【经验】8Mbit Nor Flash GD25Q80C的软硬件写保护(Write Protection)功能介绍

2020-02-26 兆易创新
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兆易创新2004年成立于美国硅谷,目前公司总部设在北京,专注于各类存储器和控制器的设计、研发和销售。GD是国内第一家存储器产品行业的上市企业,Flash累计出货量超过100亿颗。


GD25Q80C为兆易创新的8Mbit Nor Flash,拥有极高的性价比,且支持双SPI输入输出、四SPI输入输出。此外,GD25Q80C还提供了状态寄存器(Status Register)的软硬件写保护功能(SoftWare/Hardware Write Protection),本文主要对此功能进行简单介绍。


GD25Q80C通过状态寄存器(Status Register)的SPR1、SPR0位以及#WP(Write Protect)引脚来配置软件保护(Software Protection)、硬件保护(Hardware Protection)、电源锁定(Power Supply  Lock-Down)、一次性可编程保护(One Time Program)。SPR1、SPR0位于状态寄存器中的位置如下图。



关于SPR1、SPR0以及#WP引脚的配置关系如下图



各模式简单介绍如下

1、0-0-X:当SRP1、SPR0皆为0时,状态寄存器处于软件保护模式。这种模式也是芯片默认的模式。此时如果对状态寄存器进行写操作,只需在执行写许可命令(Write Enable command)之后即可。

2、0-1-0:此时SRP1为0,SRP0为1,#WP引脚为低电平。此时状态寄存器被锁定,任何方法都无法写入。

3、0-1-1:此时SRP1为0,SRP0为1,#WP引脚为高电平。此时状态寄存器解除锁定,状态寄存器可以在执行写许可命令(Write Enable command)之后写入。此时和软件保护的模式类似。

4、1-0-X:此时SRP1为1、SRP为0,状态寄存器将被保护直到经过掉电再上电的过程后,SRP1、SPR0会回到0-0的状态。此种模式为特殊产品所有,需要联系原厂获取更多细节。

5、1-1-X:此时SRP为1、SRP0为1,此时为一次可编程保护模式,状态寄存器将处于永久被保护的状态,从此无法写入。此种模式为特殊产品所有,需要联系原厂获取更多细节。


无论是写入状态寄存器还是写入Flash数据,抑或擦除Flash数据,都需要首先通过写许可命令(Write Enable command)清除写保护锁(Write Enable Latch (WEL))。所以当状态寄存器被保护无法写入时,Flash中的数据也只能被读取无法被擦除或改写。

