1, IC classification What is IC? IC - Integrated Circuit, ie integrated circuit. On a semiconductor wafer (CHIP), thousands of various transistors (diode, triodes), electrical resistance, capacitance, cable, etc. are collected together, which is integrated circuit.
. According to the integration class, according to the integration (how many electronic components put on a board), IC can be divided into: SSI (Small Scale Integration) Small-scale Integrated Circuit 100 or less MSI (Medium Scale Integration) Medical Integrated Circuit 100 ~ 1000 Large scale integration large-scale integrated circuit 1000 VLSI (VERY LARGE SCALE Integration) super large scale integrated circuit is more than 10,000 ULSI (Ultra Large Scale Integration) Super large scale integrated circuit is more than 1030,000
. According to the function classification, according to IC, it can be divided into four major classes.
Memory: can be divided into volatile Memory (such as DRAM, SRAM, etc.) and non-volatile Memory (such as flash)
MICON: Micro Computer, can be divided into MPU and Mcumpu - Micro Processor, integrated with CPU and peripheral circuits on a Chip, mainly for MCP-Micro Controller Unit, such as PC, small-scale CPU and Memory, I / O, BUS Wait for integrated on a CHIP, mainly for embedded electronic devices
ASIC: Application Specific IC, specific use integrated circuit; generally refers to the integration of various electronic components in a piece of CHIP according to its own product, according to its own product.
System LSI / SOC: System LSI refers to an IC that integrates multiple LSIs such as CPU, Memory, Peripheral Circuit, ASICs in a CHIP on a CHIP. SOC (System ON A CHIP) is an IC-integrated IC-integrated IC that is larger than the System LSI, which can be integrated with CPU, Memory, Chip Set, Video Chip, etc.
2, dedicated function IC For the needs of various products, a variety of high-performance ICs are produced, and below is some species: Flash MemoryDSP (Digital Signal Processor) MPEGCODEC (CODER DECODER) Reference: http: // www. AVE.NIKON.CO.JP/pec_j/society/story0201.htm
