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NZ48F4000L0ZBQ0 参数 Datasheet PDF下载

NZ48F4000L0ZBQ0图片预览
型号: NZ48F4000L0ZBQ0
PDF下载: 下载PDF文件 查看货源
内容描述: 1.8 ?伏?英特尔? StrataFlash㈢ ?无线存储器?与? 3.0伏? I / O ? ( L30 ) [1.8 Volt Intel StrataFlash㈢ Wireless Memory with 3.0-Volt I/O (L30)]
分类和应用: 存储无线
文件页数/大小: 100 页 / 1405 K
品牌: INTEL [ INTEL ]
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28F640L30, 28F128L30, 28F256L30  
8.2.2.2  
Synchronous read to write operation transition  
W21 - t  
W22 - t  
VHWL  
CHWL  
The AC parameters W21 (tVHWL- ADV# High to WE# Low) and W22 (tCHWL -Clock high to  
WE# low) are required when the device is in a synchronous mode and clock is active. A write bus  
cycle consists of two parts:  
the host provides an address to the flash device; and  
the host then provides data to the flash device.  
The flash device in turn binds the received data with the received address. When operating  
synchronously (RCR.15 = 0), the address of a write cycle may be provided to the flash by the first  
active clock edge with ADV# low, or rising edge of ADV# as long as the applicable cycle  
separation conditions are met between each cycle.  
If neither a clock edge nor a rising ADV# edge is used to provide a new address at the beginning of  
a write cycle (the clock is stopped and ADV# is low), the address may also be provided to the flash  
device by holding the address bus stable for the required amount of time (W5, tAVWH) before the  
rising WE# edge.  
Alternatively, the host may choose not to provide an address to the flash device during subsequent  
write cycles (if ADV# is high and only CE# or WE# is toggled to separate the prior cycle from the  
current write cycle). In this case, the flash device will use the most recently provided address from  
the host.  
Refer to Figure 22, “Write to Asynchronous Read Timing” on page 62, Figure 23, “Synchronous  
Read to Write Timing” on page 62, and Figure 24, “Write to Synchronous Read Timing” on  
page 63, for representation of these timings.  
8.2.3  
Read Operation During Buffered Programming Flowchart  
The multi-partition architecture of the device allows background programming (or erasing) to  
occur in one partition while data reads (or code execution) take place in another partition.  
To perform a read while buffered programming operation, first issue a Buffered Program set up  
command in a partition. When a read operation occurs in the same partition after issuing a setup  
command, Status Register data will be returned, regardless of the read mode of the partition prior to  
issuing the setup command.  
To read data from a block in other partition and the other partition already in read array mode, a  
new block address must be issued. However, if the other partition is not already in read array mode,  
issuing a read array command will cause the buffered program operation to abort and a command  
sequence error would be posted in the Status Register. See Figure 38, “Read While Buffered  
Programming Flowchart” on page 82 for more details.  
Note: Simultaneous read-while-Buffered EFP is not supported.  
Datasheet  
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