收藏本站
W25Q80BV
6.2.38
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
Security Register #1
Security Register #2
Security Register #3
A23-16
00h
00h
00h
A15-12
0001
0010
0011
A11-8
0000
0000
0000
A7-0
Byte Address
Byte Address
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
Mode 3
0
1
2
3
4
5
6
7
8
9
10
28
29
30
31
32
33
34
35
36
37
38
39
CLK
Mode 0
Instruction (42h)
24-Bit Address
Data Byte 1
DI
(IO 0 )
23
*
22
21
3
2
1
0
7
*
6
5
4
3
2
1
0
* = MSB
/CS
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
Mode 3
CLK
Mode 0
Data Byte 2
Data Byte 3
Data Byte 256
DI
(IO 0 )
0
7
*
6
5
4
3
2
1
0
7
*
6
5
4
3
2
1
0
7
*
6
5
4
3
2
1
0
Figure 36. Program Security Registers Instruction Sequence
Publication Release Date: October 09, 2013
- 57 -
Revision I
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
W25Q80BWSSIG IC FLASH SPI 8MBIT 8SOIC
W25X40BVZPIG IC SPI FLASH 4MBIT 8WSON
W25X64VZEIG IC FLASH 64MBIT 75MHZ 8WSON
W25X80AVDAIZ IC FLASH 16MBIT 100MHZ 8DIP
W29GL032CB7A IC FLASH 32MBIT 70NS 48TFBGA
W29GL064CB7S IC FLASH 64MBIT 70NS 48TSOP
W29GL128CL9T IC FLASH 128MBIT 90NS 56TSOP
W631GG6KB-15 IC DDR3 SDRAM 1GBIT 96WBGA
相关代理商/技术参数
W25Q80BVSNIG TR 制造商:Winbond Electronics Corp 功能描述: 制造商:Winbond Electronics Corp 功能描述:IC FLASH 8MBIT 104MHZ 8SOIC
W25Q80BVSNIP 制造商:WINBOND 制造商全称:Winbond 功能描述:8M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI
W25Q80BVSSAG 制造商:WINBOND 制造商全称:Winbond 功能描述:8M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI
W25Q80BVSSAP 制造商:WINBOND 制造商全称:Winbond 功能描述:8M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI
W25Q80BVSSIG 功能描述:IC FLASH 8MBIT 8SOIC RoHS:是 类别:集成电路 (IC) >> 存储器 系列:SpiFlash® 标准包装:1 系列:- 格式 - 存储器:闪存 存储器类型:闪存 - NAND 存储容量:4G（256M x 16） 速度:- 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP I 包装:Digi-Reel® 其它名称:557-1461-6
W25Q80BVSSIG TR 制造商:Winbond Electronics Corp 功能描述:SPIFLASH, 8M-BIT, 4KB UNIFORM 制造商:Winbond Electronics Corp 功能描述:IC FLASH 8MBIT 104MHZ 8SOIC
W25Q80BVSSIG/REELS 制造商:Winbond Electronics Corp 功能描述:
W25Q80BVSSIG-T 制造商:Winbond Electronics 功能描述:8MB SPI FLASH