Description: W78E51B specifications W78E51B is broadband rates, low-power 8-bit microcontroller. Its instruction set with the standard 8051 instruction set compatible. W78E51B contains 4K bytes of Flash EPROM; 128 bytes of RAM; Four eight two-way, the bit addressable I/O port; An additional four I/O P4; Two 16-bit timer/counter; A hardware Watchdog timer and a serial port. These external equipment by a seven interrupt source and two interrupts the interruption system. For the convenience of users and certification program, W78E51B intron Flash EPROM programming and allow---- literacy. Once the code is finalized, users will be able to source protection. W78E51B are two kinds of power saving mode, idle mode and power down mode, the two models can be controlled by the software to choose. Idle mode
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