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X1202V8I-2.7 PDF预览

X1202V8I-2.7

更新时间： 2024-10-03 19:28:03
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
23页 173K
描述
Real Time Clock, Volatile, 0 Timer(s), CMOS, PDSO8, PLASTIC, TSSOP-8

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X1202V8I-2.7 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：PLASTIC, TSSOP-8Reach Compliance Code：unknown
风险等级：5.92最大时钟频率：0.032 MHz
信息访问方法：SERIAL, 2-WIRE/I2C中断能力：Y
JESD-30 代码：R-PDSO-G8JESD-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
峰值回流温度（摄氏度）：NOT SPECIFIED电源：3/3.3 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
处于峰值回流温度下的最长时间：NOT SPECIFIED易失性：YES
宽度：3 mmuPs/uCs/外围集成电路类型：TIMER, REAL TIME CLOCK
Base Number Matches：1

X1202V8I-2.7 数据手册

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2-Wire™ RTC  
X1202  
Real Time Clock/Calendar/Alarms/CPU Supervisor  
FEATURES  
DESCRIPTION  
• Selectable watchdog timer (0.25s, 0.75s, 1.75s, off)  
• Power on reset (250ms)  
• Programmable low voltage reset  
• 2 polled alarms  
The X1202 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.  
—Settable on the second, minute, 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 and  
automatic adjustment for 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  
• 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  
The X1202 provides a watchdog timer with 3 selectable  
time out periods and off. The watchdog activates a  
RESET pin when it expires. The reset also goes active  
when V  
drops below a fixed trip point. There are two  
CC  
• Small package options  
—8-lead SOIC package, 8-lead TSSOP package  
alarms where a match is monitored by polling status bits.  
The device offers a backup power input pin. This V  
BACK  
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.  
BLOCK DIAGRAM  
X1  
Timer  
Calendar  
Logic  
Frequency  
Divider  
1Hz  
32.768kHz  
Oscillator  
Time  
X2  
Keeping  
Registers  
(SRAM)  
Control  
Control  
Status  
Compare  
Registers  
Decode  
Registers  
Alarm  
(EEPROM)  
Logic  
(SRAM)  
Serial  
Interface  
Decoder  
SCL  
SDA  
Alarm Regs  
(EEPROM)  
8
Interrupt Enable  
Alarm  
RESET  
Characteristics subject to change without notice. 1 of 23  
REV 1.1.8 5/17/01  
www.xicor.com  
1234567...23

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