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W25Q80BWSVIP 데이터시트(PDF) 54 Page - Winbond

부품명 W25Q80BWSVIP
상세설명  1.8V 8M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI
PDF  74 Pages
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제조업체  WINBOND [Winbond]
홈페이지  http://www.winbond.com
Logo WINBOND - Winbond

W25Q80BWSVIP 데이터시트(HTML) 54 Page - Winbond

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W25Q80BW
- 54 -
7.2.35
Read JEDEC ID (9Fh)
For compatibility reasons, the W25Q80BW provides several instructions to electronically determine the
identity of the device. The Read JEDEC ID instruction is compatible with the JEDEC standard for SPI
compatible serial memories that was adopted in 2003. The instruction is initiated by driving the /CS pin
low and shifting the instruction code “9Fh”. The JEDEC assigned Manufacturer ID byte for Winbond (EFh)
and two Device ID bytes, Memory Type (ID15-ID8) and Capacity (ID7-ID0) are then shifted out on the
falling edge of CLK with most significant bit (MSB) first as shown in figure 33. For memory type and
capacity values refer to Manufacturer and Device Identification table.
/CS
CLK
DI
(IO
0)
DO
(IO
1)
Mode 0
Mode 3
0
1
2
3
4
5
6
7
Instruction (9Fh)
High Impedance
8
9
10
12
13
14
15
Capacity ID7-0
/CS
CLK
DI
(IO
0)
DO
(IO
1)
16
17
18
19
20
21
22
23
Manufacturer ID (EFh)
24
25
26
28
29
30
7
6
5
4
3
2
1
0
*
27
15
Mode 0
Mode 3
11
7
6
5
4
3
2
1
0
*
Memory Type ID15-8
= MSB
*
Figure 33. Read JEDEC ID Instruction Sequence



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