Datasheet > DS1742_V01

DS1742_V01

更新时间： 2022-05-14 22:22:43

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
17页	365K
描述
Y2KC Nonvolatile Timekeeping RAM

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DS1742_V01 数据手册

DS1742

Y2KC Nonvolatile Timekeeping RAM

FEATURES

PIN CONFIGURATION

. Integrated NV SRAM, Real-Time Clock,

Crystal, Power-Fail Control Circuit and

Lithium Energy Source

. Clock Registers are Accessed Identically to

the Static RAM; These Registers are

Resident in the Eight Top RAM Locations

. Century Byte Register

. Totally Nonvolatile with Over 10 Years of

Operation in the Absence of Power

. BCD Coded Century, Year, Month, Date,

Day, Hours, Minutes, and Seconds with

Automatic Leap Year Compensation Valid

Up to the year 2100

TOP VIEW

V_CC

A10

DQ7

DQ6

DQ5

DQ4

DQ3

DS1742

DQ0

DQ1

DQ2

GND

ENCAPSULATED DIP

. Battery Voltage Level Indicator Flag

. Power-Fail Write Protection Allows for ±10%

V_CCPower Supply Tolerance

. Lithium Energy Source is Electrically

Disconnected to Retain Freshness until

Power is Applied for the First Time

. Standard JEDEC Bytewide 2k x 8 Static

RAM Pinout

. Quartz Accuracy ±1 Minute a Month at

+25°C, Factory Calibrated

Underwriters Laboratories (UL) Recognized

ORDERING INFORMATION

PART

VOLTAGE (V)

TEMP RANGE

0°C to +70°C

-40°C to +85°C

0°C to +70°C

PIN-PACKAGE

24 EDIP (0.740a)

TOP MARK**

DS1742-85+

DS1742-100+

DS1742-100IND+

DS1742W-120+

DS1742W-150+

5.0

3.3

DS1742-85+

DS1742-100+

DS1742-100IND+

DS1742W-120+

DS1742W-150+

+Denotes a lead(Pb)-free/RoHS-compliant device.

**The top mark will include a “+” on lead(Pb)-free devices.

1 of 17

19-6715; Rev 6/13

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