Datasheet > DS17485-DS17487

DS17485-DS17487

更新时间： 2024-02-12 12:25:43

品牌	Logo	应用领域
达拉斯 - DALLAS		时钟
页数	文件大小	规格书
38页	426K
描述
3V/5V Real-Time Clock

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中文翻译

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数据手册

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DS17485-DS17487 数据手册

DS17485/DS17487

3V/5V Real-Time Clock

www.maxim-ic.com

FEATURES

PIN ASSIGNMENT

Incorporates industry standard DS1287 PC clock

plus enhanced features:

V_CC

PWR

SQW

CꢀY2K compliant

V_BAUX

AD0

AD1

AD2

AD3

AD4

AD5

AD6

AD7

Cꢀ+3V or +5V operation

RCLR

V_BAT

IRQ

CꢀSMI recovery stack

Cꢀ64-bit silicon serial number

CꢀPower-control circuitry supports system

power-on from date/time alarm or key

closure

GND

ALE

Cꢀ32kHz output on power-up

CꢀCrystal select bit allows RTC to operate with

6pF or 12.5pF crystal

GND

DS17485 24-Pin DIP

DS17485S 24-Pin SO

Cꢀ114 bytes user NV RAM

CꢀAuxiliary battery input

V_CC

PWR

Cꢀ4kB additional NV RAM

CꢀRAM clear input

SQW

V_BAUX

CꢀCentury register

RCLR

AD0

AD1

AD2

AD3

AD4

AD5

AD6

AD7

CꢀDate alarm register

IRQ

CꢀCompatible with existing BIOS for original

DS1287 functions

CꢀAvailable as chip (DS17485) or standalone

module with embedded battery and crystal

(DS17487)

ALE

GND

CꢀTimekeeping algorithm includes leap-year

compensation valid up to 2100

CꢀUnderwriters Laboratory (UL) recognized

DS17487 24-Pin

Encapsulated Package

TYPICAL OPERATING CIRCUIT

IRQ

V_BAT

RCLR

V_BAUX

SQW

V_CC

GND

ALE

V_CC

GND

AD7

AD6

PWR

ADO

AD1

AD2

AD5

AD4

AD3

DS17485E 28-Pin TSOP

1 of 38

050802

12 3 4 5 6 7...38

中文翻译

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与DS17485-DS17487相关器件

型号	品牌	获取价格	描述	数据表
DS17485E3	MAXIM	获取价格	Real-Time Clocks
DS17485E-3	MAXIM	获取价格	Real-Time Clocks
DS17485E-3	DALLAS	获取价格	3V/5V Real-Time Clock
DS17485E-3+	MAXIM	获取价格	Real-Time Clocks
DS17485E5	MAXIM	获取价格	Real-Time Clocks
DS17485E-5	MAXIM	获取价格	Real-Time Clocks
DS17485E-5	DALLAS	获取价格	3V/5V Real-Time Clock
DS17485E-5+	MAXIM	获取价格	Real-Time Clocks
DS17485EN-3	DALLAS	获取价格	3V/5V Real-Time Clock
DS17485EN-5	DALLAS	获取价格	3V/5V Real-Time Clock