Datasheet > X1243S8T1

X1243S8T1

更新时间： 2024-11-19 14:45:39

品牌	Logo	应用领域
XICOR		时钟光电二极管外围集成电路
页数	文件大小	规格书
18页	285K
描述
Real Time Clock, 0 Timer(s), CMOS, PDSO8, PLASTIC, SOIC-8

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中文翻译

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技术参数
数据手册

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X1243S8T1 技术参数

生命周期：	Obsolete	包装说明：	PLASTIC, SOIC-8
Reach Compliance Code：	unknown	风险等级：	5.75
最大时钟频率：	0.032 MHz	外部数据总线宽度：
信息访问方法：	SERIAL, 2-WIRE/I2C	JESD-30 代码：	R-PDSO-G8
长度：	4.9 mm	端子数量：	8
计时器数量：		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：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	认证状态：	Not Qualified
座面最大高度：	1.75 mm	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	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
宽度：	3.9 mm	uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK
Base Number Matches：	1

X1243S8T1 数据手册

Preliminary Information

16k (2k x 8)

2-Wire^™RTC

X1243

Real Time Clock/Calendar/Alarm with EEPROM

FEATURES

DESCRIPTION

• 2 alarms—interrupt output

The X1243 is a Real Time Clock with clock/calendar

circuits and two alarms. The dual port clock and alarm

registers allow the clock to operate, without loss of

accuracy, even during read and write operations.

—Settable on the second, 10s of seconds,

minute, 10s of minutes, hour, day, month, or

day of the week

—Repeat alarm for time base generation

• 2-wire interface interoperable with I²C

—400kHz data transfer rate

• Secondary power supply input with internal

switch-over circuitry

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 and

automatic adjustment for months with less than 31

days.

• 2Kbytes of EEPROM

—64-byte page write mode

—3-bit Block Lock^™protection

• Low power CMOS

An alarm match of the RTC sets an interrupt ﬂag and

activates an interrupt pin. An alternative alarm function

provides a pulsed interrupt for long time constant time-

bases.

—<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

The device offers a backup power input pin. This

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

BACK

rechargeable battery. The RTC is fully operational from

1.8 to 5.5 volts.

• Small package options

—8-lead SOIC package, 8-lead TSSOP package

The X1243 provides a 2Kbyte EEPROM array, giving a

safe, secure memory for critical user and conﬁguration

data. This memory is unaffected by complete failure of

the main and backup supplies.

BLOCK DIAGRAM

Timer

Calendar

Logic

Frequency

Divider

1Hz

32.768kHz

Oscillator

Time

Keeping

Registers

(SRAM)

Control

Registers

(EEPROM)

Status

(SRAM)

Control

Decode

Logic

Compare

Alarm

Serial

Interface

Decoder

SCL

SDA

Alarm Regs

(EEPROM)

16k (2k x 8)

EEPROM

Array

Interrupt Enable

Alarm

IRQ

Characteristics subject to change without notice. 1 of 18

REV 1.1.4 5/31/01

www.xicor.com

12 3 4 5 6 7...18

中文翻译

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与X1243S8T1相关器件

型号	品牌	获取价格	描述	数据表
X1243V8	XICOR	获取价格	Real Time Clock/Calendar/Alarm with EEPROM
X1243V8	INTERSIL	获取价格	Real Time Clock/Calendar/Alarm with EEPROM
X124K	ETC	获取价格	CRYSTAL OSCILLATOR 8.192000MHZ
X124LE0	SENSORTECHNICS	获取价格	8 mm switching soleniod valves
X124LEB	SENSORTECHNICS	获取价格	8 mm switching soleniod valves
X124LF0	SENSORTECHNICS	获取价格	8 mm switching soleniod valves
X124LFB	SENSORTECHNICS	获取价格	8 mm switching soleniod valves
X124LS0	SENSORTECHNICS	获取价格	8 mm switching soleniod valves
X124LSB	SENSORTECHNICS	获取价格	8 mm switching soleniod valves
X124SE0	SENSORTECHNICS	获取价格	8 mm switching soleniod valves

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