Datasheet > 微控制器和处理器 > 计时器或实时时钟> DS12R885S-33+T&R

DS12R885S-33+T&R

更新时间： 2024-11-11 13:02:15

品牌	Logo	应用领域
美信 - MAXIM		外围集成电路光电二极管时钟
页数	文件大小	规格书
23页	293K
描述
Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDSO24, 0.300 INCH, ROHS COMPLIANT, SOP-24

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DS12R885S-33+T&R 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SOIC
包装说明：	SOP, SOP24,.4	针数：	24
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8473.30.11.80	Factory Lead Time：	6 weeks
风险等级：	5.19	最大时钟频率：	0.032 MHz
外部数据总线宽度：	8	信息访问方法：	PARALLEL, MUXED BUS
中断能力：	Y	JESD-30 代码：	R-PDSO-G24
JESD-609代码：	e3	长度：	15.365 mm
湿度敏感等级：	1	端子数量：	24
计时器数量：	1	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装等效代码：	SOP24,.4
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	260	电源：	3.3 V
认证状态：	Not Qualified	座面最大高度：	2.67 mm
子类别：	Timer or RTC	最大供电电压：	3.63 V
最小供电电压：	2.97 V	标称供电电压：	3.3 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	最短时间：	SECONDS
处于峰值回流温度下的最长时间：	NOT SPECIFIED	易失性：	NO
宽度：	7.495 mm	uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK
Base Number Matches：	1

DS12R885S-33+T&R 数据手册

Rev 5; 2/07

RTC with Constant-Voltage Trickle Charger

5C/DS12R87

General Description

Features

♦ Trickle-Charge Capability for a Rechargeable

The DS12R885 is a functional drop-in replacement for

the DS12885 real-time clock (RTC). The device pro-

vides an RTC/calendar, one time-of-day alarm, three

maskable interrupts with a common interrupt output, a

programmable square wave, and 114 bytes of battery-

backed static RAM. The date at the end of the month is

automatically adjusted for months with fewer than 31

days, including correction for leap years. It also oper-

ates in either 24-hour or 12-hour format with an AM/PM

indicator. A precision temperature-compensated circuit

Battery or Super Cap

♦ Selectable Intel or Motorola Bus Timing

♦ RTC Counts Seconds, Minutes, Hours, Day, Date,

Month, and Year with Leap-Year Compensation to

2100

♦ Interrupt Output with Three Independently

Maskable Interrupt Flags

♦ Time-of-Day Alarm is Once-per-Second to Once-

per-Day

♦ Periodic Rates from 122μs to 500ms

♦ End-of-Clock Update Cycle Flag

♦ 14 Bytes of Clock and Control Registers

♦ 114 Bytes of General-Purpose Battery-Backed NV

RAM with Clear Input

♦ Programmable Square-Wave Output

♦ Automatic Power-Fail Detect and Switch Circuitry

♦ +5.0V or +3.3V Operation

monitors the status of V . If a primary power failure is

detected, the device automatically switches to a back-

up supply. The V

pin supports a rechargeable

BACKUP

battery or a super cap and includes an integrated,

always enabled trickle charger. The DS12R885 is

accessed through a multiplexed byte-wide interface,

which supports both Intel and Motorola modes. The

DS12CR887 and DS12R887 integrate the DS12R885

die with a crystal and battery.

Applications

♦ Industrial Temperature Range

Embedded Systems

Utility Meters

♦ DS12CR887 Encapsulated DIP (EDIP) Module with

Integrated Battery and Crystal

♦ DS12R887 BGA Module Surface-Mountable

Package with Integrated Crystal and Rechargeable

Battery

Security Systems

Network Hubs, Bridges, and Routers

Typical Operating Circuit

Ordering Information

PIN-

PACKAGE

CRYSTAL

PART

TEMP RANGE

TOP MARK*

DS12R885-5

DS12R885-33

24 SO

(300 mils)

DS12R885S-5

-40°C to +85°C

RESET

RCLR

24 SO

(300 mils)

DS12R885S-5+ -40°C to +85°C

R/W

DS12R885S-5/

-40°C to +85°C

T&R

24 SO

(300 mils)

DS83C520

DS12R885

DS12R885S-5+

-40°C to +85°C

T&R

24 SO

(300 mils)

AD(0–7)

IRQ

SQW

BACKUP

24 SO

(300 mils)

SUPER

CAP

DS12R885S-33 -40°C to +85°C

MOT

GND

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

T&R = Tape-and-reel.

*A “+” anywhere on the top mark indicates a lead-free device.

Ordering Information continued at end of data sheet.

Pin Configurations appear at end of data sheet.

______________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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DS12R885S-33+T&R 替代型号

型号	品牌	替代类型	描述	数据表
DS12R885S-33/T&R	MAXIM	完全替代	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDSO24, 0.300 INCH, SOP-24
DS12R885S-33+	MAXIM	完全替代	RTCs with Constant-Voltage Trickle Charger
DS12R885S-33	MAXIM	类似代替	RTC with Constant-Voltage Trickle Charger

与DS12R885S-33+T&R相关器件

型号	品牌	获取价格	描述	数据表
DS12R885S-33+TR	MAXIM	获取价格	RTCs with Constant-Voltage Trickle Charger
DS12R885S-5	MAXIM	获取价格	RTC with Constant-Voltage Trickle Charger
DS12R885S-5/T&R	MAXIM	获取价格	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDSO24, 0.300 INCH, SOP-24
DS12R885S-5/T&R	MAXIM	获取价格	RTC with Constant-Voltage Trickle Charger
DS12R885S-5/TR	MAXIM	获取价格	RTC with Constant-Voltage Trickle Charger
DS12R885S-5+	MAXIM	获取价格	RTC with Constant-Voltage Trickle Charger
DS12R885S-5+T&R	MAXIM	获取价格	RTC with Constant-Voltage Trickle Charger
DS12R885S-5+TR	MAXIM	获取价格	RTC with Constant-Voltage Trickle Charger
DS12R887	DALLAS	获取价格	RTC with Constant-Voltage Trickle Charger
DS12R887	MAXIM	获取价格	RTC with Constant-Voltage Trickle Charger

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