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 頁數(shù)：18 Pages

DALLAS

Y2KC Nonvolatile Timekeeping RAM

文件：224.32 Kbytes 頁數(shù)：18 Pages

DALLAS

Y2K兼容、非易失時鐘RAM

DS1746是一款全功能、符合2000年標準(Y2KC)的實時時鐘/日歷(RTC)和128k x 8非易失性靜態(tài)RAM。用戶對DS1746內(nèi)所有寄存器的訪問都通過字節(jié)寬接口實現(xiàn)，如圖1所示。RTC信息和控制位駐留在RAM的前八個位置。RTC寄存器包含24小時二進制編碼十進制(BCD)格式的世紀、年、月、日期、星期、時、分和秒數(shù)據(jù)。每月的日期和閏年會自動校正。RTC時鐘寄存器采用雙緩沖，以避免在時鐘更新周期過程中訪問錯誤數(shù)據(jù)。雙緩沖系統(tǒng)還可以防止因訪問時間寄存器數(shù)據(jù)而造成的時間損失，因為計時倒計時會持續(xù)不斷進行。DS1746還包含自己的電源故障電路，當VCC電源處于超出容差的狀態(tài)時，該電路會取消 ? 集成NV SRAM、實時時鐘、晶體、電源故障控制電路和鋰能源\n\n? 時鐘寄存器的訪問方式與靜態(tài)RAM的訪問方式相同。這些寄存器駐留在RAM的前八個位置。\n\n? 世紀字節(jié)寄存器（即符合Y2K標準）\n\n? 具有完全的非易失性，在沒有電源的情況下可運行超過10年\n\n? BCD編碼的世紀、年、月、日期、星期、時、分、秒，自動閏年補償有效期至2100年\n\n? 電池電壓電平指示器標志\n\n? 電源故障寫保護支持±10% VCC電源容差\n\n? 鋰能源在首次通電之前會斷電以保持新鮮度\n\n? 僅DIP模塊標準JEDEC字節(jié)寬128k x 8靜態(tài)RAM引腳排列\(zhòng)n\n? ;

ADI

亞德諾

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 頁數(shù)：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 頁數(shù)：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 頁數(shù)：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 頁數(shù)：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 頁數(shù)：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 頁數(shù)：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 頁數(shù)：5 Pages

MAXIM

美信