowadays, the internet as one of the most popular tools in the world has provided an extensive connection of resources described as the Internet of Things (IoT). Wireless Sensor Networks (W) are used as the communication network in many applications in various domains including industrial automation, smart buildings, and health-care. These networks consist of many wireless sensor nodes that have limitations on power consumption, transmission range, and form factor. They are deployed in an environment to perform data processing and sensing the environment. Usually, these sensors are powered by batteries. It is difficult and challenging to recharge or change the batteries after they deplete. The IEEE 802.15.4 standard is one of the most important standards for these networks because of its low data rate, low power consumption and low cost features, which could coexist in the ISM band along with other standards. A node of this standard, due to its low power and low cost features typically uses embedded processors with limitations in processing power and memory, which makes it challenging to provide processing needs of applications with complex protocol stack. If it does, all the processing power and memory would be consumed to implement the protocol stack and then there would be no resources left to run other processing needs. In order to overcome these limitations, the clock speed of the processor can be increased, or a more powerful processor should be used. In such cases, the power consumption and the cost of the node would increase greatly. One of the approaches of various companies in this field, such as NXP, is to transfer some of the protocol stack tasks to the hardware in order to reduce the processing workload of the processor. The TSCH mechanism is one of the IEEE 802.15.4 standard operating modes, developed for noisy industrial environments. It uses time-slots and channel hopping to overcome the effects of multi-path fading and external interference. This mechanism imposes a high workload on the processor due to its precise schedules. By transferring this mechanism from the software running on the micro-controller to hardware, processor workload could be reduced. Moreover, if internal network collisions are prevented, they could lead to reduced retransmission, which results in increased throughput and overall improvement in power consumption. In this research, two main tasks are taken into consideration. First, the digital baseband processor of IEEE 802.15.4 standard has been designed and implemented to be used as a platform for adding TSCH mechanism. Secondly, TSCH mechanism has been designed and implemented in hardware to be used as an accelerator in baseband processors. Lastly, the integration of the TSCH accelerator and digital baseband processor has been synthesised in TSMC 65nm technology. The results include resource utilization and power consumption, which contain the information needed 78 to implement the IEEE 802.15.4 standard operating mode in hardware so that in the minimum setting of this mechanism, only 0.1% has been added to the power consumption of the digital baseband processor. Key Words: IEEE 802.15.4, TSCH MAC Accelerator, Internet of Things