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IS66WVR4M8BLL-R104WLI 数据表(PDF) 10 Page - Integrated Silicon Solution, Inc

部件名 IS66WVR4M8BLL-R104WLI
功能描述  1.8V/3.0V, 104MHz, Continuous Operation, SPI & QPI Protocol
PDF  34 Pages
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制造商  ISSI [Integrated Silicon Solution, Inc]
网页  http://www.issi.com
标志 ISSI - Integrated Silicon Solution, Inc

IS66WVR4M8BLL-R104WLI 数据表(HTML) 10 Page - Integrated Silicon Solution, Inc

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IS66/67WVR4M8ALL/BLL
Integrated Silicon Solution, Inc.- www.issi.com
10
Rev. A2
07/08/2024
4. Interface Description
4.1 ADDRESS SPACE
Serial PSRAM device is byte-addressable. 32Mb device is addressed with A21 to A0.
4.2 DRIVER STRENGTH
Driver strength is 50 ohm measured at ½ VDD.
4.3 POWER-ON STATUS
The device powers up in SPI mode.
At least one clock pulse of CE# HIGH is needed before beginning any operations.
4.4 COMMAND/ADDRESS LATCHING TRUTH
The device recognizes the following commands specified by the various input methods.
Table 4.1 Commands recognized by the device
SPI Mode
QPI Mode
Command
Code
CMD
Add
Wait
Cycle
DIO
Max
Freq.
CMD
Add
Wait
Cycle
DIO
Max
Freq.
Read
03h
S
S
0
S
33
Q
Q
4
Q
84
Fast Read
0Bh
S
S
8
S
104
Q
Q
4
Q
84
Quad IO Read
EBh
S
Q
6
Q
104
Q
Q
6
Q
104
Write
02h
S
S
0
S
104
Q
Q
0
Q
104
Quad IO Write
38h
S
Q
0
Q
104
Q
Q
0
Q
104
Enter QPI mode
35h
S
-
-
-
-
NA
Exit QPI mode
F5h
NA
Q
-
-
-
104
RESET Enable
66h
S
-
-
-
104
Q
-
-
-
104
RESET
99h
S
-
-
-
104
Q
-
-
-
104
Read ID
9Fh
S
S
0
S
104
Q
-
6
Q
104
DPD mode Entry
B9h
S
-
-
-
104
Q
-
-
-
104
Note:
1. 03h command in QPI mode is the same with and 0Bh command in QPI Mode.



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