一文解析时钟芯片的重要参数——PPM

威帆电子（WAVE）RTC产品选型指南

描述- 兴威帆具有经验丰富的开发工程师和应用工程师,二十多年来一直致力于公司自主知识产权RTC 芯片及模块产品的研发和技术支持,已开发出多款成熟的产品并大量生产、销售及出口。公司采用自主专利正向设计的主导产品实时时钟芯片出货量数以亿计,主要应用于对可靠性要求较高的产品上,如汽车类、安防类、家电类、水电气三表、工业类产品等等。兴威帆的高精度实时时钟芯片产品申请了多项发明专利,打破了国外产品长期以来的垄断地位,并且部分产品性能参数优于外方,为国家半导体供应链的安全做出了应有的贡献;公司的自主IC已获国家知识产权局多项布图登记证书。

型号- DS1302,SD2501A,SD2523API,SD2501B,SD2501C,SD2078,SD2501D,RX-8025T,SD2202A,SD2202B,DS1307,8010,SD8573,SD2400EP,SD2203AP,SD2204FLP,SD8578,SD2202F,SD2202C,SD2202D,SD2077,SD2501F,SD2401ELP,SD5016A,SD2505,SD2506,SD2507,SD2508,SD2505API,SD2069,SD2068,SD8208,SD8568,SD2500,SD25XX,SD2200EP,SD2503,SD2200系列,SD2501ELP,SD8563,SD8200,SD2400系列,SD2201ELP,SD3031,SD2505AP,SD8564,SD8565,SD8840,SD5178,RX-8130,RX-8010,SD2059,SD2058,SD2506API,SD3025,SD2401EP,8025T,SD2405ALPI,SD8830,VT-200,SD2500系列,SD2203,SD2200,SD22XX,SD2503API,SD8825,SD2402EP,SD2201EP,SD3010,SD2400ELP,SD8939,SD2500EP,PCA2129,SD2431,SD2522API-G,SD2400B,SD2400A,SD8931,SD8810,SD8XXX,SD8938,SD2202ELP,SD2400F,RX-8900,SD2400E,PCF8563,SD2500ELP,SD2400D,SD30XX,SD2400C,SD2522系列,SD2400L,DS1340,DS1339,SD2522API,SD2401C,SD2401B,SD2401A,SD8800,SD2202EP,SD5XXX,SD8804,RA4000,SD2401F,SD3077,SD3078,SD2507AP,SD2401D,S-35390,SD2402ELP,SD2503AP,PCF85063,SD2501EP,DS3231,SD2401L,SD3068,SD2402D,SD2402C,SD2402B,SD2402A,SD3900,SD8198,M41T00,SD2200F,SD2403API,SD2200C,SD2200D,SD2402F,SD2200A,SD2200B,SD2010,SD8190,RA-8804,SD2200ELP,SD8908,SD2404,SD2403,SD2402,SD2401,SD2523API-G,SD2400,SD2500A,SD2500B,SD2500C,SD3178,SD2522APIW-G,SD2201A,SD2520,SD24XX,SD6200A,SD2522,MS621,SD2523,SD8902,SD2405,SD2431API,SD2201F,SD2404FLPI,SD2201D,SD8589,SD2201B,SD2201C,SD2500D,SD20XX,DS3010,SD2500F,BQ32000

SD8939 实时时钟芯片

型号- SD8939

SD8931 内置晶振、全温度补偿的实时时钟芯片

型号- SD8931

【视频】兴威帆高可靠性、具有1pps卫星同步功能，全球超小封装RTC芯片

描述- SD8565是一种具有标准IIC接口的实时时钟芯片，CPU可使用该接口通过四位地址寻址来读写片内16字节寄存器的数据（包括时间寄存器、报警寄存器、控制寄存器等）；内置单路定时/报警中断输出,报警中断时间最长可设置为一个月；具有独立的频率脉冲输出脚。

