TTSOP20 STC15W408AS Core Minimum System Board 51 Microcontroller Development Board Learning Board

Introduction of STC15W408AS series MCU 1 Enhanced 8051CPU 1T single clock machine cycle speed 7 12 times faster than ordinary 8051 20 faster than STC12 series 2 STC15W408AS series working voltage 5 5V 2 4V3 4K 8K 10K 12K 13K bytes of on chip Flash program memory more than 100 000 erase and write times4 On chip integrated 512 byte SRAM5 There is an on chip EEPROM function and the number of times of erasing is more than 100 000 times 6 ISP IAP programmable in system programmable in application no programmer emulator required7 8 channel 1O bit high speed ADC with 300 000 times second speed 3 way PWM can also be used as 3 way DA8 A total of 3 channels of capture compare units CCP PWM PCA can also be used to implement 3 timers or 3 external interrupts supporting rising falling edge interrupts or 3 channels of D A9 Internal high reliability reset 8 level optional reset threshold voltage can completely eliminate the external reset circuit10 Internal high precision R C clock ±1 temperature drift 40°C 85°C normal temperature temperature drift of 5 thousand internal clock from 5MHz 35MHz optional 5 5296MHz 11 0592MHz 22 1184 MHz 33 1776MHz Core board features 1 This core board is made of STC15W408AS TSSOP20 package chip which is small in size 2 led light can also be used as a power indicator only need to solder the resistor to the GND end The default soldering LED is connected to P10 3 Lead out 6 channels of VCC GND which is very conve