RA-4565SA Datasheet, PDF (1/2 Pages) Epson ToYoCom – SERIAL INTERFACE REAL TIME CLOCK MODULE

Real time clock module
Epson Toyocom
For Automotive
SERIAL INTERFACE REAL TIME CLOCK MODULE
RA - 4565 SA
Product Number (Please contact us)
RA-4565SA : Q41A46550xxxx00
•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
Ta = −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 diagramç
ç ç ç Overviewç
ç
CLKOUT
CLKOE
/ INT
CLK
DI
DO
CE
32.768 kHz
CRYSTAL
OSC
Voltage Detector
OUTPUT
CONTROL
DIVIDER
SPI-BUS
INTERFACE
POR
CONTROL
LO GIC
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
Timer
0F
• Wide operating temperature range
! −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 (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
ç ç ç Terminal connection / External dimensionsç (Unit:mm) ç
Terminal
CE
CLK
DI
DO
CLKOUT
CLKOE
/INT
VDD
GND
Directions
Input
Input
Input
Output
Output
Input
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.
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
1. CLK
2. DI
3. DO
4. CE
5. /INT
6. N.C.
7. GND
RA− 4565 SA
5.0
7.4 ± 0.2
SOP - 14 pin
14. VDD
13. CLKOUT
12. CLKOE
11. N.C.
10. N.C.
9. N.C.
8. N.C.
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
" Current consumption under backup mode.
Item
Symbol Conditions
Min.
O perating
voltage
VDD
−
1.6
Timekeeper
voltage
VCLK
−
1.5
O perating
temperature
TOPR
−
−₄₀
" Frequency characteristics
Item
Sym bol
Conditions
Frequency
stability
∆f/f
Ta = +25 °C
VDD = 3.0 V
Ta = +25 °C
O scilation
start up time
tSTA
VDD = 1.6 V
Ta = ^−40 ^°C to +125 ^°C
VDD = 3.0 V
∗1 ) _{Equivalent to 1 minut es of m onthly deviation.}
Typ. Max. unit
3.0 5.5
V
3.0 5.5
V
+25 +125 °C
Rating
5 ± 23 ^∗1
1.5 Max.
3.0 Max.
unit
× 10 ^−6
s
s
Item Symbol
Conditions
Min. Typ. Max. unit
fSCL = 0 Hz
CLKOE = "L"
+125 °C
VDD = 5 V
-40 to +85 °C
Standby
current.
IBK
fSCL = 0 Hz
+125 °C
CLKOE = "L"
VDD = 3 V
-40 to +85 °C
1.0 2.0
µA
0.6 1.2
0.8 1.6
µA
0.5 1.0
http://www.epsontoyocom.co.jp