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SERIES,GD32F450ZET6,GD32E230F6V6,GD32E103CBT6,GD9FU1GXF3A,GD32F105ZCT6,GD32F330G4U6,GD32F427VGH6,GD32F303RKT6,GD32F103CBT6,GD25LF128E,GD32E503ZET6,GD32F101VBT6,GD32F427RGT6,GD55LT01GE,GSL3676,GD5F2GQ5RE,GDP1BFLM-CB,GDP1BFLM-CA,GD32F130K8U6,GD32F305RGT6,GD30WS,GD25LR64E,GD32EPRT,GD32F150C6T6,GD32F310K6T6,GD25LF32E,GD32E103R8T6,GD32F103ZGT6,GD32F403VEH6,GD9FU1GXF2A,GD32F403RET6,GSL3680,GD32F350K6U6,GD32F101C6T6,GD32F403VKT6,GD32E505RET6,GD32F107RDT6,GD32E230G8U6,GD32F103RKT6,GD32E230F4P6,GDQ2A8AA-WJ,GD25LR256E,GD25LQ20E,GD32F130K8T6,GD25LQ32E,GD32F130,GD25LQ20C,GD32F305ZCT6,GD25LE255E,GD32E1 SERIES,GD32F307RET6,GD25WR256E,GD32F310K8U6,GDQ2A8AA-WE,GD32F470ZGT6,GD32F350C8T6,GD32F150K4U6,GD32F101ZIT6,GD32F405VGT6,GD32F207ZGT6,GSL3670D,GD32VF103TBU6,GD32VF103C8T6,GDQ2A8AA-WQ,GD25R512ME,GD32F101VCT6,GD32F105RGT6,GD32E503CCT6,GD25WD20C,GD25WD20E,GD32F470VKH6,GD25R32C,GD25LH40E,GD32F425VKH6,GD32F303ZGT6,GD32F103ZFT6,GD32F425RKT6,GD32F205VET6,GD32F303CET6,GD32F107RCT6,GD32W515PIQ6,GD32F425ZGT6,GD32F4 SERIES,GD32F101V8T6,GD5F1GQ5UEYIGR,GD25R256E,GD32F407ZET6,GD32F450VIT6,GD30DR8306KU,GD55X01GE,GSL7000A,GD32F205RKT6,GD32F101RBT6,GD32F330K8U6,GDP2BFLM-WB,GD32F103C8T6,GD32F330RBT6,GD32F105ZET6,GD25WB256E,GDP2BFLM-WA,GD32F101T6U6,GD32F150C8T6,GD32F207RGT6,GD32F130K6U6,GD32E507ZCT6,GD30WS8805EU,GD32F427IEH6,GDP1A8LM-IA,GD32VF103CBT6,GD25LR128E,GD32F403VCH6,GD32F103ZIT6,GDP1A8LM-IB,GD32F307ZCT6,GD32F403RCT6,GD32F350K8U6,GD32F350RBT6,GD32F107RFT6,GD32F403VIT6,GD32VF103R8T6,GD32C103RBT6,GD32F103VCT6,GSL6150N,GD32F130K6T6,GD30BC,GD5F2GQ5UE,GD32E230K4U6,GD32F307RGT6,GD55X02GE,GD9AS2GXF3A,GD32F150K6U6,GD32F470ZET6,GD32F305VCT6,GD25B64E,GD32F101RCT6,GD32F4,GD32F105R8T6,GD25B64C,GD32F405ZKT6,GD32F407IGH6,GD32F2,GD32F3,GD32F101VIT6,GD32F1,GD9AU4GXF3A,GD32F105ZDT6,GD32E503VET6,GD25LF255E,GD32F427ZET6,GD30WS8662DY,GD25WD80C,GD32F407RKT6,GD32F470VIH6,GD32F407VKH6,GD25LH16E,GD32E230C8T6,GD32E230K4T6,GDQ2BFAA-WE,GD32E23X SERIES,GD32F303VGT6,GDQ2BFAA-WJ,GD32E232E4U7,GD25LX256E,GD32F205ZET6,GD32E5,GD25LD80C,GD32F407ZGT6,GD25LD80E,GD32E1,GD32F310F8P6,GD25LQ255E,GD32F330K8T6,GSL1686F,GD32W515TIQ6,GD32F103VBT6,GD32F107RET6,GD32F425ZKT6,GD32E505ZET6,GD9FS4GXF2A,GD32F427VKH6,GD32F450VKT6,GD32F330K6U6,GD32F101VFT6,GD25D80E,GD32F427RKT6,GDQ2BFAA-WQ,GD32E507RET6,GD25WD80E,GSL1691F,GD32F105ZGT6,GD25D80C,GD32F101T4U6,GD32F103C6T6,GD25LF16E,GD32F350R4T6,GD9AS4GXF3A,GD32F405ZGT6,GD32F207IKT6,GD32F427IGH6,GD32F307ZET6,GD32F103ZKT6,GD32F403VGT6,GD32F350G4U6,GD32F130K4U6,GD32E103VBT6,GD25LQ16E,GD25B128E,GD32F103VET6,GSL1680F,GD25LQ128E,GD25LQ16C,GD9FU2GXF3A,GD25LQ128D,GD32E230F8P6,GD32F403VET6,GD32F130C8T6,GD30WS8815EU,GD32F305ZGT6,GD32F150K8U6,GD32F407IEH6,GD32F101VGT6,GD32W515,GD32F130K4T6,GD30DR8413EU,GD32F103TBU6,GD25B127D,GD32F207ZCT6,GD32VF103C4T6,GD32F105ZFT6,GD25B512ME,GD5F4GQ6UE,GD32E503VCT6,GD32F470VGH6,GD32F427ZGT6,GD9FS4GXF3A,GD32E508RET6,GD32F303ZKT6,GD32E230C6T6,GD32F303VET6,GD32E232E6U7,GD32F330K6T6,GDP1A8LM-CB,GD32L233KBT6,GD32F205ZGT6,GDP1A8LM-CA,GD32F107RGT6,GD32F107ZCT6,GD32F103VDT6,GD9AU2GXF3A,GD32L23X,GD32F450VET6,GD32F450ZKT6,GD25Q127C,GD32F330C8T6,GD32F205RGT6,GD32F101R6T6,GD30LD3301FU,GD32E503,GD30LD,GD25WD05C,GD32V SERIES,GD32F303RET6,GD32F303VKT6,GD32E507,GD32F330K4U6,GD32E505,GD32F101RFT6,GD32F1 SERIES,GD32E508,GDP1BFLM-WB,GD32F105VCT6,GD25D20C,GDP1BFLM-WA,GD55LX02GE,GD25D20E,GSL6186,GD32E103C8T6,GD32VF103R4T6,GD32F207RCT6,GD32F350R6T6,GD32F305VGT6,GD32F130F8P6,GD25LB32E,GD25LF80E,GD5F4GQ6RE,GD32F307ZGT6,GD32F207IET6,GD32E505VET6,GD32F107ZDT6,GD32F403ZKT6,GD32F103VGT6,GD32F350G6U6,GD32VF103T8U6,GD25LQ80C,GD32F450IKH6,GD32F403VCT6,GD32F403ZIT6,GD32F405VKH6,GD9FU4G8F2AMGI,GD32F310F4P6,GD32F130C6T6,GD32F310G8U6,GD9FS2GXF3A,GD32F150G4U6,GD32E230K8U6,GD32F103T4U6,GD32C103,GD25LQ80E,GD5F1GQ5UE,GDQ2A8AA-CE,GD32F101RGT6,GDQ2A8AA-CJ,GD32F105VBT6,GD25B256E,GD32F405RKT6,GD32F470VKT6,GD32E503RCT6,GD32F101ZCT6,GD9FU2GXF2A,GD25Q128E,GD32F407VGH6,GD32F150R4T6,GD32F,TWS耳机和充电盒,便携式医疗设备,PMSM电机,病人监护仪,清洁机器人,HEARING AIDS,电动工具,TABLET PANEL,ROBOTICS,HIGH PERFORMANCE POWER IC,PORTABLE MEDICAL EQUIPMENT,AEROMODEL,3-PHASE BLDC,BATTERY MANAGEMENT,航空模型,PMSM MOTORS,BATTERY CHARGERS,雄蜂,LOW POWER APPLICATIONS,三相BLDC,高性能功率集成电路,HEADSETS,PATIENT MONITORS,蓄电池充电器,AUTOMOTIVE,低功耗应用,ENERGY STORAGE,网卡,AFE,电信,CONSUMER ELECTRONICS,TWS EARBUDS&CHARGING CASE,手机,DRONES,INDUSTRIAL APPLICATION,POWER TOOLS,CLEANING ROBOTS,IOT,笔记本,NETWORKING AND COMMUNICATIONS,COMPUTING,INDUSTRIAL AUTOMATION,储能,机器人学,NOTEBOOK,助听器,MOBILE,耳机,RC TOYS,MOBILE,TELECOM,INDUSTRIAL,工业自动化,工控机,工业应用,WIRELESS INFRASTRUCTURE,遥控玩具,NETWORKING CARDS,IPC,电池管理,无线基础建设

