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

时间： 2020-02-26 来源：兆易创新

技术问答

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。

发送到邮箱 |
+1 赞 0
收藏
评论 0
| 转发至：

本文由黄昏提供，版权归世强硬创平台所有，非经授权，任何媒体、网站或个人不得转载，授权转载时须注明“来源：世强硬创平台”。

全部评论（0）

暂无评论

【经验】以兆易创新GD25Q80C为例介绍Nor Flash的安全寄存器及安全寄存器OTP锁

本文主要以兆易创新GD25Q80C为例介绍Nor Flash的安全寄存器(Security Registers)以及安全寄存器的OTP锁。GD25Q80C的安全寄存器大小为4*256-Byte。这4个256字节的安全寄存器，可以独立进行读取和写入数据。安全寄存器主要用于存储安全性和其他重要信息，这些信息与主存储器内的信息是分开存储的。安全寄存器是独立的一个存储部分。

设计经验发布时间 : 2020-03-09

【经验】以兆易创新GD25Q80C为例，介绍Nor Flash的Block Protect(块保护)功能

Nor Flash的Block Protect(块保护)功能可以通过软件设置保护特定区域不被擦除(Erase)或写入数据(Page Program)。本文主要以兆易创新的GD25Q80C为例，介绍Nor Flash的Block Protect(块保护)功能。

设计经验发布时间 : 2020-02-13

【经验】兆易创新Nor Flash存储器结构介绍，以GD25Q127C为例

兆易创新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。在嵌入式开发中经常要用到Nor Flash扩大系统的存储空间，了解Flash的内部存储结构是写驱动操作Flash的前提。本文主要以兆易创新的GD25Q127C为例，介绍兆易Nor Flash的存储器结构，来帮助刚接触到Nor Flash的用户。

设计经验发布时间 : 2019-09-07

Gigadevice（兆易创新）存储器/32位通用型MCU/智能人机交互传感器/电源产品选型指南（中文）

目录- 公司简介 GD32 MCU ARM® Cortex®32位通用MCU GD30 PMU SPI NOR FLASH SPI NAND Flash 并口NAND Flash Flash产品封装形式电容触控芯片指纹传感器 DDR3L DDR4L

型号- GD32E505ZCT6,GD32E230F8V6,GD32F150,GD25LE128E,GD25LD05C,GD32F205ZKT6,GD32E507RCT6,GD32F101VDT6,GSL6182GS1,GD32L233KBQ6,GD32F330G6U6,GD32F427VEH6,GD32F427RET6,GD32F427VKT6,GD32VF103,GD32F103C4T6,GD32F130G4U6,GD32F105RFT6,GDP2A8LM-WA,GD32F350K4U6,GDP2A8LM-WB,GD32F303VBT6,GD32F207RKT6,GD9FU8GXE2A,GD32F407IKH6,GD32F310C8T6,GD32E232K8Q7,GD32F150C4T6,GD32F403RGT6,GD25LX512ME,GD32F403VGH6,GD9FU4GXF2A,GD32VF103VBT6,GD5F4GM8RE,GD32F107RBT6,GD32F101TBU6,GD32F101C8T6,GD32F103ZET6,GD32E230F6P6,GD25LE16E,GD32F103RIT6,GD32F305ZET6,GD32F307RCT6,GD25Q16C,GD32F350C6T6,GD25Q16E,GD32F101VET6,GD32E103T8U6,GD32F470ZIT6,GD5F1GM7UE,GD9FU4GXF3A,GD32F101ZKT6,GD32VF103C6T6,GD25LT512ME,GD32F207ZET6,GD32C103TBU6,GD55LT02GE,GSL3692,GD25WD40E,GD32E508VET6,GD32F105RET6,GSL2681C,GD32EPRTVDT6,GD32E503CET6,GD25WD40C,GD32F303VCT6,GD32F303ZIT6,GD25LH32E,GD32E230C4T6,GDP1BFLM-IB,GDP1BFLM-IA,GD32L233C8T6,GD25F128F,GD25WQ80E,GD9FU1G8F2D,GD32F407VET6,GD32F205VCT6,GD32F103R8T6,GD9FU4GXF4B,GD32F407ZKT6,GD32F303CGT6,GD32F103ZDT6,GD32F107VGT6,GD25LB512ME,GD32F470,GSL2338,GD32F350,GD32F205VGT6,GD5F1GM7RE,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,GD32F307RET6,GD25WR256E,GD32F310K8U6,GDQ2A8AA-WE,GD32F470ZGT6,GD32F350C8T6,GD32F150K4U6,GD32F101ZIT6,GD32F405VGT6,GD32F207ZGT6,GSL3670D,GD32VF103TBU6,GD32VF103C8T6,GDQ2A8AA-WQ,GD25R512ME,GD32F101VCT6,GD32F105RGT6,GD32E503CCT6,GD25WD20C,GD25WD20E,GD32F470VKH6,GD32E23X系列,GD25R32C,GD25LH40E,GD32F425VKH6,GD32F303ZGT6,GD32F103ZFT6,GD32F425RKT6,GD32F205VET6,GD32F303CET6,GD32F107RCT6,GD32W515PIQ6,GD32F425ZGT6,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,GD32F4系列,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,GD32F303VGT6,GDQ2BFAA-WJ,GD32E232E4U7,GD25LX256E,GD32F205ZET6,GD32E5,GD25LD80C,GD32F407ZGT6,GD25LD80E,GD32E1,GD32F310F8P6,GD25LQ255E,GD32F3系列,GD32F330K8T6,GSL1686F,GD32W515TIQ6,GD32F103VBT6,GD32F107RET6,GD32F425ZKT6,GD32E505ZET6,GD9FS4GXF2A,GD32F427VKH6,GD32F450VKT6,GD32F330K6U6,GD32F101VFT6,GD25D80E,GD32F427RKT6,GDQ2BFAA-WQ,GD32E5系列,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,GD32F303RET6,GD32F303VKT6,GD32E507,GD32F330K4U6,GD32E505,GD32F101RFT6,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,GD32F407RGT6,GD32E232E8U7,GSL6135N,GDP2A8LM-IA,GDP2A8LM-IB,GD32F30

