LS2051 Datasheet

时间: 2009-07-18 来源: 浏览量:

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LS2051 (also refer to LS4051) is high performance eight bit microcomputer designed and
manufactured by our company and is compatible with MCS-51 instruction set, and its internal
function, pin function, pin configuration, and electrical characteristics of pins are compatible with
AT89C2051. LS2051 supports simultaneous operation of two independent or associated programs.
The performance when only one program is executed is 1.27 times of that of AT89C2051, and the
processing capacity is 2.55 times of AT89C2051 when two programs are executed simultaneously.
Features
Compatible with MCS-51 instruction set，pins are compatible with AT89C2051.
2/4KB internal flash program memory, Endurance: 2000 times erase/write cycles.
3.0V to 5.5V operating range.
0Hz to 24 MHz frequencies.
Two-level of Encryption of Program Memory.
128×8B internal SRAM.
15 programmable I/O ports，20mA sink current，drives LED directly.
Six interrupt sources.
Two 16-bit timer and counter.
One programmable UART.
SPI programming interface.
One high-resolution on-chip Analog Comparator.
Low power idle and power-down modes.

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