RA-8565SA Datasheet, PDF (1/2 Pages) Epson ToYoCom – I2C-Bus INTERFACE REAL TIME CLOCK MODULE

Real time clock module
REAL TIME CLOCK MODULE (I²C-Bus)
For Automotive
Extended operating temperature range (+125C)
RA - 8565SA
Built in frequency adjusted 32.768 kHz crystal unit.
Interface Type
: I²C-Bus Interface(400kHz)
Wide operating voltage range
: 1.8Vto5.5V
Wide Timekeeper voltage range
: 1.7Vto5.5V
Ta=-40Cto+125C
Extended operating temperature range: -40Cto+125C
32.768 kHz frequency output function: N-ch Open drain output
With Control Pin
The various functions include full calendar, alarm, timer,etc.
Applications : Car audio, Car navigation system, Clock, ECU sub clock
Conforms to AEC-Q200
* The I²C-Bus is a trademark of NXP Semiconductors
Actual size
Product Number (Please contact us)
RA-8565SA : Q41A86552xxxx00
Block diagramç
ç ç ç Overviewç
ç
CLKOUT
CLKOE
/ INT
SCL
SDA
32.768 kHz
CRYSTAL
OSC
Voltage Detector
OUTPUT
CONTROL
DIVIDER
I²C-BUS
INTERFACE
POR
CONTROL
LOGIC
ADDRESS
REGISTER
Control 1
00
Control 2
Seconds
Minutes
Hours
Days
Weekdays
Month
Years
Minutes Alarm
Hour Alarm
Day Alarm
Weekday Alarm
CLKOUT frequency
Timer Control
Timer
0F
Wide operating temperature range for automotive
-40Cto+125C
Clocking-status detection function
It can judge the validity of data after backup
operation return by a status of VL-bit.
32.768 kHz frequency output function
CLKOUT pin output (N-ch Open Drain output )
Output frequency can be selected
as 32.768 kHz, 1024 Hz, 32 Hz, or 1 Hz.
The various interrupt function
Timer function can be set up between
1/4096 second and 255 minutes.
Alarm function can be set to day of week,
day, hour, or minute.
Pin Functionç
Signal
Name
SCL
SDA
CLKOUT
CLKOE
/INT
VDD
GND
Directions
Input
Bi-directional
Output
Input
Output


Functions
Serial clock input.
Data input and output.
The CLKOUT pin is a clock output(open drain output)pin
with control output.(Output frequency can be selected
as 32.768kHz, 1024Hz, 32Hz, or 1Hz.)
The CLKOE pin is an input pin used to control the output
mode of the CLKOUT output pin.
During the initial power-on(when power is applied from 0 V),
if the CLKOE input pin is at high level(= H),
the power-on reset function selects 32.768kHz as the frequency.
Interrupts output by Alarm and Timer events.(Open drain output)
Connected to a positive power supply.
Connected to a ground.
ç ç ç Terminal connection/External dimensionsç (Unit:mm)ç
RA8565SA
1. N.C.
14. CLKOUT
2. SCL
13. N.C.
3. SDA
12. N.C.
4. N.C.
5. GND
11. VDD
5.0
10. CLKOE
6. N.C.
7. / INT
7.40.2
SOP - 14 pin
9. N.C.
8. N.C.
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
Item
Symbol Conditions
Min.
Operating
voltage
VDD

1.8
Timekeeper
voltage
VCLK

1.7
Operating
temperature
TOPR

-40
Frequency characteristics
Item
Symbol
Conditions
Frequency
stability
f/f
Ta=+25C
VDD=3.0V
Ta=+25C
Oscilation
start up time
tSTA
VDD=1.8V
Ta=-40Cto+125C
VDD=3.0V
^{1)ï€} ï€ Equivalent to 1 minutes of monthly deviation.
Typ. Max. unit
3.0 5.5
V
3.0 5.5
V
+25 +125 C
Rating
B: 523^1
1.5Max.
3Max.
unit
10^6
s
s
Current consumption under backup mode.
Item Symbol
Conditions
Min. Typ. Max. unit
fSCL=0Hz
CLKOE=LOW
+125C
VDD=5V
Standby
current.
IBK
-40C to +85C
fSCL=0Hz
CLKOE=LOW
+125C
VDD=3V
-40C to +85C
-
1.10 1.8
A
-
0.60 1.2
-
1.00 1.6
A
-
0.55 1.0