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RX-4571NB:B3:ROHS PDF预览

RX-4571NB:B3:ROHS

更新时间： 2023-03-15 00:00:00
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 696K
描述
REAL TIME CLOCK, PDSO22, ROHS COMPLIANT, SON-22

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RX-4571NB:B3:ROHS 数据手册

 浏览型号RX-4571NB:B3:ROHS的Datasheet PDF文件第2页 
Real time clock module  
Epson Toyocom  
Product Number (Please contact us)  
RX-4571LC : Q414571C1000100  
RX-4571NB : Q41457191000100  
RX-4571SA : Q41457151000100  
LOW BACKUP VOLTAGE  
SERIAL-INTERFACE REAL TIME CLOCK MODULE  
RX - 4571 LC  
/
NB SA  
/
•Built in frequency adjusted 32.768 kHz crystal unit.  
•Interface Type  
: 3-wire serial interface  
•Operating voltage range  
•Wide Timekeeper voltage range  
•Low backup current  
: 1.6 V to 5.5 V  
: 1.0 V to 5.5 V / Ta = +25 °C  
: 0.32 µA ( Typ. ) / 3 V  
•32.768 kHz frequency output function : C-MOS output With Control Pin  
•Real-time clock function  
Clock/calendar function, auto leap year correction function,  
alarm interrupt function, etc.  
Actual size  
RX-4571LC  
RX-4571NB  
RX-4571SA  
Block diagram  
Overview  
• 32.768 kHz frequency output function  
• FOUT pin output ( C-MOS output ) , CL=30 pF  
CONTROL LINE  
32.768 kHz  
• Timer function  
• Timer function which can be set up between  
1/4096 second and 4095 minutes.  
CLOCK and  
CALENDAR  
DIVIDER  
OSC  
• Alarm function  
• Alarm function can be set to any combination of day,  
day of week, hour, or minute.  
FOUT  
FOE  
FOUT  
TIMER  
CONTROLLER  
REGISTER  
REGISTER  
• Pin Function  
Signal  
Name  
INTERRUPTS  
CONTROLLER  
ALARM  
Function  
Input / Output  
Input  
/ IRQ  
The chip enabled input pin 0.  
( It has a built -in pull-down resistance )  
CE  
CONTROL  
REGISTER  
and  
SYSTEM  
CONTROLLER  
Input  
The shift clock input pin for serial data transfer.  
CLK  
DIO  
BUS  
DIO  
CLK  
CE  
The data input / output pin for serial data transfer.  
Bi-directional  
INTERFACE  
CIRCUIT  
32.768 kHz clock output pin with the output control  
function. ( C-MOS )  
FOUT  
Output  
FOE pin control the condition of FOUT with  
FSEL1-bit, FSEL0-bit, etc.  
FOE  
Input  
/ IRQ  
Output  
Interrupt output ( N-ch open drain )  
Connected to a positive power supply.  
Connected to a ground.  
VDD  
GND  
Terminal connection / External dimensions  
(Unit:mm)  
RX − 4571 LC  
−
RX 4571 NB  
−
RX 4571 SA  
1. FOE  
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. GND  
2. N.C.  
3. CE  
14. FOUT  
13. N.C.  
12. N.C.  
11. N.C.  
1. FOE  
2. N.C.  
3. DIO  
4. CLK  
5. CE  
12.  
V
DD  
2. DIO  
3. (GND)  
4. CLK  
5. CE  
11. N.C.  
10. N.C.  
9. N.C.  
8. /IRQ  
7. FOUT  
4. CLK  
5. DIO  
6. N.C.  
7. FOE  
6. GND  
7. N.C.  
8. N.C.  
9. FOUT  
10. /IRQ  
DD  
5.0  
2.4  
2.8  
4.8  
10.  
/ IRQ  
±
1.3 0.1  
9. N.C.  
DD  
13.  
12.  
−
−
±
6. GND  
0.2  
7.4  
8.  
V
± 0.2  
5.0  
11.  
V
SOP - 14 pin  
−
VSOJ 12pin  
−
SON 22 pin  
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.  
Specifications (characteristics)  
Refer to application manual for details.  
Current consumption characteristics  
„
„
Ta = 40 C to +85 C  
− ° °  
Recommended Operating Conditions  
Item  
Symbol  
Condition  
Min.  
Typ.  
Max.  
Unit  
Symbol  
Condition  
Min.  
Typ.  
Max.  
Unit  
DD  
−
Power voltage  
Clock voltage  
V
1.6  
1.0  
1.1  
3.0  
3.0  
3.0  
5.5  
5.5  
5.5  
V
V
V
DD  
V
V
V
V
a
a
CE = GND  
/IRQ = OFF  
°
= +25 C  
40 to +85  
T
T
0.40  
1.00  
CLK  
V
= 5 V  
−
°
C
=
BK  
µ
I
A
A
Operating  
temperature  
FOUT ;  
output OFF ( Hi - z )  
OPR  
T
−
−40  
+25  
+85  
°C  
DD  
0.32  
8.0  
0.95  
14.0  
8.5  
= 3 V  
„
Frequency characteristics  
CE = GND  
/IRQ = OFF  
DD  
Item  
Symbol  
Condition  
Rating  
Unit  
= 5 V  
a
°
= +25 C  
= 3.0 V  
a
°
= +25 C  
= 1.6 V  
FOUT ;  
32.768 kHz output  
ON  
Frequency  
tolerance  
Oscillation  
start-up time  
T
V
32k  
µ
I
−
6
±
∆
5
23 *  
×
f / f  
10  
s
DD  
DD  
5.0  
T
= 3 V  
STA  
1 Max.  
t
CL = 30 pF  
DD  
V
* Please ask for tighter tolerance. (Equivalent to 1 minute of monthly deviation)  
http://www.epsontoyocom.co.jp  
12

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