2022/1/26  - 选型指南

【应用】国产Nor Flash GD25Q80C用于指纹识别模块存储,容量8Mbit,读写次数超过100000次

指纹识别模块是集指纹图像的采集、识别以及身份验证结果的显示为一体,软硬件相结合的系统,需要Nor Flash来存储原始指纹数据,推荐国产兆易创新的GD25Q80C系列串行闪存存储器,存储容量8M bit,实现最少100000个程序/擦除周期,保留数据20年,是指纹识别模块数据存储应用的优秀解决方案。

2021-08-24 -  应用方案

【选型】运用在流媒体后视镜上的数据存储车规级Flash GD25Q80CS2GR,性能稳定,性价比高

本文介绍了兆易创新的8Mbit Flash芯片GD25Q80CS2GR流媒体后视镜项目的使用,该芯片内存达到8Mbit,采用QSPI方式,数据通信速度快,能够提供4倍于标准的SPI接口。而在封装上采用了SOP8 208mil的封装。相比于其他欧美竞争产品,该产品最大的优势是在价格,能够降低成本,而另外一方面是在中美贸易战的前提下,国产的芯片在供应链上也会有更好的保障。

2019-12-26 -  器件选型

一个新项目准备用32M的flash,目前用的是4M的25p80,有没有推荐芯片?

