Datasheet > DS1687

DS1687

更新时间： 2024-11-15 22:50:47

品牌	Logo	应用领域
美信 - MAXIM		时钟
页数	文件大小	规格书
33页	407K
描述
3V/5V Real-Time Clocks

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中文翻译

获取价格

数据手册

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DS1687 数据手册

DS1685/DS1687

3V/5V Real-Time Clocks

www.maxim-ic.com

FEATURES

Incorporates Industry-Standard DS1287 PC Clock

plus Enhanced Features Such as:

Cꢀ Y2K Compliant

Cꢀ RAM Clear Input

Cꢀ +3V or +5V Operation

Cꢀ 64-Bit Silicon Serial Number

Cꢀ Century Register

Cꢀ Date Alarm Register

Cꢀ Power-Control Circuitry Supports System Power-

Cꢀ Compatible with Existing BIOS for Original

On from Date/Time Alarm or Key Closure

DS1287 Functions

Cꢀ 32kHz Output for Power Management

Cꢀ Available as Chip (DS1685) or Stand-Alone

Encapsulated DIP (EDIP) with Embedded

Battery and Crystal (DS1687)

Cꢀ Crystal-Select Bit Allows RTC to Operate with

6pF or 12.5pF Crystal

Cꢀ Timekeeping Algorithm Includes Leap-Year

Cꢀ SMI Recovery Stack

Compensation Valid Through 2099

Cꢀ 242 Bytes Battery-Backed NV RAM

Cꢀ Auxiliary Battery Input

Cꢀ Underwriters Laboratory (UL) Recognized

APPLICATIONS

Embedded Systems

Utility Meters

PACKAGE DIMENSION

INFORMATION

www.maxim-ic.com/DallasPackInfo

Security Systems

Network Hubs, Bridges, and Routers

PIN CONFIGURATIONS

TOP VIEW

V_CC

PWR

V_CC

PWR

N.C.

AD0

SQW

V_BAUX

SQW

V_BAUX

DS1685/

DS1685S/

DS1685E

DS1687

AD0

RCLR

V_BAT

IRQ

RCLR

N.C.

IRQ

28 27 26

AD0

AD1

AD2

AD3

AD4

AD5

N.C.

RCLR

AD1

AD2

AD3

AD4

AD5

AD6

AD7

GND

V_BAT

AD1

AD2

AD3

AD4

AD5

AD6

AD7

GND

DS1685Q

IRQ

GND

12 13 14 15 16 17 18

GND

N.C.

PLCC

ALE

DIP (0.600”)/

SO (0.300”)/

EDIP (740 mil)

TSSOP (0.173”)

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device

may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.

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REV: 032604

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与DS1687相关器件

型号	品牌	获取价格	描述	数据表
DS1687-08	DALLAS	获取价格	Real Time Clock, 1 Timer(s), CMOS, PDIP28,
DS1687-3	MAXIM	获取价格	3V/5V Real-Time Clocks
DS1687-3	DALLAS	获取价格	3V/5V Real-Time Clocks
DS1687-3_12	MAXIM	获取价格	3V/5V Real-Time Clocks
DS1687-3+	DALLAS	获取价格	3V/5V Real-Time Clocks
DS1687-3+	MAXIM	获取价格	3V/5V Real-Time Clocks
DS1687-3+C01	MAXIM	获取价格	Real Time Clock, Volatile, 1 Timer(s), CMOS, PDIP24, 0.740 INCH, LEAD FREE, ENCAPSULATED,
DS1687-32	DALLAS	获取价格	Real Time Clock, 1 Timer(s), CMOS, PDIP28,
DS1687-3IND	MAXIM	获取价格	3V/5V Real-Time Clocks
DS1687-3IND	DALLAS	获取价格	3V/5V Real-Time Clocks