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RX-8581SA PDF预览

RX-8581SA

更新时间： 2024-09-23 21:07:43
品牌 Logo 应用领域
精工 - SEIKO 时钟光电二极管外围集成电路
页数 文件大小 规格书
2页 416K
描述
0 TIMER(S), REAL TIME CLOCK, PDSO14, SOP-14

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中文翻译

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RX-8581SA 数据手册

 浏览型号RX-8581SA的Datasheet PDF文件第2页 
Real time clock module  
Epson Toyocom  
Product Number (Please contact us)  
RX-8581SA : Q41858151xxxx00  
RX-8581JE : Q41858171xxxx00  
I2C-Bus INTERFACE REAL TIME CLOCK MODULE  
RX-8581NB : Q41858191000200  
RX - 8581 SA  
/
JE NB  
I2C-Bus Interface (400 kHz)  
1.8 V to 5.5 V  
/
•
•
•
•
•
•
•
Built-in frequency adjusted 32.768 kHz crystal unit.  
Interface Type  
:
Operating voltage range  
Wide Timekeeper voltage range  
Low backup current  
32.768 kHz frequency output function  
The various functions include full calendar, alarm, timer.  
:
:
:
1.6 V to 5.5 V  
0.45  
µA / 3 V (Typ.)  
:
C-MOS output With Control Pin  
Actual size  
RX-8581JE  
RX-8581SA  
RX-8581NB  
*
The I2C-Bus is a trademark of NXP Semiconductors  
Block diagram  
Overview  
• Interface Type  
• I2C-Bus interface. ( Hi-speed bus specifications 400 kHz )  
I2C-Bus slave address : read A3h and write A2h  
32.768 kHz  
OSC  
CLOCK  
and  
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 %)  
CALENDAR  
FOUT  
FOUT  
TIMER  
• Timer function  
CONTROLLER  
REGISTER  
FOE  
• 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 − 8581 SA  
RX − 8581 JE  
RX − 8581 NB  
1. / INT  
2. GND  
3. ( VDD  
4. N.C.  
5. SDA  
6. SCL  
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.  
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.  
2. N.C.  
3. FOE  
19. N.C.  
18. N.C.  
17. N.C.  
16. N.C.  
15. N.C.  
14. N.C.  
13. N.C.  
12. N.C.  
)
4.  
VDD  
5. FOUT  
6. SCL  
7. SDA  
11.  
VDD  
5.0  
4.8  
7. FOUT  
DD  
5.4  
10. FOE  
9. N.C.  
8. N.C.  
8.  
V
1.3  
±
0.1  
Max.  
1.5  
DD  
8. ( V  
)
9. FOE  
10. N.C.  
11. N.C.  
9. GND  
10. / INT  
±
7.4 0.2  
−
−
13.  
12.  
7.  
5.0 ±  
0.2  
/ INT  
±
6.0 0.2  
11. N.C.  
−
SOP 14 pin  
−
VSOJ 20 pin  
−
SON 22 pin  
Metal may be exposed on the top or bottom of this product. This w ill not affect any quality, reliability or electrical spec.  
Specifications (characteristics)  
Refer to application manual for details.  
!
!
Current consumption characteristics  
Recommended Operating Conditions  
Ta = -40 °C to +85 °C  
Item  
Symbol  
Condition  
Min.  
Typ.  
Max.  
Unit  
Item  
Symbol  
Condition  
Min. Typ. Max. Unit  
Power voltage  
Clock voltage  
Operating  
DD  
V
V
1.8  
1.6  
3.0  
3.0  
5.5  
5.5  
V
V
DD  
V
CLK  
f
SCL = 0 Hz  
FOE = GND  
0.65 1.2  
µA  
= 5 V  
°
C
T
OPR  
-40  
+25  
+85  
temperature  
BK  
I
FOUT ;  
output OFF ( LOW )  
DD  
V
= 3 V  
0.45 0.8  
!
Frequency characteristics  
Current  
Consumption  
Item  
Symbol  
Condition  
Rating  
Unit  
f
SCL  
= 0 Hz  
DD  
V
= 5 V  
8.0 20.0  
µA  
a
°
C
Frequency  
tolerance  
T
= +25  
DD = 3.0 V  
6
−
DD  
FOE = V  
∆
×
f / f  
10  
±
5
23  
V
32k  
I
FOUT ;  
32.768 kHz output ON  
CL = 30 pF  
VDD  
°
°
T
a
= -40 C to +85  
C
5.0 12.0  
FOUT output Duty  
±
5
tw / t  
50  
%
= 3 V  
DD  
V
= 2.4 V to 5.5 V  
Please ask for tighter tolerance. ( Equivalent to 1 minute of monthly deviation )  
http://www.epsontoyocom.co.jp  
12

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