Nonvolatile Timekeeping RAM?

DESCRIPTION The DS1644L is a low profile module that requires a PLCC surface mountable socket and is functionally equivalent to the DS1644. The DS1644L is a 32K x 8 nonvolatile static RAM with a full function real time clock which are both accessible in a Byte–wide format. The real time clock inf

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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

Nonvolatile Timekeeping RAM

DESCRIPTION The DS1644 is a 32k 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 32k x 8 SRAM. The device can also be easily substituted for ROM, EPROM

文件：215.85 Kbytes 页数：14 Pages

Maxim

美信

Nonvolatile Timekeeping RAM

DESCRIPTION The DS1644 is a 32k 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 32k x 8 SRAM. The device can also be easily substituted for ROM, EPROM

文件：302.58 Kbytes 页数：13 Pages

Dallas