System Development Board Core 51 SCM Learning Module STC15W408AS TTSOP20 for DIY Item Type: System Development Board Material: PCB 1. Enhanced 8051CPU, 1T, single clock and machine cycle, 7-12 times faster than ordinary 8051, 20% faster than STC12 series; 3. 4K/8K/10K/12K/13K section on chip Flash program storage, erasing and writing is more than 100,000 times; 4. On chip integrated 512 byte SRAM; 5. With on chip EEPROM function, the number of times of erasing and writing is more than 100,000 times; 6. ISP, IAP, in system programmable, in application programmable, no programmer or emulator required; 7. 8 channel 10 bit high speed ADC, the speed can be selected as 300,000 times per second, 3 channel PWM can also be used as 3 channel DA; 8. A total of 3 channel acquire and compare units (CCP, PWM, PCA), which can also be used to implement 3 timers or 3 external interrupts (support rising and falling edge interrupts) or 3 D/A; 10. Internal high accuracy R/C clock, ±1% temperature drift (-40℃-+85℃), normal temperature, temperature drift 5/1000, the internal clock can be selected from 5MHz-35MHz (5.5296MHz/11.0592MHz/22.1184 MHz/33.1776MHz).