RTC-8564JE Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – I2C-BUS INTERFACE REAL TIME CLOCK MODULE

Real time clock module
Epson Toyocom
Low current consumption
I²C-Bus INTER FACE REAL TIME C LOCK MOD ULE
RTC - 8564 JE / NB
•Built in frequency adjusted 32.768 kHz crystal unit.
•Interface Type
׃I²C-Bus Interface (400 kHz)
•Operating voltage range
׃1.8 V to 5.5 V
•Timekeeper voltage range
׃1.0 V to 5.5 V / -20 °C to +70 °C
•Low backup current
׃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
* The I²C-Bus is a trademark of NXP Semiconductors
Actual size
RTC-8564JE
Product Number (Please contact us)
RTC-8564JE : Q41856471000100
RTC-8564NB : Q41856491000200
RTC-8564NB
Block diagramç
ç ç ç Overviewç
ç
CLKOUT
CLKOE
/ INT
SCL
SDA
32.768 kHz
CRYSTAL
O SC
Voltage Detector
OUTPUT
CONTROL
DIVIDER
I²C-BUS
INTERFACE
POR
CONTROL
LOGIC
ADDRESS
REGISTER
Control 1
00
Control 2
Seconds
Minutes
Hours
Days
Weekdays
Month / Century
Years
Minutes Alarm
Hour Alarm
Day Alarm
Weekday Alarm
CLKOUT frequency
Timer Control
Ti m er
0F
• Interface Type
•I²C-Bus Interface. ( Hi-s peed bus specifications 400 kHz )
∗ I²C-Bus slave address : read A3h and write A2h
• Low Timekeeper voltage range
•1.0 V to 5.5 V / Ta = -20 °C to +70 °C
•1.1 V to 5.5 V / Ta = -40 °C to +85 °C
• 32.768 kHz frequency output function
•CLKOUT pin output (C-MOS output ), CL=30 pF
•CLKOE pin enables output on/off control.
•Output selectable
<32.768 kHz, 1024 Hz, 32 Hz, 1 Hz>
• The various interrupt function
•Timer function can be set up between 1/4096 second and
255 minutes.
• Alarm function can be s et to any com bination of day of
week, hour, or minute.
∗ Functions are compatible with RX-8564 LC series.
Pin Functionç
ç ç ç Terminal connection / External dimensionsç
(Unit׃mm) ç
Signal Name Input/Output
Function
SCL
Input
Serial clock input pin.
SDA
CLKOUT
CLKOE
/INT
Bi-directional Data input and output pin.
Output
32.768 kHz clock output pin with the
output control function. (C-MOS)
CLKOE pin control the condition of
CLKOUT with FE-bit, etc.
Input
CLKOE pin FE
CLKOUT pin
input
bit
outp ut
HIG H
1
Output ( C-MOS )
0
OFF
( LOW )
LOW
1
OFF
( LOW )
0
OFF
( LOW )
Output Interrupt output ( N-ch open drain )
VDD
-
Connected to a positive power supply.
GND
-
Connected to a ground.
1. N.C.
2. N.C.
3. CLKOE
4. VDD
5. CLKOUT
6. SCL
7. SDA
8. ( GND )
9. GND
10. / INT
RTC − 8564 JE
20. N.C.
19. N.C.
18. N.C.
17. N.C.
16. N.C.
15. N.C.
5.4
14. N.C.
1.5 Max. 13. N.C.
6 .0 ± 0.2
12. N.C.
11. N.C.
VSOJ − 20 pin
1. / INT
2. GND
3. ( GND )
4. N.C.
5. SDA
6. SCL
7. CLKOUT
8. VDD
9. CLKOE
10. N.C.
11. N.C.
RTC − 8564 NB
22. N.C.
21. N.C.
20. N.C.
19. N.C.
18. N.C.
17. N.C.
4.8
16. N.C.
1.3 ± 0. 1 ^{15. N.C.}
14. N.C.
5.0 ± 0.2
13. −
12. −
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.
! Recommended Operating Conditions
Item
Symbol
Condition
Min. Typ. Max.
Power voltage
VD D
-
1.8
3.0
5.5
Clock voltage
Operating
temperature
VCLK
TOPR
-
VLOW 3.0
5.5
-
-40 +25 +85
! Low voltage detection
Item
Low voltage
detection
Symbol
VLOW
Condition
Ta = -20 °C ∼ +70 °C
Ta = -40 °C ∼ +85 °C
Typ. Max.
0.9
1.0
0.9
1.1
! Frequency characteristics
Item
Symbol
Condition
Frequency
tolerance
∆f/f
Ta = +25 °C
VDD = 3.0 V
Rating
5 ± 23 *
* Please ask for tighter tolerance. (Equivalent to 1 minute of monthly deviation)
Unit
V
V
°C
Unit
V
V
Unit
× 10^−6
! Current consumption characteristics
Item
Sym bol
Condition
T a = −40 °C to +85 °C
Min. Typ. Max. Unit
Current
C onsu mti on
fSCL = 0 Hz
IBK
CLKOE = GND
VDD
=5V
CLKOUT ;
VDD
output OFF ( LOW ) _{= 3 V}
fSCL = 0 Hz
CLKOE = VDD
VDD
=5V
I32k CLKOUT ;
32.768 kHz output ON _VDD
(Output=OPEN ;
CL = 0 pF)
=3V
330 800
nA
275 700
2.5 3.4
µA
1.5 2.2
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