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    參數(shù)資料
    型號(hào): AT24C01-10TI-1.8
    廠商: ATMEL CORP
    元件分類: DRAM
    英文描述: 128 x 64 pixel format, LED or EL Backlight available
    中文描述: 128 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8
    封裝: 4.40 MM, PLASTIC, MO-153AA, TSSOP-8
    文件頁(yè)數(shù): 8/14頁(yè)
    文件大?。?/td> 261K
    代理商: AT24C01-10TI-1.8
    8
    AT24C01ASC/02SC/04SC/08SC/16SC
    1610B
    SEEPR
    04/04
    Write Operations
    BYTE WRITE:
    A write operation requires an 8-bit data word address following the
    device address word and acknowledgment. Upon receipt of this address, the EEPROM
    will again respond with a
    0
    (ACK) and then clock in the first 8-bit data word. Following
    receipt of the 8-bit data word, the EEPROM will output a
    0
    (ACK) and the addressing
    device, such as a microcontroller, must terminate the write sequence with a stop condi-
    tion. At this time the EEPROM enters an internally-timed write cycle, t
    WR
    , to the
    nonvolatile memory. All inputs are disabled during this write cycle and the EEPROM will
    not respond until the write is complete (refer to Figure 7).
    Figure 7.
    Byte Write
    PAGE WRITE:
    The 1K/2K EEPROM is capable of an 8-byte page write, and the 4K, 8K,
    and 16K devices are capable of 16-byte page writes.
    A page write is initiated the same as a byte write, but the microcontroller does not send
    a stop condition after the first data word is clocked in. Instead, after the EEPROM
    acknowledges receipt of the first data word, the microcontroller can transmit up to 7
    (1K/2K) or 15 (4K, 8K, 16K) more data words. The EEPROM will respond with a
    0
    (ACK) after each data word received. The microcontroller must terminate the page write
    sequence with a stop condition (refer to Figure 8).
    Figure 8.
    Page Write
    Note:
    * = DON
    T CARE bit for 1K
    The data word address lower three (1K/2K) or four (4K, 8K, 16K) bits are internally
    incremented following the receipt of each data word. The higher data word address bits
    are not incremented, retaining the memory page row location. When the word address,
    internally generated, reaches the page boundary, the following byte is placed at the
    beginning of the same page. If more than eight (1K/2K) or 16 (4K, 8K, 16K) data words
    are transmitted to the EEPROM, the data word address will
    roll over
    and previous data
    will be overwritten.
    ACKNOWLEGE POLLING:
    Once the internally timed write cycle has started and the
    EEPROM inputs are disabled, acknowledge polling can be initiated. This involves send-
    ing a start condition followed by the device address word. The read/write bit is
    representative of the operation desired. Only if the internal write cycle has completed
    W
    R
    I
    T
    E
    S
    T
    A
    R
    T
    WORD ADDRESS
    L
    S
    B
    DATA
    S
    T
    O
    P
    *
    (n)
    DATA (n)
    DATA (n + 1)
    DATA (n + x)
    相關(guān)PDF資料
    PDF描述
    AT24C02-10TI-1.8 128 x 64 pixel format, LED or EL Backlight available
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    AT24C02U3-10UU-1.8 TESTER IN-CIRCUIT DCR/ESR
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