STC15W201S series MCU is a single-chip microcontroller based on a high-performance 1T architecture 8051 CPU, which is produced by STC MCU Limited. It is a new generation of 8051 MCU of high speed, high stability, wide voltage range, low power consumption and super strong anti-disturbance. Besides, the STC15W201S series MCU is a MCU of super-advanced encryption, because it adopts the ninth generation of STC encryption technology. With the enhanced kernel, STC15W201S series MCU is faster than a traditional 8051 in executing instructions (about 8~12 times the rate of a traditional 8051 MCU), and has a fully compatible instruction set with traditional 8051 series microcontroller. External expensive crystal can be removed by being integrated internal high-precise R/C clock(f0.3%) with f1% temperature drift (-40ć~+85ć) while f0.6% in normal temperature (-20ć~+65ć) and wide frequency adjustable between 5MHz and 35MHz. External reset circuit also can be removed by being integrated internal highly reliable one with 16 levels optional threshold voltage of reset. The STC15W201S series MCU includes a high-speed asynchronous serial port----UART( can be regarded as 2 serial ports by shifting among 2 groups of pins), comparator and so on. STC15W201S series MCU is usually used in serial communication or electrical control or some occasion with strong disturbance.
DS28E18 Setup Guide for Remote I 2 C and SPI Sensors Featuring the DS2485 It is well established that the I 2 C and SPI communication protocols are designed to be used in short-distance, intra-board communication. This application note discusses the I 2 C and SPI bus extending capabilities of the DS28E18 1-Wire ® to I 2 C/SPI Bridge with Command Sequencer. Specifically, it covers important measures for setting up a long line, e.g., 100m communication with multiple I 2 C and SPI sensors and the benefits of using this device. Introduction The I 2 C and SPI communication protocols are well known to have short bus distances that range no more than a couple meters. Although solutions currently exist for extending these ranges, they are often complex and expensive. The DS28E18 , however, is a cost-efficient bridge-chip device that demonstrates the benefits of using the 1-Wire interface to get the most range out of complex I 2 C and SPI devices such as environmental sensors,...
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