Real time clock module
Product Number (Please contact us)
RA-4565SA : Q41A46552xxxx00
REAL TIME CLOCK MODULE (SPI-Bus)
For Automotive
Extended operating temperature range (+125C)
RA - 4565SA
Built in frequency adjusted 32.768 kHz crystal unit.
Interface Type
: 4-wire serial interface
: 1.6Vto5.5V
Wide operating voltage range
Wide Timekeeper voltage range
: 1.5Vto5.5V
Ta=-40Cto+125C
Extended operating temperature range: -40Cto+125C
32.768 kHz frequency output function : Open drain output
with Control Pin
Actual size
32.768 kHz Clock/calendar function, auto leap year correction function,
alarm interrupt function, etc.
Applications : Car audio, Car navigation system, Clock, ECU sub clock
Conforms to AEC-Q200
Block diagram
Overview
Wide operating temperature range
-40Cto+125C
32.768 kHz
CRYSTAL
Control 1
Control 2
00
OSC
Voltage Detector
DIVIDER
Clocking-status detection function
It can judge the validity of data after backup operation
return by a status of VL-bit.
Seconds
Minutes
Hours
CLKOUT
CLKOE
OUTPUT
Days
CONTROL
32.768 kHz frequency output function
CLKOUT pin output (Open Drain output )
Output frequency can be selected as 32.768 kHz,
1024 Hz, 32 Hz, or 1 Hz.
Weekdays
Month / Century
Years
/ INT
CLK
DI
Minutes Alarm
Hour Alarm
Day Alarm
Weekday Alarm
CONTROL
LOGIC
SPI-BUS
The various interrupt function
Timer function can be set up between 1/4096 second and
255 minutes.
INTERFACE
DO
CE
CLKOUT frequency
Timer Control
Timer
Alarm function can be set to day of week,day, hour,
or minute.
ADDRESS
REGISTER
0F
POR
Pin Function
Terminal connection/External dimensions
(Unit:mm)
SA
RA4565
Signal
Directions
Name
Functions
DD
V
1. CLK
2. DI
14.
CE
CLK
DI
Input
Input
Input
Chip enabled input.
Serial clock input.
Data input.
13. CLKOUT
12. CLKOE
11. N.C.
10. N.C.
9. N.C.
3. DO
4. CE
5. /INT
6. N.C.
7. GND
DO
Output
Data output.
The CLKOUT pin is a clock output(open drain output)pin with control
output.(Output frequency can be selected as 32.768kHz, 1024Hz,
32Hz, or 1Hz.)
CLKOUT
Output
Input
5.0
The CLKOE pin is an input pin used to control the output mode of the
CLKOUT output pin.
CLKOE
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
7.40.2
8. N.C.
selects 32.768kHz as the frequency.
Interrupts output by Alarm and Timer events.(Open drain output)
SOP - 14 pin
/INT
VDD
GND
Output
VDD
GND
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
Current consumption under backup mode.
Item
Symbol
Conditions
Min.
1.6
1.5
-40
Typ.
3.0
Max.
5.5
unit
V
Item
Symbol
Conditions
Min.
-
Typ.
1.0
Max.
2.0
unit
Operating
voltage
Timekeeper
voltage
Operating
temperature
VDD
fSCL=0Hz
CLKOE="L"
+125C
A
VCLK
3.0
5.5
V
VDD=5V
-
-
-
0.6
0.8
0.5
1.2
1.6
1.0
-40 to +85C
+125C
Standby
current.
TOPR
+25
+125
C
IBK
fSCL=0Hz
CLKOE="L"
Frequency characteristics
A
Item
Symbol
Conditions
Rating
unit
VDD=3V
-40 to +85C
Ta=+25C
VDD=3.0V
Ta=+25C
VDD=1.6V
Ta=-40Cto+125C
VDD=3.0V
Frequency
stability
6
f/f
B: 5231
1.5Max.
10
s
s
Oscilation
start up time
tSTA
3.0Max.
1)
Equivalent to 1 minutes of monthly deviation.