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RA-8581SA:B0 PDF预览

RA-8581SA:B0

更新时间: 2023-01-03 09:03:08
品牌 Logo 应用领域
精工 - SEIKO 光电二极管
页数 文件大小 规格书
2页 278K
描述
REAL TIME CLOCK, PDSO14, ROHS COMPLIANT, SOP-14

RA-8581SA:B0 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP14,.3针数:14
Reach Compliance Code:compliant风险等级:5.83
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:10.1 mm
端子数量:14最高工作温度:125 °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:SOP14,.3
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):NOT SPECIFIED电源:2/5 V
认证状态:Not Qualified筛选级别:AEC-Q200
座面最大高度:3.3 mm子类别:Timers or RTCs
最大供电电压:5.5 V最小供电电压:1.8 V
标称供电电压:3 V表面贴装:YES
技术:CMOS温度等级:AUTOMOTIVE
端子面层:Tin (Sn)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:5 mm
uPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCK

RA-8581SA:B0 数据手册

 浏览型号RA-8581SA:B0的Datasheet PDF文件第2页 
Real time clock module  
REAL TIME CLOCK MODULE (I2C-Bus)  
For Automotive  
Product Number (Please contact us)  
RA-8581SA : Q41A88152xxxx00  
RA - 8581SA  
Built-in frequency adjusted 32.768kHz crystal unit.  
Interface Type  
: I2C-Bus Interface(400kHz)  
Operating voltage range  
: 1.8Vto5.5V  
Wide Timekeeper voltage range : 1.6Vto5.5V  
Low backup current  
: 0.45A/3V(Typ.)  
32.768 kHz frequency output function : C-MOS output With Control Pin  
The various functions include full calendar, alarm, timer.  
Applications : Car audio, Car navigation system, Clock, ECU sub clock  
Conforms to AEC-Q200  
Actual size  
* The I2C-Bus is a trademark of NXP Semiconductors  
Block diagram  
32.768 kHz  
Overview  
 Interface Type  
• I2C-Bus interface. (Hi-speed bus specifications 400kHz)  
I2C-Bus slave address:read A3h and write A2h  
CLOCK  
DIVIDER  
and  
OSC  
CALENDAR  
32.768 kHz frequency output function  
• FOUT pin output (C-MOS output ), CL=30 pF  
• 32.768 kHz clock frequency output. (Duty 50 ±5%)  
FOUT  
FOE  
FOUT  
CONTROLLER  
TIMER  
REGISTER  
Timer function  
• Timer interrupt function can be set up between  
1/4096 second and 4095 minutes.  
INTERRUPTS  
CONTROLLER  
ALARM  
REGISTER  
/ INT  
• It is recorded automatic to TF-bit at the time of event  
occurrence,and possible to output with /TIRQ pin output  
(N-ch open-drain output).  
CONTROL  
REGISTER  
I2C-BUS  
Interrupt function  
SCL  
SDA  
• Alarm interrupt function, Time update interrupt function.  
INTERFACE  
CIRCUIT  
and  
SYSTEM  
CONTROLLER  
Pin Function  
Terminal connection/External dimensions (Unit:mm)  
RA8581SA  
Signal Name  
Input / Output  
Function  
SCL  
SDA  
Input  
Serial clock input pin  
1. N.C.  
2. SCL  
3. SDA  
4. N.C.  
5. GND  
6. N.C.  
14. FOUT  
13. N.C.  
12. N.C.  
11. VDD  
10. FOE  
9. N.C.  
Bi-directional  
Data input and output pin  
FOUT pin outputs the reference clock signal at 32.768 kHz.  
FOE pin inputs the FOUT output control.  
FOUT  
FOE  
Output  
F O E p in  
in p u t  
F O U T p in  
o u tp u t  
5.0  
O u tp u t  
O F F  
H IG H   
L O W  
(C -M O S )  
(L O W )  
Input  
7.40.2  
7.  
8. N.C.  
/INT  
/INT  
VDD  
Output  
Interrupt output (N-ch open drain)  
Connected to a positive power supply.  
Connected to a ground.  
SOP14 pin  
The metal case inside of the molding compound may be exposed on the top or  
bottom of this product. This purely cosmetic and does not have any effect on  
quality, reliability or electrical specs.  
GND  
Specifications (characteristics)  
Refer to application manual for details.  
Recommended Operating Conditions  
Current consumption characteristics  
Ta=-40C to+85C  
Item  
Symbol  
Conditions  
Min.  
1.8  
1.6  
-40  
Typ. Max.  
Unit  
V
Item  
Symbol  
Conditions  
Min. Typ. Max. Unit  
VDD  
=5V  
Power voltage  
Clock voltage  
VDD  
3.0  
3.0  
5.5  
5.5  
fSCL=0Hz  
FOE=GND  
-
-
-
-
0.65 1.2  
0.45 0.8  
8.0 20.0  
5.0 12.0  
VCLK  
V
IBK  
µA  
µA  
Operating  
temperature  
VDD  
=3V  
FOUT;Output OFF  
(LOW)  
TOPR  
+25  
+85  
C  
Current  
Consumption  
Frequency characteristics  
VDD  
=5V  
fSCL=0Hz  
FOE=VDD  
Item  
Symbol  
Conditions  
Rating  
Unit  
Frequency  
tolerance  
Ta=+25C  
VDD=3.0V  
6
I32k  
f/f  
10  
FOUT;  
B: 523  
VDD  
=3V  
32.768kHz Output ON  
CL=30pF  
FOUT  
output Duty  
Ta=-40Cto+85C  
VDD=2.4Vto5.5V  
%
tw/t  
505  
Equivalent to 1 minute of monthly deviation  

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