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HM25Q64ASF Scheda tecnica(PDF) 48 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

Il numero della parte HM25Q64ASF
Spiegazioni elettronici  3V 64M-BIT SERIAL FLASH MEMORY WITH DUAL, QUAD SPI
PDF  76 Pages
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Produttore elettronici  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
Homepage  http://www.hmsemi.com/
Logo HMSEMI - Shenzhen Huazhimei Semiconductor Co., Ltd

HM25Q64ASF Scheda tecnica(HTML) 48 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

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Read Manufacturer / Device ID Quad I/O (94h)
The Read Manufacturer / Device ID Quad I/O instruction is an alternative to the Read Manufacturer / Device
ID instruction that provides both the JEDEC assigned manufacturer ID and the specific device ID at 4x
speed.
The Read Manufacturer / Device ID Quad I/O instruction is similar to the Fast Read Quad I/O instruction.
The instruction is initiated by driving the /CS pin low and shifting the instruction code “94h” followed by a
four clock dummy cycles and then a 24-bit address (A23-A0) of 000000h, but with the capability to input the
Address bits four bits per clock. After which, the Manufacturer ID for Winbond (EFh) and the Device ID are
shifted out four bits per clock on the falling edge of CLK with most significant bit (MSB) first as shown in
Figure 41. The Manufacturer and Device IDs can be read continuously, alternating from one to the other.
The instruction is completed by driving /CS high.
Figure 41. Read Manufacturer / Device ID Quad I/O Instruction
Note:
The “Continuous Read Mode” bits M(7-0) must be set to Fxh to be compatible with Fast Read Quad I/O instruction.
Mode 0
Mode 3
0
1
2
3
4
5
6
7
Instruction (94h)
High Impedance
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
5
1
4
0
23
Mode 0
Mode 3
IOs switch from
Input to Output
High Impedance
7
3
6
2
/CS
CLK
IO0
IO1
IO2
IO3
High Impedance
A23-16
A15-8
A7-0
(00h)
M7-0
MFR ID Device ID
Dummy
Dummy
/CS
CLK
IO
0
IO
1
IO
2
IO
3
23
0
1
2
3
5
1
4
0
7
3
6
2
5
1
4
0
7
3
6
2
5
1
4
0
7
3
6
2
5
1
4
0
7
3
6
2
5
1
4
0
7
3
6
2
5
1
4
0
7
3
6
2
5
1
4
0
7
3
6
2
5
1
4
0
7
3
6
2
5
1
4
0
7
3
6
2
24
25
26
27
28
29
30
MFR ID
(repeat)
Device ID
(repeat)
MFR ID
(repeat)
Device ID
(repeat)
HM



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