256k Nonvolatile SRAM

DESCRIPTION The DS1230 256k Nonvolatile SRAMs are 262,144-bit, fully static, nonvolatile SRAMs organized as 32,768 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry which constantly monitors VCC for an out-of-tolerance condition. When such a conditio

文件：213.86 Kbytes 页数：12 Pages

Dallas

PowerCap

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：114.07 Kbytes 页数：3 Pages

Dallas

PowerCap

文件：119.67 Kbytes 页数：3 Pages

Dallas

PowerCap

文件：119.67 Kbytes 页数：3 Pages

Maxim

美信

丝印：DS9034PCX；Nonvolatile Timekeeping RAM

文件：186.6 Kbytes 页数：10 Pages

ARTSCHIP

PowerCap

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：114.07 Kbytes 页数：3 Pages

Dallas

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

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