选型指南 - 兆易创新 - 2022/1/26 PDF 中文下载

Gigadevice（兆易创新）存储器/32位通用型MCU/智能人机交互传感器/电源产品选型指南（英文）

目录- Company profile GD32 MCU 32-bit ARM® Cortex® MCUs GD30 PMU SPI NOR FLASH SPI NAND Flash Parallel NAND Flash Flash Package Options Capacitive Touchscreen Controller Fingerprint Sensor

型号- GD32E505ZCT6,GD32E230F8V6,GD32F150,GD25LE128E,GD32F3 SERIES,GD25LD05C,GD32F205ZKT6,GD32E507RCT6,GD32F101VDT6,GSL6182GS1,GD32L233KBQ6,GD32F330G6U6,GD32F427VEH6,GD32F427RET6,GD32F427VKT6,GD32VF103,GD32F103C4T6,GD32F130G4U6,GD32F105RFT6,GDP2A8LM-WA,GD32F350K4U6,GDP2A8LM-WB,GD32F303VBT6,GD32F207RKT6,GD9FU8GXE2A,GD32F407IKH6,GD32F310C8T6,GD32E232K8Q7,GD32F150C4T6,GD32F403RGT6,GD25LX512ME,GD32F403VGH6,GD9FU4GXF2A,GD32VF103VBT6,GD5F4GM8RE,GD32F107RBT6,GD32F101TBU6,GD32F101C8T6,GD32F103ZET6,GD32E230F6P6,GD25LE16E,GD32F103RIT6,GD32F305ZET6,GD32F307RCT6,GD25Q16C,GD32F350C6T6,GD25Q16E,GD32F101VET6,GD32E103T8U6,GD32F470ZIT6,GD5F1GM7UE,GD9FU4GXF3A,GD32F101ZKT6,GD32VF103C6T6,GD25LT512ME,GD32F207ZET6,GD32C103TBU6,GD55LT02GE,GSL3692,GD25WD40E,GD32E508VET6,GD32F105RET6,GSL2681C,GD32EPRTVDT6,GD32E503CET6,GD25WD40C,GD32F303VCT6,GD32F303ZIT6,GD25LH32E,GD32E230C4T6,GDP1BFLM-IB,GDP1BFLM-IA,GD32L233C8T6,GD25F128F,GD25WQ80E,GD9FU1G8F2D,GD32F407VET6,GD32F205VCT6,GD32F103R8T6,GD9FU4GXF4B,GD32F407ZKT6,GD32F303CGT6,GD32F103ZDT6,GD32F107VGT6,GD25LB512ME,GD32F470,GSL2338,GD32F350,GD32F205VGT6,GD5F1GM7RE,GD32W5 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

选型指南 - 兆易创新 - 2022/1/26 PDF 英文下载

【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。

应用方案发布时间 : 2021-08-24

【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。

器件选型发布时间 : 2019-12-26

GD25Q80C 3.3V Uniform Sector Dual and Quad Serial Flash

型号- 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

数据手册 - 兆易创新 - Version No 2.7 - 2019-1-14 PDF 英文下载查看更多版本

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

描述- 兆易创新汽车电子产品介绍

型号- 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

培训文档-商品应用及供应商介绍 - 兆易创新 PDF 中文下载

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

型号- 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

数据手册 - 兆易创新 - Version 2.7 - 2019-1-14 PDF 英文下载

兆易创新汽车市场产品介绍

型号- 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

商品及供应商介绍 - 兆易创新 - March 15, 2019 PDF 中文下载

世强开始做GD的FLASH了呀，正好找一款可以替代华邦W25Q80BW的flash。

推荐兆易创新（Gigadevice）NOR FLASH，型号：GD25LQ80C，其主要参数：容量8Mbit，工作电压1.65~2.1V，具有低功耗，典型待机电流9uA，编程/擦写次数≥100,000，数据保存周期长达20年。此外，GD25LQ80C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/1163317.html

技术问答发布时间 : 2019-03-18