Datasheet > 微控制器和处理器 > 计时器或实时时钟> DS14285SN+

DS14285SN+

更新时间： 2024-11-23 04:15:07

品牌	Logo	应用领域
达拉斯 - DALLAS		外围集成电路光电二极管时钟
页数	文件大小	规格书
26页	481K
描述
Real-Time Clock with NV RAM

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中文翻译

获取价格

数据手册

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DS14285SN+ 数据手册

DS14285/DS14287

Real-Time Clock with NV RAM

Control Control

www.maxim-ic.com

FEATURES

PIN CONFIGURATIONS

ꢀ Direct Replacement for IBM AT

Computer Clock/Calendar

TOP VIEW

ꢀ Functionally Compatible with the

DS1285/DS1287

V_CCO

V_CC

SQW

CEO

ꢀ Available as Chip (DS14285, DS14285S, or

DS14285Q) or Stand-Alone Module with

Embedded Lithium Battery and Crystal

(DS14287)

AD0

AD1

AD2

CEI

V_BAT

IRQ

RESET

AD3

AD4

ꢀ Automatic Backup Supply and Write

Protection to Make External SRAM

Nonvolatile

AD5

AD6

AD7

GND

R/W

GND

ꢀ Counts Seconds, Minutes, Hours, Days,

Day of the Week, Date, Month, and Year

with Leap Year Compensation Valid Up

to 2100

DIP/SO

ꢀ Binary or BCD Representation of Time,

Calendar, and Alarm

28 27 26

ꢀ 12- or 24-Hour Clock with AM and PM in

12-Hour Mode

AD0

CEI

AD1

AD2

V_BAT

IRQ

DS14285

ꢀ Daylight Saving Time Option

ꢀ Multiplex Bus for Pin Efficiency

ꢀ Interfaced with Software as 128 RAM

Locations

AD3

AD4

AD5

N.C.

RESET

GND

R/W

12 13 14 15 16 17 18

14 Bytes of Clock and Control Registers

114 Bytes of General Purpose RAM

ꢀ Programmable Square-Wave Output

Signal

PLCC

ꢀ Bus-Compatible Interrupt Signals (IRQ)

ꢀ Three Interrupts are Separately Software-

Maskable and Testable

V_CC

V_CCO

N.C.

AD0

AD1

AD2

SQW

CEO

CEI

DS14287

Time-of-Day Alarm Once/Second to

Once/Day

N.C.

IRQ

RESET

N.C.

R/W

Periodic Rates from 122µs to 500ms

End of Clock Update Cycle

AD3

AD4

AD5

AD6

AD7

ꢀ Optional Industrial Temperature Version

Available: DS14285 DIP, SO, and PLCC

GND

Encapsulated Package

1 of 26

REV: 112105

12 3 4 5 6 7...26

中文翻译

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与DS14285SN+相关器件

型号	品牌	获取价格	描述	数据表
DS14285SN+T&R	MAXIM	获取价格	Real Time Clock, Volatile, 1 Timer(s), CMOS, PDSO24, 0.300 INCH, ROHS COMPLIANT, SOP-24
DS14285SN+T&R	DALLAS	获取价格	Real-Time Clock with NV RAM
DS14285SN+TR	DALLAS	获取价格	Real-Time Clock with NV RAM
DS14287	DALLAS	获取价格	Real Time Clock with NV RAM Control
DS14287	ROCHESTER	获取价格	1 TIMER(S), REAL TIME CLOCK, PDIP24, 0.740 INCH, ENCAPSULATED, DIP-24
DS14287+	DALLAS	获取价格	Real-Time Clock with NV RAM
DS1431	TTELEC	获取价格	Platon Liquid Low Flow Alarm
DS1432	TTELEC	获取价格	Explosion Proof Flow Switch
DS1433	TTELEC	获取价格	Adjustable Liquid Flow Switch
DS1434	TTELEC	获取价格	Paddle Liquid Flow Switch