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RX-4571LC Datasheet(PDF) 1 Page - Epson ToYoCom

Part No. RX-4571LC
Description  LOW BACKUP VOLTAGE SERIAL-INTERFACE REAL TIME CLOCK MODULE
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Maker  EPSONTOYOCOM [Epson ToYoCom]
Homepage  http://www.epsontoyocom.co.jp
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RX-4571LC Datasheet(HTML) 1 Page - Epson ToYoCom

   
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http://www.epsontoyocom.co.jp
Real time clock module
Real time clock module
Real time clock module
Real time clock module
Epson Toyocom
Epson Toyocom
Epson Toyocom
Epson Toyocom
Block diagram
Overview
BUS
INTERFACE
CIRCUIT
32.768 kHz
CONTROL
REGISTER
ALARM
REGISTER
TIMER
REGISTER
CLOCK
and
CALENDAR
INTERRUPTS
CONTROLLER
FOUT
CONTROLLER
DIVIDER
CO NTRO L LINE
FOUT
/ IRQ
CLK
DIO
CE
OSC
SYSTEM
CONTROLLER
FOE
and
•••• 32.768 kHz frequency output function
• FOUT pin output ( C-MOS output ) , CL=30 pF
•••• Timer function
• Timer function which can be set up between
1/4096 second and 4095 minutes.
•••• Alarm function
• Alarm function can be set to any combination of day,
day of week, hour, or minute.
•••• Pin Function
Signal
Name
Input / Output
Function
CE
Input
The chip enabled input pin 0.
( It has a built -in pull-down resistance )
CLK
Input
The shift clock input pin for serial data transfer.
DIO
Bi-directional
The data input / output pin for serial data transfer.
FOUT
Output
FOE
Input
32.768 kHz clock output pin with the output control
function. ( C-MOS )
FOE pin control the condition of FOUT with
FSEL1-bit, FSEL0-bit, etc.
/ IRQ
Output
Interrupt output
( N-ch open drain )
VDD
-
Connected to a positive power supply.
GND
-
Connected to a ground.
Terminal connection / External dimensions
(Unit:mm)
RX
− 4571 LC
1.
FOE
12.
VDD
2.
N.C.
11.
N.C.
3.
DIO
10.
N.C.
4.
CLK
9.
N.C.
5.
CE
8.
/IRQ
6.
GND
2.4
2.8
7.
FOUT
VSOJ − 12pin
RX
− 4571 NB
1.
FOE
22.
N.C.
2.
DIO
21.
N.C.
3.
(GND)
20.
N.C.
4.
CLK
19.
N.C.
5.
CE
18.
N.C.
6.
GND
17.
N.C.
7.
N.C.
16.
N.C.
8.
N.C.
15.
N.C.
9.
FOUT
14.
N.C.
10.
/IRQ
13.
11.
VDD
4.8
5.0 ± 0.2
1.3 ± 0.1
12.
SON − 22 pin
RX
− 4571 SA
1.
GND
14.
FOUT
2.
N.C.
13.
N.C.
3.
CE
12.
N.C.
4.
CLK
11.
N.C.
5.
DIO
10.
/ IRQ
6.
N.C.
9.
N.C.
7.
FOE
5.0
7.4 ± 0.2
8.
VDD
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)
∗ Refer to application manual for details.
!
!
!
! Recommended Operating Conditions
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Power voltage
VDD
1.6
3.0
5.5
V
Ta = +25
°C
1.0
3.0
5.5
V
Clock voltage
VCLK
Ta =
−40 to +85 °C
1.1
3.0
5.5
V
Operating
temperature
TOPR
−40
+25
+85
°C
!
!
!
! Frequency characteristics
Item
Symbol
Condition
Rating
Unit
Frequency
tolerance
∆ f / f
Ta = +25 °C
VDD = 3.0 V
5 ± 23 *
× 10 −6
Oscillation
start-up time
tSTA
Ta = +25 °C
VDD = 1.6 V
1 Max.
s
* Please ask for tighter tolerance. (Equivalent to 1 minute of monthly deviation)
!
!
!
! Current consumption characteristics
Ta =
−40 °C to +85 °C
Symbol
Condition
Min.
Typ.
Max.
Unit
VDD
= 5 V
0.40
1.00
IBK
CE = GND
/IRQ = OFF
FOUT ;
output OFF ( Hi - z )
VDD
= 3 V
0.32
0.95
µA
VDD
= 5 V
8.0
14.0
I32k
CE = GND
/IRQ = OFF
FOUT ;
32.768 kHz output
ON
CL = 30 pF
VDD
= 3 V
5.0
8.5
µA
LOW BACKUP VOLTAGE
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RX - 4571 LC / NB / SA
•Built in frequency adjusted 32.768 kHz crystal unit.
•Interface Type
: 3-wire serial i nte rface
•Operating voltage range
: 1.6 V to 5.5 V
•Wide Timekeeper voltage range
: 1.0 V to 5.5 V / Ta = +25
°C
•Low backup current
: 0.32
µA ( Typ. ) / 3 V
•32.768 kHz frequency output function : C-MOS output With Control Pin
•Real-time clock function
Clock/cale ndar function, a uto leap yea r correction functio n,
alarm i nte rrupt functio n, etc.
RX-4571NB
RX-4571SA
RX-4571LC
Product Number (Please contact us )
RX-4571LC : Q414571C1000100
RX-4571NB : Q41457191000100
RX-4571SA : Q41457151000100


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