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RX-8581JEB PDF预览

RX-8581JEB

更新时间: 2023-02-26 13:51:35
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 283K
描述
REAL TIME CLOCK, PDSO20, VSOJ-20

RX-8581JEB 数据手册

 浏览型号RX-8581JEB的Datasheet PDF文件第2页 
Real time clock module  
Product Number (Please contact us)  
RX-8581SA : Q41858152xxxx00  
RX-8581JE : Q41858171xxxx00  
RX-8581NB : Q41858192000200  
REAL TIME CLOCK MODULE (I2C-Bus)  
RX - 8581SA/JE/NB  
Built-in frequency adjusted 32.768kHz crystal unit.  
Interface Type  
: I2C-Bus Interface(400kHz)  
Operating voltage range  
Wide Timekeeper voltage range  
Low backup current  
: 1.8V to5.5V  
: 1.6Vto5.5V  
: 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.  
Actual size  
RX-8581SA  
RX-8581JE  
RX-8581NB  
* The I2C-Bus is a trademark of NXP Semiconductors  
Block diagram  
Overview  
 Interface Type  
• I2C-Bus interface. (Hi-speed bus specifications 400kHz)  
I2C-Bus slave address:read A3h and write A2h  
32.768 kHz  
CLOCK  
and  
CALENDAR  
DIVIDER  
32.768 kHz frequency output function  
• FOUT pin output (C-MOS output ), CL=30 pF  
• 32.768 kHz clock frequency output. (Duty 50 ±5 %)  
OSC  
FOUT  
FOE  
FOUT  
TIMER  
Timer function  
CONTROLLER  
REGISTER  
• Timer interrupt function can be set up between  
1/4096 second and 4095 minutes.  
• 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).  
INTERRUPTS  
CONTROLLER  
ALARM  
REGISTER  
/ INT  
Interrupt function  
CONTROL  
REGISTER  
• Alarm interrupt function, Time update interrupt function.  
I2C-BUS  
SCL  
SDA  
INTERFACE  
CIRCUIT  
and  
SYSTEM  
CONTROLLER  
Terminal connection/External dimensions  
(Unit:mm)  
RX8581SA  
  
RX8581JE  
RX8581NB  
1.  
2. GND  
3.  
22. N.C.  
21. N.C.  
20. N.C.  
19. N.C.  
18. N.C.  
17. N.C.  
16. N.C.  
15. N.C.  
14. N.C.  
/INT  
1. N.C.  
20. N.C.  
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.  
2. N.C.  
3. FOE  
4. VDD  
5. FOUT  
6. SCL  
7. SDA  
19. N.C.  
18. N.C.  
17. N.C.  
16. N.C.  
15. N.C.  
14. N.C.  
(VDD)  
4. N.C.  
5. SDA  
6. SCL  
7. FOUT  
8. VDD  
5.0  
4.8  
5.4  
1.30.1  
8.  
9. GND  
10.  
Max. 13. N.C.  
(VDD)  
1.5  
  
9. FOE  
10. N.C.  
11. N.C.  
12. N.C.  
13.  
12.  
  
  
7.40.2  
7.  
8. N.C.  
/INT  
5.00.2  
6.00.2  
11. N.C.  
/INT  
SOP14 pin  
VSOJ20 pin  
SON22 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.  
Specifications (characteristics)  
 Refer to application manual for details.  
Recommended Operating Conditions  
Current consumption characteristics  
Ta=-40Cto+85C  
Item  
Symbol  
Conditions  
Min.  
Typ.  
Max.  
Unit  
Item  
Symbol  
Conditions  
Min. Typ. Max. Unit  
Power voltage  
Clock voltage  
Operating  
VDD  
VCLK  
1.8  
1.6  
3.0  
3.0  
5.5  
5.5  
V
V
VDD  
=5V  
fSCL=0Hz  
-
-
-
-
0.65 1.2  
0.45 0.8  
8.0 20.0  
5.0 12.0  
FOE=GND  
TOPR  
-40  
+25  
+85  
C  
temperature  
IBK  
µA  
µA  
FOUT;  
output OFF(LOW)  
VDD  
=3V  
Frequency characteristics  
Current  
Consumption  
Item  
Symbol  
Conditions  
Rating  
Unit  
fSCL=0Hz  
FOE=VDD  
VDD  
=5V  
Frequency  
tolerance  
Ta=+25C  
VDD=3.0V  
6
f/f  
10  
B: 523  
505  
I32k  
FOUT;  
32.768kHz output ON  
CL=30pF  
VDD  
=3V  
Ta=-40Cto+85C  
VDD=2.4Vto5.5V  
FOUT output Duty  
tw/t  
%
Please ask for tighter tolerance.( Equivalent to 1 minute of monthly deviation )  

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