Datasheet > X1287V14-2.7

X1287V14-2.7

更新时间： 2024-11-23 19:39:59

品牌	Logo	应用领域
瑞萨 - RENESAS		时钟光电二极管外围集成电路
页数	文件大小	规格书
26页	303K
描述
REAL TIME CLOCK, PDSO14, PLASTIC, TSSOP-14

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中文翻译

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技术参数
数据手册

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X1287V14-2.7 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
零件包装代码：	TSSOP	包装说明：	TSSOP, TSSOP14,.25
针数：	14	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.31	最大时钟频率：	0.032 MHz
信息访问方法：	I2C	中断能力：	Y
JESD-30 代码：	R-PDSO-G14	JESD-609代码：	e0
长度：	5 mm	端子数量：	14
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装等效代码：	TSSOP14,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	电源：	3/5 V
认证状态：	Not Qualified	座面最大高度：	1.2 mm
子类别：	Timer or RTC	最大供电电压：	5.5 V
最小供电电压：	2.7 V	标称供电电压：	5 V
表面贴装：	YES	技术：	CMOS
温度等级：	COMMERCIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	最短时间：	SECONDS
易失性：	YES	宽度：	4.4 mm
uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK	Base Number Matches：	1

X1287V14-2.7 数据手册

Preliminary Information

256K

2-Wire^™RTC

X1287

Real Time Clock/Calendar/CPU Supervisor with EEPROM

FEATURES

DESCRIPTION

• Selectable Watchdog Timer (0.25,s 0.75s, 1.75s, off)

• Power On Reset (250ms)

• Low Voltage Reset

The X1287 is a Real Time Clock with clock/calendar

CPU Supervisor circuits and two polled alarms. The dual

port clock and alarm registers allow the clock to oper-

ate, without loss of accuracy, even during read and

write operations.

• 2 Polled Alarms

—Settable on the Second, 10s of Seconds,

Minute, 10s of Minutes, Hour, Day, Month, or

Day of the Week

The clock/calendar provides functionality that is con-

trollable and readable through a set of registers. The

clock, using a low cost 32.768kHz crystal input, accu-

rately tracks the time in seconds, minutes, hours, date,

day, month and years. It has leap year correction,

automatic adjustment for the year 2000 and months

with less than 31 days.

• 2 Wire Interface interoperable with I²C.

—400kHz data transfer rate

• Secondary Power Supply Input with internal

switch-over circuitry.

• Year 2000 Compliant RTC

• 32K x 8 Bits of EEPROM

—64 Byte Page Write Mode

—3 bit Block Lock

• Low Power CMOS

—<1µA Operating Current

—<3mA Active Current - EEPROM Program

—<400µA Active Current - EEPROM Read

• Single Byte Write Capability

• Typical Nonvolatile Write Cycle Time: 5ms

• High Reliability

—100,000 Endurance Cycles

—Guaranteed Data Retention: 100 Years

• Small Package Options

The X1287 provides a watchdog timer with 3 selectable

timeout periods and off. The watchdog activates a

RESET pin when it expires. The reset also goes active

when Vcc drops below a ﬁxed trip point. There are two

alarms where a match is monitored by polling status bits.

The device offers a backup power input pin. This Vback

pin allows the device to be backed up by a non-

rechargeable battery. The RTC is fully operational from

1.8 to 6 volts.

The X1287 provides a 256K bits EEPROM array, giv-

ing a safe, secure memory for critical user and conﬁgura-

tion data. This memory is unaffected by complete

failure of the main and backup supplies.

—14-Lead SOIC, 14-Lead TSSOP

BLOCK DIAGRAM

Timer

Calendar

Logic

Frequency

Divider

1Hz

Time

Keeping

Registers

32.768kHz

Oscillator

(SRAM)

Serial

Interface

Decoder

Control/

Status

Control

Decode

Logic

Compare

Registers

SCL

SDA

Alarm

(EEPROM)

(SRAM)

Alarm Regs

(EEPROM)

256K

EEPROM

ARRAY

Watchdog

Timer

Low Voltage

Reset

RESET

Xicor, Inc. 2000 Patents Pending

9900-3021.1 3/28/01 EP

Characteristics subject to change without notice. 1 of 26

12 3 4 5 6 7...26

中文翻译

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与X1287V14-2.7相关器件

型号	品牌	获取价格	描述	数据表
X1287V14-2.7A	RENESAS	获取价格	Real Time Clock, Volatile, CMOS, PDSO14, PLASTIC, TSSOP-14
X1288	INTERSIL	获取价格	2-Wire⑩ RTC Real Time Clock/Calendar/CPU Supe
X1288	XICOR	获取价格	2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM
X1288S16	INTERSIL	获取价格	2-Wire⑩ RTC Real Time Clock/Calendar/CPU Supe
X1288S16	XICOR	获取价格	2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM
X1288S16-2.7	XICOR	获取价格	2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM
X1288S16-2.7	INTERSIL	获取价格	2-Wire⑩ RTC Real Time Clock/Calendar/CPU Supe
X1288S16-2.7A	XICOR	获取价格	2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM
X1288S16-2.7A	INTERSIL	获取价格	2-Wire⑩ RTC Real Time Clock/Calendar/CPU Supe
X1288S16-2.7AT1	RENESAS	获取价格	1 TIMER(S), REAL TIME CLOCK, PDSO16, 0.300 INCH, PLASTIC, SOIC-16

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