高工您好,您说的25p80大小应该是8Mbit吧,32Mbit Nor Flash推荐兆易创新的GD25Q32C, 具体参数见数据手册:https://www.sekorm.com/doc/1163328.html

2021-06-02 -  技术问答

兆易创新(GigaDevice)国内首家车规级Nor Flash,助力新时代汽车发展——世强硬创沙龙2019

兆易创新汽车电子产品介绍

兆易创新  -  SPI NAND,ONFI NAND,存储产品,ONFI和,SPI和,NOR FLASH,NOR闪存,GD25Q127C,GD25LQ80C,GD25Q80C,GD25LX01GE,GD25LQ40C,GD25LQ64C,GD25LQ32D,GD25Q64C,GD25Q40C,GD25Q32C,GD25S513MD,GD25Q16C,GD25LT01GE,GD25LQ256D,GD25LT512ME,GD25Q257D,GD25LT256E,GD25X256E,GD25X512ME,GD25T256E,GD25LX256E,GD25T512ME,GD25LX512ME,GD25X01GE,GD25T01GE,GD25LQ16C,GD25LQ128D,车载网关,远程信息系统/TBOX,全液晶虚拟仪表,远程信息系统,ADAS 处理单元,传感模块,车联网,底盘系统,发动机控制单元,车身模块,智能驾仓,智能驾驶,数字仪表盘,车机/娱乐系统

培训文档-商品应用及供应商介绍

GD25Q80C 3.3V统一扇区双通道和四通道串行闪存

兆易创新  -  UNIFORM SECTOR DUAL AND QUAD SERIAL FLASH,统一扇区双串行和四串行闪存,GD25Q80CTJG,GD25Q80CPFG,GD25Q80CSJG,GD25Q80CNFG,GD25Q80CQJG,GD25Q80C,GD25Q80CPJG,GD25Q80CNJG,GD25Q80CWFG,GD25Q80CTFG,GD25Q80CWJG,GD25Q80CSFG,GD25Q80CQFG,GD25Q80CEFG,GD25Q80CEJG,GD25Q80CSIG,GD25Q80CNEG,GD25Q80CQIG,GD25Q80CPIG,GD25Q80CNIG,GD25Q80CWEG,GD25Q80CTEG,GD25Q80CWIG,GD25Q80CSEG,GD25Q80CQEG,GD25Q80CTIG,GD25Q80CPEG,GD25Q80CEEG,GDXXXXXXXXXXX,GD25Q80CEIG

2020-3-19  - 数据手册  - Version 2.8

GD25Q80C产品介绍

本资料详细介绍了GD25Q80C串行闪存的特性和操作。该产品支持标准SPI、双SPI和四SPI接口,具有快速编程/擦除速度、高时钟频率、软件/硬件写保护、低功耗和高级安全特性。资料涵盖了产品特性、内存组织、设备操作、数据保护、状态寄存器、命令描述、电气特性、订购信息和封装信息。

兆易创新  -  GD25Q80CTJG,GD25Q80CPFG,GD25Q80CSJG,GD25Q80CNFG,GD25Q80CQJG,GD25Q80C,GD25Q80CPJG,GD25Q80CNJG,GD25Q80CWFG,GD25Q80CTFG,GD25Q80CWJG,GD25Q80CSFG,GD25Q80CQFG,GD25Q80CEFG,GD25Q80CEJG,GD25Q80CSIG,GD25Q80CNEG,GD25Q80CQIG,GD25Q80CPIG,GD25Q80CNIG,GD25Q80CWEG,GD25Q80CTEG,GD25Q80CWIG,GD25Q80CSEG,GD25Q80CQEG,GD25Q80CTIG,GD25Q80CPEG,GD25Q80CEEG,GDXXXXXXXXXXX,GD25Q80CEIG

