Real time clock module
Epson Toyocom
Product Number (Please contact us)
RA-4565SA : Q41A46550xxxx00
For Automotive
SERIAL INTERFACE REAL TIME CLOCK MODULE
RA - 4565 SA
•Built
in frequency adjusted 32.768 kHz crystal unit.
•Interface
Type
:
4-wire serial interface
•Wide
operating voltage range
:
1.6 V to 5.5 V
•Wide
Timekeeper voltage range
:
1.5 V to 5.5 V
T
a
=
−40 °C
to +125
°C
•
Extended operating temperature range:
−40 °C
to +125
°C
•32.768
kHz frequency output function
:
Open drain output
with Control Pin
•32.768
kHz Clock/calendar function, auto leap year correction function,
alarm interrupt function, etc.
•Conforms
to AEC-Q200
Actual size
Block diagram
32.768 kHz
CRYSTAL
OSC
Voltage Detector
Overview
•
Wide operating temperature range
Control 1
Control 2
Seconds
Minutes
00
!
−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.
CLKOUT
CLKOE
/ INT
CLK
DI
DO
CE
Hours
OUTPUT
CONTROL
DIVIDER
Days
Weekdays
Month / Century
Years
CONTROL
SPI-BUS
INTERFACE
LOGIC
Minutes Alarm
Hour Alarm
Day Alarm
Weekday Alarm
CLKOUT frequency
ADDRESS
REGISTER
POR
Timer Control
Timer
0F
•
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.
•
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 Function
Terminal
CE
CLK
DI
DO
CLKOUT
Directions
Input
Input
Input
Output
Output
Functions
Chip enabled input.
Serial clock input.
Data input.
Data 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.
CLKOE
Input
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 )
VDD
GND
Terminal connection / External dimensions
(Unit:mm)
RA
−
4565 SA
1.
2.
3.
4.
5.
6.
7.
CLK
DI
DO
CE
5.0
1.27
14.
0.2
V
DD
CLKOUT
CLKOE
N.C.
N.C.
N.C.
N.C.
13.
12.
11.
10.
/INT
N.C.
GND
7.4
±
0.2
3.2
±
0.1
10.1
±
9.
8.
/INT
VDD
GND
Output
−
−
SOP - 14 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)
"
Recommended Operating Conditions
Item
Operating
voltage
Timekeeper
voltage
Operating
temperature
Item
Frequency
stability
Oscilation
start up time
∗
1 )
∗
Refer to application manual for details.
"
Current consumption under backup mode.
Typ.
3.0
3.0
+25
Max.
5.5
5.5
+125
unit
V
V
°
C
Symbol
V
DD
V
CLK
T
OPR
Conditions
−
−
−
Min.
1.6
1.5
−
40
Item
Symbol
Conditions
f
SCL
= 0 Hz
CLKOE = "L"
V
DD
= 5 V
+125
°C
-40 to +85
°C
+125
°
C
-40 to +85
°
C
Min.
Typ.
1.0
0.6
0.8
0.5
Max.
2.0
unit
µ
A
1.2
1.6
µ
A
1.0
Standby
current.
I
BK
f
SCL
= 0 Hz
CLKOE = "L"
V
DD
= 3 V
"
Frequency characteristics
Symbol
∆
f/f
Conditions
Ta = +25
°
C
V
DD
= 3.0 V
Ta = +25
°
C
V
DD
= 1.6 V
Ta =
−
40
°
C to +125
°
C
V
DD
= 3.0 V
Rating
5
±
23
∗1
1.5 Max.
3.0 Max.
unit
×
10
−6
s
s
t
STA
Equivalent to 1 minut es of m onthly deviation.
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EPSONTOYOCOM [ EPSON TOYOCOM ]
