Datasheet > DS1742

DS1742

更新时间： 2024-11-18 06:54:39

品牌	Logo	应用领域
美信 - MAXIM		时钟
页数	文件大小	规格书
16页	493K
描述
Y2KC Nonvolatile Timekeeping RAMwww.

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数据手册

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DS1742 数据手册

DS1742

Y2KC Nonvolatile Timekeeping

RAM

www.maxim-ic.com

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

DS1742-85+

DS1742-100

DS1742-100+

DS1742-100IND

DS1742-100IND+

DS1742W-120

DS1742W-120+

DS1742W-150

DS1742W-150+

5.0

3.3

DS1742-85

DS1742-85+

DS1742-100

DS1742-100+

DS1742-100IND

DS1742-100IND+

DS1742W-120

DS1742W-120+

DS1742W-150

DS1742W-150+

+Denotes a lead-free/RoHS-compliant device.

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

UL is a registered trademark of Underwriters Laboratories, Inc.

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与DS1742相关器件

型号	品牌	获取价格	描述	数据表
DS1742_V01	MAXIM	获取价格	Y2KC Nonvolatile Timekeeping RAM
DS1742-100	MAXIM	获取价格	Y2KC Nonvolatile Timekeeping RAMwww.
DS1742-100	DALLAS	获取价格	Y2KC Nonvolatile Timekeeping RAM
DS1742-100+	MAXIM	获取价格	Y2KC Nonvolatile Timekeeping RAMwww.
DS1742-100IND	MAXIM	获取价格	Y2KC Nonvolatile Timekeeping RAMwww.
DS1742-100IND+	MAXIM	获取价格	Y2KC Nonvolatile Timekeeping RAMwww.
DS1742-70	DALLAS	获取价格	Y2KC Nonvolatile Timekeeping RAM
DS1742-70	MAXIM	获取价格	Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, PDIP24, 0.740 INCH, ENCAPSULATED, DIP-24
DS1742-70	ROCHESTER	获取价格	0 TIMER(S), REAL TIME CLOCK, PDIP24, 0.740 INCH, ENCAPSULATED, DIP-24
DS1742-70+	ROCHESTER	获取价格	0 TIMER(S), REAL TIME CLOCK, PDIP24, 0.740 INCH, ROHS COMPLIANT, ENCAPSULATED, DIP-24