rx-4571lc Epson Electronics America, Inc., rx-4571lc Datasheet
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rx-4571lc
Manufacturer Part Number
rx-4571lc
Description
Serial-interface Real Time Clock Module
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.RX-4571LC.pdf
(1 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
RX-4571LC
Manufacturer:
EPSON/爱普生
Quantity:
20 000
Company:
Part Number:
rx-4571lc:B3 PURE SN
Manufacturer:
Epson
Quantity:
500
Part Number:
rx-4571lcB
Manufacturer:
EPSON/爱普生
Quantity:
20 000
* Please ask for tighter tolerance. (Equivalent to 1 minute of monthly deviation)
! ! ! !
! ! ! !
1.
2.
3.
4.
5.
6.
Power voltage
Clock voltage
Operating
Frequency
Oscillation
LOW BACKUP VOLTAGE
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RX - 4571 LC
temperature
tolerance
start-up time
Specifications (characteristics)
Built in frequency adjusted 32.768 kHz crystal unit.
Interface Type
Operating voltage range
Wide Timekeeper voltage range : 1.0 V to 5.5 V / T
Low backup current
32.768 kHz frequency output function : C-MOS output With Control Pin
Real-time clock function
Clock/calendar function, auto leap year correction function,
alarm interrupt function, etc.
Recommended Operating Conditions
Frequency characteristics
Terminal connection / External dimensions
FOE
N.C.
DIO
CLK
CE
GND
Real time clock module
Real time clock module
Real time clock module
Real time clock module
Block diagram
FOUT
FOE
/ IRQ
DIO
CLK
CE
Item
Item
RX 4571 LC
VSOJ 12pin
Symbol
Symbol
2.4
2.8
V
T
V
t
OPR
STA
CLK
f / f
DD
32.768 kHz
T
T
T
V
T
V
FOUT
INTERRUPTS
OSC
a
a
a
a
DD
DD
BUS
= +25 C
= 40 to +85 C
= +25 C
= +25 C
INTERFACE
CONTROLLER
CONTROLLER
Condition
12.
10.
11.
= 3.0 V
= 1.6 V
9.
8.
7.
CIRCUIT
Condition
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.
V
N.C.
N.C.
N.C.
/IRQ
FOUT
DD
DIVIDER
: 3-wire serial interface
: 1.6 V to 5.5 V
: 0.32 A ( Typ. ) / 3 V
/
NB
Min.
1.6
1.0
1.1
40
CLOCK and
TIMER
ALARM
CONTROL
SYSTEM
Typ.
+25
3.0
3.0
3.0
http://www.epsontoyocom.co.jp
/
10.
11.
CONTROLLER
1.
2.
3.
4.
5.
6.
7.
8.
9.
1 Max.
5
Rating
SA
CALENDAR
REGISTER
REGISTER
REGISTER
and
a
FOE
DIO
(GND)
CLK
CE
GND
N.C.
N.C.
FOUT
/IRQ
V
23 *
= +25 C
DD
Max.
+85
5.5
5.5
5.5
CONTROL LINE
RX
Unit
Unit
10
SON
V
V
V
s
C
5.0
6
4571 NB
4.8
22 pin
0.2
Actual size
RX-4571LC
1.3
! ! ! !
Symbol
Current consumption characteristics
0.1
I
I
32k
BK
22.
21.
20.
19.
18.
17.
16.
15.
14.
13.
12.
32.768 kHz frequency output function
Timer function
Alarm function
Pin Function
Signal
FOUT
Name
/ IRQ
GND
CLK
FOE
DIO
V
CE
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
Overview
DD
CE = GND
/IRQ = OFF
FOUT ;
output OFF ( Hi - z )
CE = GND
/IRQ = OFF
FOUT ;
32.768 kHz output
ON
CL = 30 pF
• FOUT pin output ( C-MOS output ) , CL=30 pF
• Timer function which can be set up between
• Alarm function can be set to any combination of day,
1/4096 second and 4095 minutes.
day of week, hour, or minute.
Input / Output
Bi-directional
RX-4571NB
Output
Output
Input
Input
Input
Condition
-
-
Refer to application manual for details.
1.
2.
3.
4.
5.
6.
7.
The chip enabled input pin 0.
( It has a built -in pull-down resistance )
The shift clock input pin for serial data transfer.
The data input / output pin for serial data transfer.
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.
Interrupt output ( N-ch open drain )
Connected to a positive power supply.
Connected to a ground.
V
V
V
V
DD
DD
DD
DD
= 5 V
= 3 V
= 5 V
= 3 V
GND
N.C.
CE
CLK
DIO
N.C.
FOE
RX-4571SA
Epson Toyocom
Epson Toyocom
Epson Toyocom
Epson Toyocom
Min.
RX
SOP - 14 pin
7.4
Function
4571 SA
5.0
0.40
0.32
Typ.
8.0
5.0
0.2
T
a
= 40 C to +85 C
Max.
1.00
0.95
14.0
8.5
14.
13.
12.
11.
10.
9.
8.
(Unit:mm)
FOUT
N.C.
N.C.
N.C.
/ IRQ
N.C.
V
Unit
DD
A
A