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RX-8564LC:B3:ROHS

型号:

RX-8564LC:B3:ROHS

品牌:

SEIKO[ SEIKO EPSON CORPORATION ]

页数:

1 页

PDF大小:

234 K

Real time clock module  
Epson Toyocom  
Low current consumption /  
Small size, low profile model package  
I2C-Bus INTERFACE REAL TIME CLOCK MODULE  
RX - 8564 LC  
Built in frequency adjusted 32.768 kHz crystal unit.  
Interface Type  
: I2C-Bus Interface (400 kHz)  
Operating voltage range  
Wide Timekeeper voltage range  
Low backup current  
: 1.8 V to 5.5 V  
: 1.0 V to 5.5 V / T  
a = +25 °C  
: 275 nA / 3.0 V(Typ.)  
32.768 kHz frequency output function: C-MOS output With Control Pin  
The various functions include full calendar, alarm, timer, and  
power supply voltage monitoring function.  
Actual size  
* The I2C-Bus is a trademark of NXP Semiconductors  
Block diagram  
Overview  
Interface Type  
• I2C hi-speed bus specifications. ( 400 kHz )  
32.768 kHz  
CRYSTAL  
I2C-Bus slave address : read A3h and write A2h  
00  
Control 1  
OSC  
Voltage Detector  
DIVIDER  
Control 2  
Seconds  
Low Timekeeper voltage  
• 1.0 V to 5.5 V /  
• 1.3 V to 5.5 V /  
T
a
= +25 °C  
Minutes  
Ta = 40 °C to +85 °C  
Hours  
CLKOUT  
CLKOE  
OUTPUT  
Days  
CONTROL  
32.768 kHz frequency output function  
• CLKOUT pin output (C-MOS output ), CL=30 pF  
• CLKOE pin enables output on/off control.  
Weekdays  
Month / Century  
Years  
• Output selectable <32.768 kHz, 1024 Hz, 32 Hz, 1 Hz>  
Minutes Alarm  
Hour Alarm  
Day Alarm  
Weekday Alarm  
/ INT  
CONTROL  
LOGIC  
The various interrupt function  
• Timer function can be set up between 1/4096 second and 255 minutes.  
• Alarm function can be set to any combination of day of  
week, hour, or minute.  
I2C-BUS  
SCL  
SDA  
INTERFACE  
CLKOUT frequency  
Timer Control  
Timer  
ADDRESS  
REGISTER  
Functions are compatible with RTC-8564 JE / NB series.  
0F  
POR  
Pin Function  
Terminal connection / External dimensions  
(Unit:mm)  
RX 8564 LC  
Signal Name  
Input / Output  
Function  
SCL  
SDA  
Input  
Serial clock input pin  
1. N.C.  
2. N.C.  
3. N.C.  
4. N.C.  
12. N.C.  
Bi-directional  
Data input and output pin  
11. CLKOE  
32.768 kHz clock output pin with the output control function. (C-MOS)  
CLKOE pin control the condition of CLKOUT pin with FE-bit, FD1-bit,  
FD0-bit.  
C L K O E p in  
in p u t  
CLKOUT  
Output  
DD  
V
10.  
9. CLKOUT  
FE  
b it  
1
0
1
0
C L K O U T p in  
o u tp ut  
2.4  
O utpu t  
( C -M O S  
)
H IG H  
LO W  
O FF  
O FF  
O FF  
( LO W  
( LO W  
( LO W  
)
)
)
CLKOE  
/INT  
Input  
5.  
SCL  
SDA  
/ INT  
8.  
7.  
6. GND  
2.8  
Output  
Interrupt output ( N-ch open drain )  
Connected to a positive power supply.  
Connected to a ground.  
V
DD  
VSOJ 12pin  
GND  
Specifications (characteristics)  
Refer to application manual for details.  
!
!
Current consumption characteristics  
Recommended Operating Conditions  
Ta = -40 °C to +85 °C  
Item  
Symbol  
Condition  
SCL  
= 0 Hz  
Min. Typ. Max. Unit  
Item  
Symbol  
Condition  
Min.  
Typ.  
Max. Unit  
DD  
V
Power voltage  
Clock voltage  
Operating  
1.8  
3.0  
3.0  
5.5  
5.5  
V
V
DD  
V
CLK  
LOW  
V
V
f
= 5 V  
330 800  
nA  
CLKOE = GND  
OPR  
T
°
-40  
+25  
+85  
C
BK  
I
temperature  
DD  
V
CLKOUT ;  
output OFF ( LOW )  
= 3 V  
275 700  
!
Low voltage detection  
Current  
Consumption  
Item  
Symbol  
Condition  
Min.  
Typ.  
0.9  
Max. Unit  
DD  
V
= 5 V  
SCL  
f
= 0 Hz  
DD  
2.5  
1.5  
3.4  
2.2  
CLKOE = V  
a
°
= +25 C  
T
1.0  
V
Low voltage  
detection  
CLKOUT ;  
32k  
LOW  
V
I
µA  
a
°
°
°
0.9  
0.9  
1.2  
1.3  
V
V
T
T
= -20 C to +70 C  
DD  
V
32.768 kHz Output ON  
(Output=OPEN ;  
CL = 0 pF)  
a
°
= -40 C to +85 C  
= 3 V  
!
Frequency characteristics  
Item  
Symbol  
Condition  
Rating  
Unit  
a
°
C
= 3.0 V  
Frequency  
tolerance  
T
V
= +25  
6
±
×
10  
f / f  
5
23 *  
DD  
* Please ask for tighter tolerance. (Equivalent to 1 minute of monthly deviation)  
http://www.epsontoyocom.co.jp  
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