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X1228V14Z-2.7AT1 PDF预览

X1228V14Z-2.7AT1

更新时间: 2024-01-16 18:09:35
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
29页 430K
描述
1 TIMER(S), REAL TIME CLOCK, PDSO14, ROHS COMPLIANT, PLASTIC, TSSOP-14

X1228V14Z-2.7AT1 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:TSSOP
包装说明:TSSOP, TSSOP14,.25针数:14
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.62
最大时钟频率:0.032 MHz信息访问方法:I2C
中断能力:YJESD-30 代码:R-PDSO-G14
JESD-609代码:e3长度:5 mm
端子数量:14计时器数量:1
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:1.2 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:MATTE TIN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:4.4 mm
uPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCKBase Number Matches:1

X1228V14Z-2.7AT1 数据手册

 浏览型号X1228V14Z-2.7AT1的Datasheet PDF文件第23页浏览型号X1228V14Z-2.7AT1的Datasheet PDF文件第24页浏览型号X1228V14Z-2.7AT1的Datasheet PDF文件第25页浏览型号X1228V14Z-2.7AT1的Datasheet PDF文件第26页浏览型号X1228V14Z-2.7AT1的Datasheet PDF文件第28页浏览型号X1228V14Z-2.7AT1的Datasheet PDF文件第29页 
X1228  
Referring to Figure 16, Vtrip applies to the “Internal  
Vcc” node which powers the entire device. This means  
that if Vcc is powered down and the battery voltage at  
Vback is higher than the Vtrip voltage, then the entire  
chip will be running from the battery. If Vback falls to  
lower than Vtrip, then the chip shuts down and all out-  
puts are disabled except for the oscillator and time-  
keeping circuitry. The fact that the chip can be  
powered from Vback is not necessarily an issue since  
standby current for the RTC devices is <2µA for this  
mode (called “main timekeeping current” in the data  
sheet). Only when the serial interface is active is there  
an increase in supply current, and with Vcc powered  
down, the serial interface will most likely be inactive.  
PERFORMANCE DATA  
Performance  
I
BACK  
IBACK vs. Temperature  
Multi-Lot Process Variation Data  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
3.3V  
1.8V  
One way to prevent operation in battery backup mode  
above the Vtrip level is to add a diode drop (silicon  
diode preferred) to the battery to insure it is below  
Vtrip. This will also provide reverse leakage protection  
which may be needed to get safety agency approval.  
-40  
25  
60  
85  
Temperature °C  
One mode that should always be avoided is the opera-  
tion of the RTC device with Vback greater than both Vcc  
and Vtrip (Condition 2d in Table 8). This will cause the  
battery to drain quickly as serial bus communication and  
non-volatile writes will require higher supplier current.  
FN8100.2  
October 17, 2005  
27  

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