2018-8-28  - 数据手册  - Version No2.6

【产品】8M-bit,支持SPI、两IO/四IO的串行闪存GD25Q80C

兆易创新(Gigadevice)公司推出的GD25Q80C(8M-bit)串行闪存支持标准串行外设接口(SPI),并支持两IO/四IO:串行时钟,片选,串行数据I/O0(SI),I/O1(SO),I/O2(WP#)和I/O3(HOLD#)。双路I/O数据以240Mbits/s的速度传输,四路I/O和四路输出数据以480Mbits/s的速度传输。

2019-06-28 -  新产品

兆易创新汽车市场产品介绍

兆易创新  -  GD25LQ80C,GD25Q127C,GD25LX01GE,GD25Q80C,GD25LQ40C,GD25LQ32D,GD25LQ64C,GD25Q64C,GD25Q40C,GD25S513MD,GD25Q32C,GD25LT01GE,GD25Q16C,GD25LQ256D,GD25LT512ME,GD25Q257D,GD25LT256E,GD25X256E,GD25X512ME,GD25T256E,GD25LX256E,GD25T512ME,GD25LX512ME,GD25X01GE,GD25T01GE,GD25LQ16C,GD25LQ128D

March 15, 2019  - 商品及供应商介绍

兆易创新(Gigadevice)GD25Q80C 3.3V Uniform Sector Dual and Quad Serial Flash 数据手册

兆易创新  -  3.3V UNIFORM SECTOR DUAL AND QUAD SERIAL FLASH,3.3V均匀扇形双和四串行闪存,GD25Q80CPFG,GD25Q80CTJG,GD25Q80CSJG,GD25Q80CNFG,GD25Q80CQJG,GD25Q80C,GD25Q80CPJG,GD25Q80CNJG,GD25Q80CWFG,GD25Q80CTFG,GD25Q80CSFG,GD25Q80CWJG,GD25Q80CQFG,GD25Q80CEFG,GD25Q80CEJG,GD25Q80CSIG,GD25Q80CNEG,GD25Q80CQIG,GD25Q80CPIG,GD25Q80CNIG,GD25Q80CWEG,GD25Q80CTEG,GD25Q80CSEG,GD25Q80CWIG,GD25Q80CQEG,GD25Q80CPEG,GD25Q80CTIG,GD25Q80CEEG,GD25Q80CEIG

2019-1-14  - 数据手册  - Version 2.7

世强有可以替代镁光M25P80的FLASH吗?

推荐兆易创新(Gigadevice)NOR FLASH,型号:GD25Q80C ,其主要参数:容量8Mbit,工作电压2.7V~3.6V,具有低功耗,典型待机电流1uA,编程/擦写次数≥100,000,数据保存周期长达20年。此外,GD25Q80C具有三种工作温度,分别为-40℃~85℃,-40℃~105℃,-40℃~125℃,且可提供多种封装产品。具体参数见数据手册:https://www.sekorm.com/doc/1163330.html

2019-03-05 -  技术问答
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品牌:兆易创新

品类:MCU

价格:¥7.0000

现货:16,740

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品类:SPI NAND Flash

价格:¥16.0500

现货:8,795

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品类:SPI NOR Flash

价格:¥2.8800

现货:8,267

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价格:¥9.7091

现货:7,497

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价格:¥2.8813

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品类:NOR FLASH

价格:¥23.1660

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品类:NOR FLASH

价格:¥19.3230

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品类:NOR FLASH

价格:¥3.3396

现货:5,434

品牌:兆易创新

品类:NOR FLASH

价格:¥3.4700

现货:3,400

品牌:兆易创新

品类:NOR FLASH

价格:¥1.8400

现货:3,073

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语音/录音芯片定制

提供语音芯片、MP3芯片、录音芯片、音频蓝牙芯片等IC定制,语音时长:40秒~3小时(外挂flash),可以外挂TF卡或U盘扩容。

最小起订量: 1pcs 提交需求>

IC烧录代工及IC自动化烧录

拥有IC烧录机20余款,100余台设备,可以烧录各种封装的IC;可烧录MCU、FLASH、EMMC、NAND FLASH、EPROM等各类型芯片,支持WIFI/BT模组PCBA烧录、测试。

最小起订量: 1 提交需求>

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