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    參數(shù)資料
    型號: AT89S8253-24PU
    廠商: Atmel
    文件頁數(shù): 16/60頁
    文件大小: 0K
    描述: IC 8051 MCU FLASH 12K 40DIP
    產品培訓模塊: MCU Product Line Introduction
    標準包裝: 10
    系列: 89S
    核心處理器: 8051
    芯體尺寸: 8-位
    速度: 24MHz
    連通性: SPI,UART/USART
    外圍設備: POR,WDT
    輸入/輸出數(shù): 32
    程序存儲器容量: 12KB(12K x 8)
    程序存儲器類型: 閃存
    EEPROM 大小: 2K x 8
    RAM 容量: 256 x 8
    電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
    振蕩器型: 內部
    工作溫度: -40°C ~ 85°C
    封裝/外殼: 40-DIP(0.600",15.24mm)
    包裝: 管件
    23
    3286P–MICRO–3/10
    AT89S8253
    Notes:
    1. SMOD0 is located at PCON.6.
    2. f
    osc = oscillator frequency.
    14. Serial Peripheral Interface
    The serial peripheral interface (SPI) allows high-speed synchronous data transfer between the
    AT89S8253 and peripheral devices or between multiple AT89S8253 devices. The AT89S8253
    SPI features include the following:
    Full-Duplex, 3-Wire Synchronous Data Transfer
    Master or Slave Operation
    Maximum Bit Frequency = f/4 (f/2 if in x2 Clock Mode)
    LSB First or MSB First Data Transfer
    Four Programmable Bit Rates in Master Mode
    End of Transmission Interrupt Flag
    Write Collision Flag Protection
    Double-Buffered Receive
    Double-Buffered Transmit (Enhanced Mode only)
    Wakeup from Idle Mode (Slave Mode only)
    The interconnection between master and slave CPUs with SPI is shown in Figure 14-1. The four
    pins in the interface are Master-In/Slave-Out (MISO), Master-Out/Slave-In (MOSI), Shift Clock
    (SCK), and Slave Select (SS). The SCK pin is the clock output in master mode, but is the clock
    input in slave mode. The MSTR bit in SPCR determines the directions of MISO and MOSI. Also
    notice that MOSI connects to MOSI and MISO to MISO. In master mode, SS/P1.4 is ignored and
    may be used as a general-purpose input or output. In slave mode, SS must be driven low to
    select an individual device as a slave. When SS is driven high, the slave’s SPI port is deacti-
    vated and the MOSI/P1.5 pin can be used as a general-purpose input.
    Figure 14-1. SPI Master-Slave Interconnection
    8-BIT SHIFT REGISTER
    MASTER
    CLOCK GENERATOR
    SPI
    MISO
    8-BIT SHIFT REGISTER
    SLAVE
    MISO
    MOSI MOSI
    SCK
    SS
    V
    CC
    MSB
    LSB
    MSB
    LSB
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    相關代理商/技術參數(shù)
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    AT89S8253-24PU SL383 制造商:Atmel Corporation 功能描述:8051 MCU 12KB ISP FLASH - 24MH
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