【应用】容量高达4Gbit的SPI Nand flash GD5F4GQ4UCYIG用于血氧PPG手环设计
现如今可穿戴健康监测设备发展迅猛，智能手环一直是可穿戴产品中非常热销的品类。笔者服务的客户需要一款可以连续监测整晚血氧数据的专用手环，同时可将PPG波形实时保存至本机用于后期分析。要求PPG波形采样率1024Hz，ADC采样位数18bit以上，并且本机至少可存储24小时数据。
从客户的需求来看，市场上现有的手环在功能参数上几乎都不满足要求，所以需要进行开发。手环的基本原理框图如下：
图1 手环原理框图
主控采用NRF蓝牙SoC，通过I2C接口读取血氧传感器数据，并存储至Flash存储器，也可通过蓝牙实时发送至APP进行展示；前端PPG血氧传感器为反射式原理，内置红光、红外光、绿光三个LED，可通过选择不同的灯光实现血氧检测，脉搏PPG波形检测；存储器采用兆易创新的SPI Nand flash GD5F4GQ4UCYIG，该产品是兆易创新继SPI NOR Flash之后推出的大容量、小体积、低功耗的系列高速存储器。在拥有大容量存储空间的基础上，同时又兼具了SPI NOR Flash的所有优势。选择该款存储器的依据如下：
1. 容量：客户要求可连续存储24小时数据，根据要求计算，采样率（1024Hz）×每个采样点占用字节数(3Byte) ×24小时（86400秒）≈253MB。另外再加上用于标记数据的时间戳和数据索引，至少需要300MB左右的空间。GD5F4GQ4UCYIG容量为4Gb，也就是512MB，完全满足要求。
2. 尺寸：因为产品形态是手环，所以对芯片尺寸非常敏感，占用面积必须小，该款芯片封装为WSON8，尺寸大小仅8*6mm，在电路板上占用面积仅48mm2，而同等容量的Parallel NAND Flash占用面积达到了240mm2。
3. 功耗：手环作为可穿戴设备，受体积限制通常电池容量较小，这就对器件的功耗有了更为严格的要求，该存储器静态电流最大仅为70μA，而在我们设计初期选型测试中，其他厂牌的存储器静态电流达到了200μA。在长时间的监测任务中，累计功耗差距还是相当可观的。
4. 寿命：该产品用于血氧及PPG数据采集存储，对存储器的重复擦写次数较高，数据的安全可靠至关重要，所以要求存储器具有高擦写寿命。GD5F4GQ4UCYIG擦写次数达到10万次，存储时间高达10年以上，而且具有硬件ECC校验，充分保证了数据的安全可靠。
5. 速率：在低功耗产品中，存储器高速的读写可以有效的减少对存储器件的操作时间，从而大大降低产品的平均功耗。GD5F4GQ4UCYIG页编程时间仅480us（典型值），块擦除时间仅3ms（典型值），页读取时间最大为120us（带有ECC）。
部分电路原理图如下，GD5F4GQ4UCYIG的外围非常简单，只需要两颗退耦电容，因为Flash在读写操作时消耗电流较大，芯片电源入口必须放置退耦电容。0.1uF（C1）电容可以滤除1MHz-100MHz的干扰，1uF（C2）电容可滤除低频的波动干扰。另外数据接口这里选用的是Quad SPI模式，读写速度更快。
图2 SPI Nand Flash原理图
以下是手环产品PCB，得益于GD5F4GQ4UCYIG的小封装尺寸，PCB大小仅为1.5*4cm。
图4 PCB
兆易创新推出的SPI Nand Flash系列，在容量、尺寸、功耗、寿命、速率方面都极具优势，完全满足了生理信号采集设备的各项需求。并且属于国产元件，货源相对稳定，批量出货快，值得推荐。
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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
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
GD5F2GM7xExxG SPI-NAND DATASHEET
型号- GD5F2GM7XEXXG,GD5F2GM7REWIG,GD5F2GM7REYJG,GD5F2GM7REYIG,GD5F2GM7REBIG,GD5F2GM7UEYIG,GD5F2GM7UEWIG,GDXXXXXXXXXXXX,GD5F2GM7UEYJG,GD5F2GM7UEBIG
【产品】容量为4G bit的GD5F4GQ4xC 系列SPI（串行外设接口）NAND Flash闪存
兆易创新(Gigadevice)公司新推出的 GD5F4GQ4xC 系列SPI（串行外设接口）NAND闪存为嵌入式系统提供了超高性价比的高容量非易失性存储器存储解决方案，基于业界标准的NAND闪存内核。
兆易创新企业介绍
