Single chip microcomputer STM32L151CCU6

Mobile phone crystal 3.2*2.5mm 3225 26M (26.000MHZ) 7.5PF 10PPM 20PPM 30PPM

An embedded system is a collection of computer hardware and software. It includes a processor, which involves direct control of the hardware, is designed to be embedded in the object system to perform a specific function, and is an abbreviation for embedded computer system. For example, microwave ovens are good examples of embedded systems: using people's processors and software to cook. The embedded system is in stark contrast to the home computer (personal computer). Also computer hardware and software, personal computers are not used to perform a specific function, instead, it can do a variety of different things. Therefore, many people use the versatility of computers to distinguish between a general purpose computer (general purpose microcomputer) and a dedicated computer system such as an embedded system. The embedded system can be a microcontroller (single chip microcomputer) or a computer system mainly composed of a microprocessor, and also includes a system composed of digital signal processors (DSPs) and a system on chip SoC (System on Chip). The microcontroller is a single-chip computer designed for embedded applications. In order to expand the requirements of embedded applications, various unit circuits that meet the control needs are continuously expanded on-chip to form a microcontroller that is widely used at present. Therefore, microcontrollers (microcontrollers) are a typical popular embedded system because they have no other use than embedded applications.