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X1240V8I

更新时间： 2024-01-13 07:34:28

品牌	Logo	应用领域
XICOR		计时器或实时时钟微控制器和处理器外围集成电路光电二极管可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
19页	78K
描述
Real Time Clock/Calendar with EEPROM

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技术参数
数据手册

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X1240V8I 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	PLASTIC, TSSOP-8	Reach Compliance Code：	unknown
风险等级：	5.8	Is Samacsys：	N
最大时钟频率：	0.032 MHz	信息访问方法：	I2C
中断能力：	N	JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e0	长度：	4.4 mm
端子数量：	8	计时器数量：
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：	TSSOP
封装等效代码：	TSSOP8,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	电源：	3 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：	3.6 V
最小供电电压：	2.7 V	标称供电电压：	3 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	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：	NO	宽度：	3 mm
uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK	Base Number Matches：	1

X1240V8I 数据手册

Preliminary Information

16K

2-Wire RTC

X1240

Real Time Clock/Calendar with EEPROM

FEATURES

DESCRIPTION

• 2-Wire Interface interoperable with I²C.

—400kHz data transfer rate

• Secondary Power Supply Input with internal

switch-over circuitry.

The X1240 is a Real Time Clock with clock/calendar

circuits. The dual port clock register allows the clock to

operate, without loss of accuracy, even during read and

write operations.

• Year 2000 Compliant

• 2K bytes of EEPROM

—64 Byte Page Write Mode

—3 bit Block Lock

• Low Power CMOS

—<1µA Operating Current

—<3mA Active Current during Program

—<400µA Active Current during Data Read

• Single Byte Write Capability

• Typical Nonvolatile Write Cycle Time: 5ms

• High Reliability

—1,000,000 Endurance Cycles

—Guaranteed Data Retention: 100 Years

• Small Package Options

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.

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 5.5 volts.

The X1240 provides a 2K byte EEPROM array, giving

a safe, secure memory for critical user and configura-

tion data. This memory is unaffected by complete fail-

ure of the main and backup supplies.

—8-Lead SOIC Package, 8L TSSOP Package

BLOCK DIAGRAM

Timer

Calendar

Logic

Frequency

Divider

1Hz

Time

Keeping

Registers

32.768kHz

Oscillator

(SRAM)

Control

Status

Control

Decode

Logic

Registers

Serial

Interface

Decoder

(EEPROM)

(SRAM)

SCL

SDA

16K

EEPROM

Array

Xicor, Inc. 1994, 1995, 1996, 1997, 1998, 1999 Patents Pending

9900-3003.5 12/6/99 CM

Characteristics subject to change without notice

12 3 4 5 6 7...19

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与X1240V8I相关器件

型号	品牌	描述	获取价格	数据表
X1241S8	RENESAS	0 TIMER(S), REAL TIME CLOCK, PDSO8, PLASTIC, SOIC-8	获取价格
X1241S8-2.7	RENESAS	0 TIMER(S), REAL TIME CLOCK, PDSO8, PLASTIC, SOIC-8	获取价格
X1241S8-2.7A	RENESAS	0 TIMER(S), REAL TIME CLOCK, PDSO8, PLASTIC, SOIC-8	获取价格
X1241S8-4.5A	RENESAS	0 TIMER(S), REAL TIME CLOCK, PDSO8, PLASTIC, SOIC-8	获取价格
X1241S8I	RENESAS	0 TIMER(S), REAL TIME CLOCK, PDSO8, PLASTIC, SOIC-8	获取价格
X1241S8I-2.7	RENESAS	0 TIMER(S), REAL TIME CLOCK, PDSO8, PLASTIC, SOIC-8	获取价格

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