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PM25LD512 Datasheet(PDF) 18 Page - List of Unclassifed Manufacturers

Part No. PM25LD512
Description  512Kbit/1 Mbit / 2 Mbit Single Operating Voltage Serial Flash Memory With 100 MHz Dual-Output SPI Bus
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Maker  ETC2 [List of Unclassifed Manufacturers]
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Pm25LD512/010/ 020
Confidential information
Chingis Technology Corp.
18
DRAFT Date: August, 2010, Rev:0.4
DEVICE OPERATION (CONTINUED)
FAST_READ COMMAND (FAST READ DATA) OPERATION
The FAST_READ instruction is used to read memory
data at up to a 100 MHz clock.
The FAST_READ instruction code is followed by three
address bytes (A23 - A0) and a dummy byte (8 clocks),
transmitted via the SI line, with each bit latched-in
during the rising edge of SCK. Then the first data byte
addressed is shifted out on the SO line, with each bit
shifted out at a maximum frequency fCT, during the
falling edge of SCK.
The first byte addressed can be at any memory
location. The address is automatically incremented
after each byte of data is shifted out. When the highest
address is reached, the address counter will roll over to
the 000000h address, allowing the entire memory to be
read with a single FAST_READ instruction. The
FAST_READ instruction is terminated by driving CE#
high (VIH).
Figure 13. Fast Read Data Sequence
SIO
SIO




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