型号- GD32F150,GD32F350,GD32E103,GD32E503,GD25UE,GD32E507,GD25LX,GD32E505,GD25LT,GD25LQ,GD25LR,GSL8165,GD25LE系列,GD32VF103,GD25LH,GD32E231,GD25LE,GD25LD,GD32E230,GD25WQ系列,GD25LF,GD32EPRT,GD25LB,GD32E232,GD32F207,GD32F405,GD32F205,GD32F403,GD32F407,GSL6150,GD55X,GD25X系列,GSL6157,GSL6159,GD25T系列,GD32FFPR,GSL7002,GSL7001,GD55T,GD32F170,GD5F系列,GD32F330,GD32F450,GD25WQ,GD32F130,GD25WD,GD25系列,GSL816X,GD5FX,GD25LX系列,GD9FX,GD32F103,GD25B,GD32F101,GD25E系列,GD25D,GD32F305,GD32F107,GD25F,GD25LT系列,GD32F303,GD32F105,GD25X,GD32F307,GD55LX,GD25WD系列,GD25Q,GSL6135,GD25R,GD55LT,GD25T,GD32F190
GD5F4GM8xExxG SPI-NAND DATASHEET
型号- GD5F4GM8REBIG,GD5F4GM8XEXXG,GD5F4GM8REWIG,GD5F4GM8UEWIG,GD5F4GM8REYJG,GD5F4GM8UEYJG,GDXXXXXXXXXXXX,GD5F4GM8UEYIG,GD5F4GM8UEBIG,GD5F4GM8REYIG
【经验】以GD5F4GQ6XEXXG系列为例，详解兆易创新SPI NAND Flash存储器结构
SPI NAND flash方案的优势是主控内可以不需要带有传统NAND的控制器，只需要有SPI的接口。并且FLASH内置ECC，这样就省掉主控去做硬件或软件ECC的功能。本文以GD5F4GQ6XEXXG系列为例详解兆易SPI NAND FLASH的内部结构。
【经验】可替代W25N01GV的GD5F1GQ4 SPI Nand Flash用于UPS监控数据存储中的设计注意事项
这些年随着半导体工业的快速发展，存储器件的容量和工业得到了快速提升，NAND flash就是存储器设计和工艺发展的结果。现在新型的处理器几乎都具备了与SPI nand falsh接口的能力，这又进一步促进了nand flash的高速发展。本文介绍了国产兆易创新的1Gbit nand flash GD5F1GQ4在UPS监控中的数据存储中的设计注意事项。
GD5F1GM7xExxG SPI-NAND DATASHEET
型号- GD5F1GM7REBIG,GD5F1GM7UEYJG,GD5F1GM7UEYIG,GDXXXXXXXXXXXX,GD5F1GM7REYIG,GD5F1GM7REYJG,GD5F1GM7XEXXG,GD5F1GM7REWIG,GD5F1GM7UEBIG,GD5F1GM7UEWIG
【产品】容量为1G bit的GD5F1GQ4xExxH系列SPI NAND Flash
兆易创新(Gigadevice)公司推出的 GD5F1GQ4xExxH 系列SPI（串行外设接口）NAND闪存为嵌入式系统提供了超高性价比的高容量非易失性存储器存储解决方案，基于业界标准的NAND闪存内核，是SPI-NOR和标准并行NAND闪存富有吸引力的替代品。
GD5F1GQ5xExxG SPI-NAND 1G-bit 2K+128BPageSize with E Version DATASHEET
型号- GD5F1GQ5UEWIG,GD5F1GQ5UEWJG,GD5F1GQ5UEYIG,GD5F1GQ5REBFG,GXXXXXXXXXXXX,GD5F1GQ5UEYJG,GD5F1GQ5REBJG,GD5F1GQ5REBIG,GD5F1GQ5REYFG,GD5F1GQ5UEBIG,GD5F1GQ5REWFG,GD5F1GQ5UEBFG,GD5F1GQ5REYIG,GD5F1GQ5REYJG,GD5F1GQ5XEXXG,GD5F1GQ5REWIG,GD5F1GQ5REWJG,GD5F1GQ5UEWFG,GD5F1GQ5UEYFG,GD5F1GQ5UEBJG
GD5F2GQ5xExxG 2G-bit 2K+128B Page Size with E Version DATASHEET
型号- GD5F2GQ5UEYJG,GD5F2GQ5UXXXG,GD5F2GQ5REZIG,GD5F2GQ5REYIG,GD5F2GQ5REZJG,GD5F2GQ5UEXXG,GD5F2GQ5REYJG,GD5F2GQ5UEBFG,GD5F2GQ5RXXXG,GD5F2GQ5REZFG,GD5F2GQ5REYFG,GD5F2GQ5UEBIG,GD5F2GQ5REBIG,GD5F2GQ5UEBJG,GD5F2GQ5REYIGR,GD5F2GQ5REBJG,GD5F2GQ5XEXXG,GD5F2GQ5UEZFG,GD5F2GQ5REXXG,GD5F2GQ5REBFG,GD5F2GQ5UEZIG,GD5F2GQ5UEYIG,GD5F2GQ5UEZJG,GD5F2GQ5UEYFG
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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。
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