LS2051 mcu equivalent, 8-bit mcu.
z Compatible with MCS-51 instruction set，pins are compatible with AT89C2051. z 2/4KB internal flash program memory, Endurance: 2000 times erase/write cycles. z 3.0V to 5..
LS2051 contains 2K bytes of program memory (LS4051 contains 4K bytes), 128 byte of data memory (SRAM), two 16-bit timer/counter, one five-vector secondary interrupt architecture , a single-kernel for execute two programs, fifteen IO ports, a full dup.
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