The difference between STC15F104E and STC15F104W 1 nbsp nbsp nbsp The external interrupt of STC15F104E is not easy to use while the external interrupt of STC15F104W can be used and there is an additional dedicated timer for power off wakeup two nbsp nbsp nbsp The timer of STC15F104E has T0 and T1 while the timer of STC15F104W has T0 and T2 three nbsp nbsp nbsp The pins are different STC15F104W Key introduction 1 Timer module T0 and T2 T0 is a 16 bit timer counter that can automatically reload the initial value when working in mode 0 an 8bit timer counter that can automatically reload when working in mode 2 and a decomposable counter when working in mode 3 The working mode of T2 is fixed at the 16 bit automatic reset initial value mode making it particularly suitable for the LED industry The timer module of this chip can generate higher precision timing 2 Kernel It adopts Y5 ultra high speed CPU core which is 20 faster than ordinary 1T Please refer to the instruction set for details There are a total of 111 instructions 3 Pin diagram P33 is RSTOUTLOW which outputs a low level after power on and reset It can also be set to a low or high level by software This pin can be used as a reset circuit for 16 bit or 32bit microcontrollers P34 can output the system clock so it can be used as 16 bit or 3 bit
