丝印：DS9034PCX；Nonvolatile Timekeeping RAM

文件：186.6 Kbytes 页数：10 Pages

ARTSCHIP

4MEG NV Y2KC Timekeeping RAM

DESCRIPTION The DS1557 is a full function, year 2000-compliant (Y2KC), real-time clock/calendar (RTC) with a RTC alarm, watchdog timer, power-on reset, battery monitor, and 512k x 8 non-volatile static RAM. User access to all registers within the DS1557 is accomplished with a bytewide interface a

文件：268.72 Kbytes 页数：19 Pages

DALLAS

Y2KC Nonvolatile Timekeeping RAM

DESCRIPTION The DS1743 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 8k x 8 nonvolatile static RAM. User access to all registers within the DS1743 is accomplished with a bytewide interface as shown in Figure 1. The RTC information and control bits reside in

文件：247.62 Kbytes 页数：17 Pages

DALLAS

RAMified Watchdog Timekeeper

DESCRIPTION The DS1386 is a nonvolatile static RAM with a full-function Real Time Clock (RTC), alarm, watchdog timer, and interval timer which are all accessible in a byte-wide format. The DS1386 contains a lithium energy source and a quartz crystal, which eliminates the need for any external cir

文件：263.71 Kbytes 页数：20 Pages

DALLAS

256K NV Y2KC Timekeeping RAM

DESCRIPTION The DS1554 is a full function, year 2000-compliant (Y2KC), real-time clock/calendar (RTC) with a RTC alarm, watchdog timer, power-on reset, battery monitor, and 32k x 8 non-volatile static RAM. User access to all registers within the DS1554 is accomplished with a bytewide interface as

文件：284.33 Kbytes 页数：21 Pages

DALLAS

Nonvolatile Timekeeping RAM

DESCRIPTION The DS1646 is a 128K x 8 nonvolatile static RAM with a full function Real Time Clock (RTC) which are both accessible in a Byte–wide format. The nonvolatile timekeeping RAM is function equivalent to any JEDEC standard 128K x 8 SRAM. The device can also be easily substituted in ROM, EPR

文件：182.83 Kbytes 页数：11 Pages

DALLAS

4096k NV SRAM with Phantom Clock

DESCRIPTION The DS1251 4096K NV SRAM with Phantom Clock is a fully static nonvolatile RAM (organized as 512K words by 8 bits) with a built–in real time clock. The DS1251Y has a self–contained lithium energy source and control circuitry which constantly monitors VCC for an out–of–tolerance conditi

文件：291.94 Kbytes 页数：22 Pages

DALLAS

Nonvolatile Timekeeping RAM

DESCRIPTION The DS1647 is a 512k x 8 nonvolatile static RAM with a full-function real-time clock, which are both accessible in a byte-wide format. The nonvolatile timekeeping RAM is functionally equivalent to any JEDEC standard 512k x 8 SRAM. The device can also be easily substituted for ROM, EPR

文件：187.26 Kbytes 页数：11 Pages

DALLAS

RAMified Watchdog Timekeeper

FEATURES 128 kbytes of user NV RAM Integrated NV SRAM, real-time clock, crystal, power-fail control circuit and lithium energy source Totally nonvolatile with over 10 years of operation in the absence of power Watchdog timer restarts an out-of-control processor Alarm function schedu

文件：251.38 Kbytes 页数：17 Pages

DALLAS

PowerCap with Crystal

GENERAL DESCRIPTION The DS1553 is a full-function, year-2000-compliant (Y2KC) real-time clock/calendar (RTC) with an RTC alarm, watchdog timer, power-on reset, battery monitor, and 8k x 8 nonvolatile static RAM. User access to all registers within the DS1553 is accomplished with a bytewide interf

文件：39.6 Kbytes 页数：2 Pages

DALLAS