A mobile phone network consists of 72macro cells, which are radio coverage cells served by a high-power cell site (tower, antenna or mast).PLCC is the package in which it resides.There are 69 I/Os programmed in it.The device is programmed with 84 terminations.As the terminal position of this electrical part is QUAD, it serves as an important access point for passengers and freight.Power is provided by a supply voltage of 5V volts.The chip is programmed with 84 pins.When using this device, YES can also be found.For high efficiency, the supply voltage should be maintained at 5V.In order to store data, FLASH is used.The device is designed with pins 84.Ideally, the operating temperature should be greater than 0°C.It is recommended that the operating temperature be lower than 70°C.It is composed of 8 logic blocks (LABs).It is recommended that the maximal frequency be lower than 83.3MHz.