DatasheetsPDF.com

LS2051 Dataheets PDF



Part Number LS2051
Manufacturers HuNan Hochip Times Microelectronics
Logo HuNan Hochip Times Microelectronics
Description 8-Bit MCU
Datasheet LS2051 DatasheetLS2051 Datasheet (PDF)

www.DataSheet4U.com 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 .

  LS2051   LS2051



Document
www.DataSheet4U.com 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 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 5.5V operating range. z 0Hz to 24 MHz frequencies. z Two-level of Encryption of Program Memory. z 128×8B internal SRAM. z 15 programmable I/O ports,20mA sink current,drives LED directly. z Six interrupt sources. z Two 16-bit timer and counter. z One programmable UART. z SPI programming interface. z One high-resolution on-chip Analog Comparator. z Low power idle and power-down modes. Description 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 duplex serial port, a high-accuracy on-chip analogy comparator, oscillator and clock circuitry. The operating range of LS2051 is 0Hz to 24MHz, and supports the idle power saving mode and the power-down power saving mode which are software selectable. The idle mode stops the CPU, while allowing the SRAM, timer/counter, serial port and interrupt machine and the power-down system to continue functioning. The power-down mode saves the SRAM contents but freezes oscillator and turns all the internal clocks off. LS2051 achieves the function of double kernels, that is, it can execute one programming singly, and it can also execute associated or non-associated two programs concurrently. The performance of executing one program is 1.27 times of compatible chips, and that of 1 Update Date 5/27/2008-1-16 HuNan Hochip Times Microelectronics Co.,Ltd www.DataSheet4U.com processing two programs can reach 2.55 times of compatible chips at most. Pin Description Pin configuration and its multiplexing function of LS2051 are as Figure 1. Figure 1: z VCC:Supply voltage z GND:Ground LS2051 Pin Configuration z P1 port: an eight-bit programmable bi-directional I/O port. Pin P1.2 to P1.7 provide internal pull-ups. P1.0 and P1.1 serve as the positive input (AIN0) and the negative input (AIN1) of the on-chip comparator and with no internal pull-up, one can add pull-ups for the pins if needed. P1 port output buffer can absorb 20mA current and can drive LED directly. A pin of P1 can be used as input only after “1” is written into the pin; A pin can output “1” or “0” when “1” or “0” is writt.


LS2051 LS2051 LS4051


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)