型号- SD8540,SD25,SD24,SD8565,SD30,SD20,SD8804,SD80

SD8902 内置电源管理、通信校验的实时时钟芯片

型号- SD8902SF,SD8902SG,SD8902

威帆电子（WAVE）实时时钟IC(RTC)/显示驱动器/电源管理IC/充电电池/仪器仪表/晶振选型指南

目录- 公司简介    实时时钟    显示驱动器    电源管理IC    充电电池    晶振    仪器仪表    SD系列时钟芯片   

型号- SD2501A,SD2523API,S-812C46AUA-C3A-T2,SD2501B,SD2501C,SD2078,SD2501D,S-812C45AMC-C2Z-T2,S-812C51BMC-C5F-T2,S-812C24AY-X,SD2405-16,S-812C20AUA-C2A-T2,S-812C59AY-X,S-812C28AMC-C2I-T2,S-812C50AUA-C3E-T2,SD2400EP,S-812C32AMC-C2M-T2,SD2203AP,S-812C21BMC-C4B-T2,S-812C46AMC-C3A-T2,SD2077,S-812C45AUA-C2Z-T2,SD2501F,S-812C47BMC-C5B-T2,SD2401ELP,S-812C60AY-X,S-812C29AUA-C2J-T2,S-812C59AUA-C3N-T2,S-812C34BMC-C4O-T2,S-812C59BMC-C5N-T2,S-812C59AMC-C3N-T2,SD2505API,S-812C20AMC-C2A-T2,SD2069,SD2068,S-812C33BMC-C4N-T2,S-812C32AUA-C2M-T2,S-812C58AMC-C3M-T2,S-812C20BMC-C4A-T2,SD2500,S-812C33AUA-C2N-T2,S-812C44AY-X,SD2201ELP,SD3031,S-812C51AUA-C3F-T2,S-812C28AY-X,S-812C32AY-X,SK22XX,SD0432,S-812C48BMC-C5C-T2,SD2058,SD2506API,SD2404-24,S-812C27AMC-C2H-T2,S-812C47AUA-C3B-T2,S-812C55AY-X,S-812C58AUA-C3M-T2,SD2401EP,S-812C21AY-X,SD2400 系列,S-812C57AMC-C3L-T2,S-812C32BMC-C4M-T2,S-812C44AUA-C2Y-T2,S-812C46BMC-C5A-T2,S-812C47AY-X,SD2400AP,SD2402EP,S-812C50AMC-C3E-T2,S-812C,S-812C40AY-X,S-812C51AMC-C3F-T2,S-812C29AMC-C2J-T2,S-812C 系列,SD2400ELP,S-812C36AY-X,S-812C45BMC-C4Z-T2,S-812C53BMC-C5H-T2,S-812C25AY-X,SD2431,SD2522API-G,SD2400B,SD2400A,S-812C30AMC-C2K-T2,S-812C27BMC-C4H-T2,S-812C52AMC-C3G-T2,S-812C48AUA-C3C-T2,S-812C60AMC-C3O-T2,S-812C56AMC-C3K-T2,SD2202ELP,SD2400F,SD2500ELP,SD2400D,SD30XX,SD2400C,S-812C51AY-X,S-812C43AUA-C2X-T2,S-812C23BMC-C4D-T2,3-812C43AMC-G2X-T2,S-812C35AMC-C2P-T2,S-812C58BMC-C5M-T2,SD2401C,S-812C57BMC-C5L-T2,SD2401B,SD2401A,S-812C57AUA-C3L-T2,SD2202EP,SD2403-8,S-812C31AY-X,S-812C56AUA-C3K-T2,S-812C45AY-X,S-812C38AMC-C2S-T2,S-812C52AUA-C3G-T2,SD2401F,SD3077,SD3078,SD2401D,S-812C50BUC-C5E-T2,SD2402ELP,S-812C39AMC-C2T-T2,S-812C53AUA-C3H-T2,S-812C24BMC-C4E-T2,S-812C20AY-X,S-812C52BMC-C5G-T2,SD2522 