SD2203APdatasheet.pdf 高精度实时时钟－SD2203AP(Ver1.3) 内置晶振、I2C 总线接口、定时中断输出 、高精度、免调校

单片机开发0011、采用实时时钟芯片DS1302+AT89C2051的红外遥控LED电子钟.zip

美信实时时钟芯片 (RTCs)全系列原理图库+PCB封装库（AD集成库），.IntLib后缀文件，拆分后文件为PcbLib+SchLib格式，Altium Designer原理图库+PCB封装库，集成库型号列表如下：Library Component Count : 548 Name Description ---------------------------------------------------------------------------------------------------- DS1243Y-120+ 64K NV SRAM with Phantom Clock, 5.0V, 28-Pin EDIP, 0 to 70 degC, Pb-Free DS1244W-120+ 256K NV SRAM with Phantom Clock, 3.3V, 28-Pin EDIP, 0 to 70 degC, Pb-Free DS1244W-120IND+ 256K NV SRAM with Phantom Clock, 3.3V, 28-Pin EDIP, -40 to 85 degC, Pb-Free DS1244WP-120+ 256K NV SRAM with Phantom Clock, 3.3V, 34-Pin PowerCap, 0 to 70 degC, Pb-Free DS1244WP-120IND+ 256K NV SRAM with Phantom Clock, 3.3V, 34-Pin PowerCap, -40 to 85 degC, Pb-Free DS1244Y-70+ 256K NV SRAM with Phantom Clock, 5.0V, 28-Pin EDIP, 0 to 70 degC, Pb-Free DS1244YP-70+ 256K NV SRAM with Phantom Clock, 5.0V, 34-Pin PowerCap, 0 to 70 degC, Pb-Free DS1248W-120+ 1024K NV SRAM with Phantom Clock, 3.3V, 32-Pin EDIP, 0 to 70 degC, Pb-Free DS1248W-120IND+ 1024K NV SRAM with Phantom Clock, 3.3V, 32-Pin EDIP, -40 to 85 degC, Pb-Free DS1248WP-120+ 1024K NV SRAM with Phantom Clock, 3.3V, 34-Pin PowerCap, 0 to 70 degC, Pb-Free DS1248WP-120IND+ 1024K NV SRAM with Phantom Clock, 3.3V, 34-Pin PowerCap, -40 to 85 degC, Pb-Free DS1248Y-70+ 1024K NV SRAM with Phantom Clock, 5.0V, 32-Pin EDIP, 0 to 70 degC, Pb-Free DS1248Y-70IND+ 1024K NV SRAM with Phantom Clock, 5.0V, 32-Pin EDIP, -40 to 85 degC, Pb-Free DS1248YP-70+ 1024K NV SRAM with Phantom Clock, 5.0V, 34-Pin PowerCap, 0 to 70 degC, Pb-Free DS1251W-120+ 4096K NV SRAM with Phantom Clock, 3.3V, 32-Pin EDIP, 0 to 70 degC, Pb-Free DS1251W-120IND+ 4096K NV SRAM with Phantom Clock, 3.3V, 32-Pin EDIP, -40 to 85 degC, Pb-Free DS1251WP-120+ 4096K NV SRAM with Phantom Clock, 3.3V, 34-Pin PowerCap, 0 to 70 degC, Pb-Free DS1251WP-120IND+ 4096K NV SRAM with Phantom Clock, 3.3V, 34-Pin PowerCap, -40

资源包含代码和PCB原理图。时钟芯片计时。四位共阴数码管显示时分秒时间，扩展的话也可以显示日月周年，数码管采用74HC138控制位选，74HC573控制段选。独立按键修改时间，LED状态指示灯。

时钟芯片DS1302的头文件，直接用于各种C语言开发

ZigBee、CC2530驱动DS1302 时钟芯片 通过串口输出时间，亲测可用。不过并没有加入协议栈，裸机程序出来加入协议栈也就不难了！

Epson RX-8025T英文原版数据手册，各寄存器功能说明详细，对使用此款实时时钟芯片的工程师很有参考价值。

实时时钟芯片DS3231 C语言驱动源码 C51软件工程文件

STM32F1系列RX8025时钟芯片在IIC总线上的模拟驱动

电子万年历毕业设计基于AT89C51单片机和DS1302时钟芯片电子万年历毕业设计基于AT89C51单片机和DS1302时钟芯片电子万年历毕业设计基于AT89C51单片机和DS1302时钟芯片