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參數(shù)資料
| 型號： | W25Q64CVSSAG |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | PROM |
| 英文描述： | 64M X 1 SPI BUS SERIAL EEPROM, PDSO8 |
| 封裝： | 0.208 INCH, GREEN, SOIC-8 |
| 文件頁數(shù)： | 58/79頁 |
| 文件大?。?/td> | 1086K |
| 代理商： | W25Q64CVSSAG |
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W25Q64CV
Publication Release Date: April 01, 2011
- 61 -
Revision C
7.2.38 Program Security Registers (42h)
The Program Security Register instruction is similar to the Page Program instruction. It allows from one
byte to 256 bytes of security register data to be programmed at previously erased (FFh) memory locations.
A Write Enable instruction must be executed before the device will accept the Program Security Register
Instruction (Status Register bit WEL= 1). The instruction is initiated by driving the /CS pin low then shifting
the instruction code “42h” followed by a 24-bit address (A23-A0) and at least one data byte, into the DI pin.
The /CS pin must be held low for the entire length of the instruction while data is being sent to the device.
ADDRESS
A23-16
A15-12
A11-8
A7-0
Security Register #1
00h
0 0 0 1
0 0 0 0
Byte Address
Security Register #2
00h
0 0 1 0
0 0 0 0
Byte Address
Security Register #3
00h
0 0 1 1
0 0 0 0
Byte Address
The Program Security Register instruction sequence is shown in Figure 36. The Security Register Lock
Bits LB[3:1] in the Status Register-2 can be used to OTP protect the security registers. Once a lock bit is
set to 1, the corresponding security register will be permanently locked, Program Security Register
instruction to that register will be ignored (See 7.1.9, 7.2.21 for detail descriptions).
/CS
CLK
DI
(IO
0)
Mode 0
Mode 3
0
1
2
3
4
5
6
7
Instruction (42h)
8
9
10
28
29
30
39
24-Bit Address
23
22
21
3
2
1
*
/CS
CLK
DI
(IO )
40
0
41
42
43
44
45
46
47
Data Byte 2
48
49
50
52
53
54
55
20
72
7
6
5
4
3
2
1
0
51
39
0
31
0
32
33
34
35
36
37
38
Data Byte 1
7
6
5
4
3
2
1
*
Mode 0
Mode 3
Data Byte 3
20
73
20
74
20
75
20
76
20
77
20
78
20
79
0
Data Byte 256
*
7
6
5
4
3
2
1
0
*
7
6
5
4
3
2
1
0
*
= MSB
*
Figure 36. Program Security Registers Instruction Sequence
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W25Q64CVSSAP | 制造商:WINBOND 制造商全稱:Winbond 功能描述:3V 64M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q64CVSSIG | 功能描述:IC SPI FLASH 64MBIT 8-SOIC RoHS:是 類別:集成電路 (IC) >> 存儲器 系列:SpiFlash® 標(biāo)準(zhǔn)包裝:1,000 系列:- 格式 - 存儲器:EEPROMs - 串行 存儲器類型:EEPROM 存儲容量:4K (512 x 8) 速度:400kHz 接口:I²C，2 線串口 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-MFP 包裝:帶卷 (TR) |
| W25Q64CVSSIP | 制造商:WINBOND 制造商全稱:Winbond 功能描述:3V 64M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q64CVTCAG | 制造商:WINBOND 制造商全稱:Winbond 功能描述:3V 64M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q64CVTCAP | 制造商:WINBOND 制造商全稱:Winbond 功能描述:3V 64M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
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