系列,S-812C21AUA-C2B-T2,SD3068,SD2402D,S-812C26BMC-C4G-T2,S-812C29AY-X,SD2402C,SD2402B,SD2402A,S-812C50BMC-C5E-T2,S-812C46AY-X,S-812C56AY-X,S-812C56BMC-C5K-T2,SD2403API,SD2402F,S-812C39AY-X,S-812C22BMC-C4C-T2,S-812C31AMC-C2L-T2,S-812C54BMC-C5I-T2,S-812C30AY-X,S-812C28AUA-C2I-T2,S-812C33AMC-C2N-T2,S-812C27AUA-C2H-T2,SD2402,SD2401,SD2523API-G,SD2400,SD2500A,SD2500B,S-812C52AY-X,SD2500C,SD3178,S-812C35AY-X,S-812C25AUA-C2F-T2,SD2522,S-812C26AUA-C2G-T2,SD2431API,S-812C24AUA-C2E-T2,SD2404FLPI,S-812C28BMC-C4I-T2,SD20XX,SD2500D,SD2500 系列,SD2500F,S-812C22AUA-C2C-T2,S-812C29BMC-C4J-T2,S-812C41AY-X,S-812C23AUA-C2D-T2,S812,S-812C37AUA-C2R-T2,S-812C50AY-X,S-812C54AMC-C3I-T2,S-812C25BMC-C4F-T2,SD2202A,S-812C42AY-X,SD2202B,SD7128,S-812C41AUA-C2V-T2,S-812C42BMC-C4W-T2,SD2204FLP,SD2202F,SD2202C,S-812C55BMC-C5J-T2,SD2202D,S-812C26AY-X,S-812C34AMC-C20-T2,S-812C24AMC-C2E-T2,S-812C41AMC-C2V-T2,S-812C34AY-X,SD5016A,S-812C57AY-X,S-812C55AUA-C3J-T2,S-812C54AUA-C3I-T2,SD25XX,S-812C36AMC-C2Q-T2,SD2200EP,SD2501ELP,S-812C37BMC-C4R-T2,S-812C37AMC-C2R-T2,S-812C34AUA-C20-T2,S-812C38BMC-C4S-T2,S-812C38AY-X,S-812C53AMC-C3H-T2,SD7218A,S-812C40AUA-C2U-T2,S-812C42AUA-C2W-T2,SD3302,S-812C43BMC-C4X-T2,S-812C41BMC-C4V-T2,SD2405ALPI,S-812C23AMC-C2D-T2,S-812C49AUA-C3D-T2,VT-200,S-812C30BMC-C4K-T2,S-812C25AMC-C2F-T2,S-812C55AMC-C3J-T2,SD2200,SD2503API,SD7218,SD2201EP,S-812C53AY-X,S-812C23AY-X,S-812C49AY-X,S-812C44BMC-C4Y-T2,S-812C33AY-X,SD2500EP,S-812C26AMC-C2G-T2,SD0418,S-812C39AUA-C2T-T2,S-812C49BMC-C5D-T2,S-812C31BMC-C4L-T2,S-812C22AMC-C2C-T2,S-812C35AUA-C2P-T2,S-812C40BMC-C4U-T2,S-812C48AMC-C3C-T2,S-812C43AY-X,S-812C31AUA-C2L-T2,SD2522API,S-812C27AY-X,S-812C41AUA-C2 V-T2,S-812C21AMC-C2B-T2,3-812C42AMC-C2W-T2,S-812C35BMC-C4P-T2,SD2507AP,S-812C36BMC-C4Q-T2,SD2501EP,S-812C58AY-X,S-812C30AUA-C2K-T2,S-812C49AMC-C3D-T2,S-812C38AUA-C2S-T2,S-812C39BMC-C4T-T2,S-812C33BUC-C4N-T2,S-812C44AMC-C2Y-T2,SD2200F,SD2200C,SD2200D,SD2200A,SD2200B,S-812C42AMC-C2W-T2,SD2010,S-812C40AMC-C2U-T2,S-812C36AUA-C2Q-T2,SD2200ELP,S-812C47AMC-C3B-T2,S-812C22AY-X,SD2400API,SD2201A,S-812C48AY-X,SD6200A,SD24XX,MS621,SD2201F,SD2201D,S-812C37AY-X,SD2201B,SD2201C,SD2200 系列,S-812C54AY-X,S-812C60AUA-C3O-T2