參數(shù)資料
    型號: LH28F016SCN-L95
    英文描述: EEPROM|FLASH|2MX8|CMOS|SOP|44PIN|PLASTIC
    中文描述: 的EEPROM | FLASH動畫| 2MX8 |的CMOS |??苵 44PIN |塑料
    文件頁數(shù): 6/56頁
    文件大?。?/td> 373K
    代理商: LH28F016SCN-L95
    1 INTRODUCTION
    This datasheet contains LH28F160S5-L/S5H-L
    specifications. Section 1 provides a flash memory
    overview. Sections 2, 3, 4, and 5 describe the
    memory organization and functionality. Section 6
    covers electrical specifications. LH28F160S5-L/
    S5H-L flash memories documentation also includes
    ordering information which is referenced in
    Section 7.
    1.1
    The LH28F160S5-L/S5H-L are high-performance
    16 M-bit Smart 5 flash memories organized as
    2 MB x 8/1 MB x 16. The 2 MB of data is arranged
    in thirty-two 64 k-byte blocks which are individually
    erasable, lockable, and unlockable in-system. The
    memory map is shown in
    Fig.1
    .
    Product Overview
    Smart 5 technology provides a choice of V
    CC
    and
    V
    PP
    combination, as shown in
    Table 1
    , to meet
    system performance and power expectations. V
    PP
    at 5 V eliminates the need for a separate 12 V
    converter, while V
    PP
    = 5 V maximizes erase and
    write performance. In addition to flexible erase and
    program voltages, the dedicated V
    PP
    pin gives
    complete data protection when V
    PP
    V
    PPLK
    .
    Table 1 V
    CC
    and V
    PP
    Voltage Combination
    Offered by Smart 5 Technology
    Internal V
    CC
    and V
    PP
    detection circuitry auto-
    matically configures the device for optimized read
    and write operations.
    A Command User Interface (CUI) serves as the
    interface between the system processor and
    internal operation of the device. A valid command
    sequence written to the CUI initiates device
    automation. An internal Write State Machine (WSM)
    automatically executes the algorithms and timings
    necessary for block erase, full chip erase, (multi)
    word/byte write and block lock-bit configuration
    operations.
    A block erase operation erases one of the device’s
    64 k-byte blocks typically within 0.34 second (5 V
    V
    CC
    , 5 V V
    PP
    ) independent of other blocks. Each
    block can be independently erased 100 000 times
    (3.2 million block erases per device). Block erase
    suspend mode allows system software to suspend
    block erase to read data from, or write data to any
    other block.
    A word/byte write is performed in byte increments
    typically within 9.24 μs (5 V V
    CC
    , 5 V V
    PP
    ). A multi
    word/byte write has high speed write performance
    of 2 μs/byte (5 V V
    CC
    , 5 V V
    PP
    ). (Multi) word/byte
    write suspend mode enables the system to read
    data from, or write data to any other flash memory
    array location.
    Individual block locking uses a combination of bits
    and WP#, thirty-two block lock-bits, to lock and
    unlock blocks. Block lock-bits gate block erase, full
    chip erase and (multi) word/byte write operations.
    Block lock-bit configuration operations (Set Block
    Lock-Bit and Clear Block Lock-Bits commands) set
    and cleared block lock-bits.
    The status register indicates when the WSM’s block
    erase, full chip erase, (multi) word/byte write or
    block lock-bit configuration operation is finished.
    The STS output gives an additional indicator of
    WSM activity by providing both a hardware signal
    of status (versus software polling) and status
    masking (interrupt masking for background block
    erase, for example). Status polling using STS
    minimizes both CPU overhead and system power
    consumption. STS pin can be configured to
    different states using the Configuration command.
    The STS pin defaults to RY/BY# operation. When
    low, STS indicates that the WSM is performing a
    V
    CC
    VOLTAGE
    5 V
    V
    PP
    VOLTAGE
    5 V
    LH28F160S5-L/S5H-L
    - 6 -
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