Y2K-Compliant, Nonvolatile Timekeeping RAMs

DESCRIPTION The DS1746 is a full function, year 2000 compliant (Y2KC), real-time clock/calendar (RTC) and 128k x 8 non-volatile static RAM. User access to all registers within the DS1746 is accomplished with a bytewide interface as shown in Figure 1. The Real Time Clock (RTC) information and cont

文件：453 Kbytes 页数：18 Pages

Dallas

Y2KC Nonvolatile Timekeeping RAM

文件：224.32 Kbytes 页数：18 Pages

Dallas

Y2K兼容、非易失时钟RAM

DS1746是一款全功能、符合2000年标准(Y2KC)的实时时钟/日历(RTC)和128k x 8非易失性静态RAM。用户对DS1746内所有寄存器的访问都通过字节宽接口实现，如图1所示。RTC信息和控制位驻留在RAM的前八个位置。RTC寄存器包含24小时二进制编码十进制(BCD)格式的世纪、年、月、日期、星期、时、分和秒数据。每月的日期和闰年会自动校正。RTC时钟寄存器采用双缓冲，以避免在时钟更新周期过程中访问错误数据。双缓冲系统还可以防止因访问时间寄存器数据而造成的时间损失，因为计时倒计时会持续不断进行。DS1746还包含自己的电源故障电路，当VCC电源处于超出容差的状态时，该电路会取消 • 集成NV SRAM、实时时钟、晶体、电源故障控制电路和锂能源\n\n• 时钟寄存器的访问方式与静态RAM的访问方式相同。这些寄存器驻留在RAM的前八个位置。\n\n• 世纪字节寄存器（即符合Y2K标准）\n\n• 具有完全的非易失性，在没有电源的情况下可运行超过10年\n\n• BCD编码的世纪、年、月、日期、星期、时、分、秒，自动闰年补偿有效期至2100年\n\n• 电池电压电平指示器标志\n\n• 电源故障写保护支持±10% VCC电源容差\n\n• 锂能源在首次通电之前会断电以保持新鲜度\n\n• 仅DIP模块标准JEDEC字节宽128k x 8静态RAM引脚排列\n\n• ;

ADI

亚德诺

Y2K-Compliant, Nonvolatile Timekeeping RAMs

DESCRIPTION The DS1746 is a full function, year 2000 compliant (Y2KC), real-time clock/calendar (RTC) and 128k x 8 non-volatile static RAM. User access to all registers within the DS1746 is accomplished with a bytewide interface as shown in Figure 1. The Real Time Clock (RTC) information and cont

文件：453 Kbytes 页数：18 Pages

Dallas

Y2K-Compliant, Nonvolatile Timekeeping RAMs

DESCRIPTION The DS1746 is a full function, year 2000 compliant (Y2KC), real-time clock/calendar (RTC) and 128k x 8 non-volatile static RAM. User access to all registers within the DS1746 is accomplished with a bytewide interface as shown in Figure 1. The Real Time Clock (RTC) information and cont

文件：453 Kbytes 页数：18 Pages

Dallas

Y2K-Compliant, Nonvolatile Timekeeping RAMs

DESCRIPTION The DS1746 is a full function, year 2000 compliant (Y2KC), real-time clock/calendar (RTC) and 128k x 8 non-volatile static RAM. User access to all registers within the DS1746 is accomplished with a bytewide interface as shown in Figure 1. The Real Time Clock (RTC) information and cont

文件：453 Kbytes 页数：18 Pages

Dallas

PowerCap with Crystal

GENERAL DESCRIPTION The DS9034PCX PowerCap is designed to be a lithium power source for nonvolatile timekeeping RAMs in Dallas Semiconductor’s directly surface-mountable PowerCap Module (PCM) package. After a PowerCap module board has been soldered in place and cleaned, the DS9034PCX PowerCap is

文件：114.12 Kbytes 页数：5 Pages

Maxim

美信

Y2K-Compliant, Nonvolatile Timekeeping RAMs

DESCRIPTION The DS1746 is a full function, year 2000 compliant (Y2KC), real-time clock/calendar (RTC) and 128k x 8 non-volatile static RAM. User access to all registers within the DS1746 is accomplished with a bytewide interface as shown in Figure 1. The Real Time Clock (RTC) information and cont

文件：453 Kbytes 页数：18 Pages

Dallas

Y2K-Compliant, Nonvolatile Timekeeping RAMs

DESCRIPTION The DS1746 is a full function, year 2000 compliant (Y2KC), real-time clock/calendar (RTC) and 128k x 8 non-volatile static RAM. User access to all registers within the DS1746 is accomplished with a bytewide interface as shown in Figure 1. The Real Time Clock (RTC) information and cont

文件：453 Kbytes 页数：18 Pages

Dallas

PowerCap with Crystal

GENERAL DESCRIPTION The DS9034PCX PowerCap is designed to be a lithium power source for nonvolatile timekeeping RAMs in Dallas Semiconductor’s directly surface-mountable PowerCap Module (PCM) package. After a PowerCap module board has been soldered in place and cleaned, the DS9034PCX PowerCap is

文件：114.12 Kbytes 页数：5 Pages

Maxim

美信