rtc-4543sb Epson Electronics America, Inc., rtc-4543sb Datasheet
rtc-4543sb
Manufacturer Part Number
rtc-4543sb
Description
Serial-interface Real Time Clock Module
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.RTC-4543SB.pdf
(1 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
rtc-4543sb:B3 ROHS
Manufacturer:
Epson
Quantity:
490
! ! ! !
Power voltage
Clock voltage
Operating
! ! ! !
Frequency
Oscillation
Signal Name Input / Output
Simple Function
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RTC - 4543 SA
Please ask for tighter tolerance.(Equivalent to 1 minute of monthly deviation )
temperature
tolerance
start-up time
Block diagram
FOUT
Pin Function
DATA
Specifications (characteristics)
FSEL
Wide Timekeeper voltage range
GND
Built in frequency adjusted 32.768 kHz crystal unit.
Interface type
Operating voltage range
32.768 kHz frequency output function
The various functions include full calendar, timer, and low voltage detection.
FOUT
FSEL
FOE
DATA
CLK
CE
CLK
FOE
Frequency characteristics
WR
V
WR
CE
Recommended Operating Conditions
Real time clock module
Real time clock module
Real time clock module
Real time clock module
DD
Item
Item
Bi-directional The data input / output pin for serial data transfer.
Output
Input
Input
Input
Input
Input
-
-
Symbol
Symbol
T
V
V
t
STA
OPR
CLK
CONTROLLER
CONTROLLER
DD
f / f
The chip enabled input pin.
At the HIGH level, access becomes possible.
DATA pin input / output switching pin.
The shift clock input pin for serial data transfer.
32.768 kHz or 1Hz clock output pin
High impedance at output off.
The input pin for the FOUT output control.
Select the frequency that is output from the
Connected to a positive power supply.
Connected to a ground.
(C-MOS output).
FOUT pin.
OUTPUT
OSC
I / O
T
V
T
V
a
a
DD
DD
32.768 kHz
= +25 °C
= +25 °C
Condition
= 5.0 V
= 2.5 V
-
-
-
Condition
DIVIDER
Function
: 3-wire serial interface
: 2.5 V to 5.5 V
: 1.4 V to 5.5 V
: C-MOS output With Control Pin
Min.
2.5
1.4
-40
/
SB
VOLTAGE
DETECT
Typ.
+25
5.0
5.0
CLOCK AND CALENDAR
3 Max.
Rating
5 23
http://www.epsontoyocom.co.jp
SHIFT REGISTER
Max.
+85
5.5
5.5
Unit
Unit
1.
2.
3.
4.
5.
6.
7.
°C
CONTROL
10
V
V
s
CIRCUIT
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.
Terminal connection / External dimensions
6
GND
N.C.
CE
FSEL
WR
FOE
N.C.
Actual size
RTC-4543SA
RTC
! ! ! !
! ! ! !
Power supply
Current
Consumption
detection voltage
SOP
Current consumption characteristics
Supply Voltage Detection Characteristic
7.4
Item
5.0
4543 SA
0.2
14 pin
Item
32.768 kHz frequency output function
Symbol
Power supply voltage monitoring function
Overview
I
BK
14.
13.
12.
11.
10.
•FOUT pin output (C-MOS output ), CL=30 pF
•FOE pin enables output on/off control.
•FSEL pin enables output selectable 32.768 kHz or 1Hz.
•Detection that power supply voltage descended to 1.7 V or less.
•Automatic record to FDT-bit at the time of power supply
RTC-4543SB
9.
8.
decline detection.
CE = GND
FOE = GND
FOUT
N.C.
N.C.
DATA
CLK
V
N.C.
FOUT ;output OFF
DD
Symbol
* Refer to application Manual for details.
V
DT
(Hi-z)
Condition
1.
2.
3.
4.
5.
6.
7.
8.
9.
Condition
N.C.
N.C.
N.C.
N.C.
FOE
WR
FSEL
CE
GND
V
DD
V
V
V
pin
DD
DD
DD
Epson Toyocom
Epson Toyocom
Epson Toyocom
Epson Toyocom
= 5 V
= 3 V
= 2 V
RTC
SOP
Min.
Min.
1.4
7.8
5.4
4543 SB
18 pin
0.2
Typ.
Typ.
T
1.5
1.0
0.5
T
1.7
a
a
= -40 C to +85 C
= -40 C to +85 C
2.0
Max.
Max.
Max.
3.0
2.0
1.0
2.0
18.
17.
16.
15.
14.
13.
12.
11.
10.
(Unit:mm)
Unit
Unit
µA
V
N.C.
N.C.
N.C.
N.C.
V
N.C.
CLK
DATA
FOUT
DD
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