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X1243S8I

更新时间： 2024-01-19 07:27:52

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闹钟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
18页	94K
描述
Real Time Clock/Calendar/Alarm with EEPROM

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技术参数
数据手册

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X1243S8I 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	PLASTIC, SOIC-8	针数：	8
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.81
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-G8
JESD-609代码：	e0	长度：	4.9 mm
湿度敏感等级：	1	端子数量：	8
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：	SOP8,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	3/5 V
认证状态：	Not Qualified	座面最大高度：	1.75 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：	INDUSTRIAL	端子面层：	TIN LEAD
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：	YES
宽度：	3.9 mm	uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK
Base Number Matches：	1

X1243S8I 数据手册

X1243

SCL from Master

Data Output from

Transmitter

Data Output

from Receiver

Start

Acknowledge

Figure 5. Acknowledge Response From Receiver

Acknowledge

WRITE OPERATIONS

Acknowledge is a software convention used to indi-

cate successful data transfer. The transmitting device,

either master or slave, will release the bus after trans-

mitting eight bits. During the ninth clock cycle, the

receiver will pull the SDA line LOW to acknowledge

that it received the eight bits of data. Refer to Figure 5.

Byte Write

For a byte write operation, the device requires the

Slave Address Byte and the Word Address Bytes. This

gives the master access to any one of the words in the

array or CCR. (Note: Prior to writing to the CCR, the

master must write a 02h, then 06h to the status regis-

ter in preceding operations to enable the write opera-

tion. See “Writing to the Clock/Control Registers” on

page 6.) Upon receipt of each address byte, the

X1243 responds with an acknowledge. After receiving

both address bytes the X1243 awaits the eight bits of

data. After receiving the 8 data bits, the X1243 again

responds with an acknowledge. The master then ter-

minates the transfer by generating a stop condition.

The X1243 then begins an internal write cycle of the

data to the nonvolatile memory. During the internal

write cycle, the device inputs are disabled, so the

device will not respond to any requests from the master.

The SDA output is at high impedance. See Figure 6.

The device will respond with an acknowledge after

recognition of a start condition and if the correct

Device Identifier and Select bits are contained in the

Slave Address Byte. If a write operation is selected,

the device will respond with an acknowledge after the

receipt of each subsequent eight bit word. The device

will acknowledge all incoming data and address bytes,

except for:

—The Slave Address Byte when the Device Identifier

and/or Select bits are incorrect

—All Data Bytes of a write when the WEL in the Write

Protect Register is LOW

A write to a protected block of memory is ignored, but

will still receive an acknowledge. At the end of the

write command, the X1243 will not initiate an internal

write cycle, and will continue to ACK commands.

—The 2nd Data Byte of a Register Write Operation

(when only 1 data byte is allowed)

In the read mode, the device will transmit eight bits of

data, release the SDA line, then monitor the line for an

acknowledge. If an acknowledge is detected and no

stop condition is generated by the master, the device

will continue to transmit data. The device will terminate

further data transmissions if an acknowledge is not

detected. The master must then issue a stop condition

to return the device to Standby mode and place the

device into a known state.

1...5 6 789 10 11...18

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与X1243S8I相关器件

型号	品牌	描述	获取价格	数据表
X1243S8IT1	XICOR	Real Time Clock, 0 Timer(s), CMOS, PDSO8, PLASTIC, SOIC-8	获取价格
X1243S8T1	XICOR	Real Time Clock, 0 Timer(s), CMOS, PDSO8, PLASTIC, SOIC-8	获取价格
X1243V8	XICOR	Real Time Clock/Calendar/Alarm with EEPROM	获取价格
X1243V8	INTERSIL	Real Time Clock/Calendar/Alarm with EEPROM	获取价格
X124K	ETC	CRYSTAL OSCILLATOR 8.192000MHZ	获取价格
X124LE0	SENSORTECHNICS	8 mm switching soleniod valves	获取价格

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