rx-4045nb Epson Electronics America, Inc., rx-4045nb Datasheet
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rx-4045nb
Manufacturer Part Number
rx-4045nb
Description
Serial-interface Real Time Clock Module
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.RX-4045NB.pdf
(1 pages)
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
RX-4045NB
Manufacturer:
EPSON
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Part Number:
rx-4045nb:AA3
Manufacturer:
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! ! ! !
Power voltage
Clock voltage
Operating
! ! ! !
Frequency
Oscillation
Frequency / voltage
FOUT
/INT
1) 2)
High-Stability Frequency
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RX - 4045 SA
Signal
Name
FOUT
TEST
/ INT
GND
CLK
V
start-up time
characteristics
temperature
tolerance
CE
DO
DI
Block diagram
Pin function
Specifications (characteristics)
DD
Frequency characteristics
Built-in 32.768 kHz crystal unit
Operating voltage range
Wide Timekeeper voltage range
Various detection Functions
Low backup current
32.768 kHz clock frequency output
Function of time and calendar, the various detection function,
Interface Type
and interrupt function etc.
Recommended Operating Conditions
Real time clock module
Real time clock module
Real time clock module
Real time clock module
Item
Item
Equivalent to 13 seconds of monthly deviation (excluding offset.)
Output
Output
Output
Output
Input /
Input
Input
Input
-
-
-
OSC
DETECT
CONTROL
OUTPUT
OSC
32kHz
The chip enabled input pin.
At the " H " level, access becomes possible.
The data input pin for serial data transfer.
The data output pin for serial data transfer.
The shift clock input pin for serial data transfer.
32.768 kHz clock output pin with the output control
function ( N-ch open drain )
High impedance at the time of output off.
Interrupt output ( N-ch open drain )
Connected to a positive power supply.
Connected to a ground.
( built -in pull-down resistance )
(Do not connect externally.)
Symbol
Symbol
Used by the manufacturer for testing.
T
V
V
t
f / V
CORREC
DIVIDER
STA
OPR
CLK
DD
f / f
-TION
INTERRUPT CONTROL
T
V
T
V
T
V
a
a
a
DD
DD
DD
= +25°C
= +25 °C
= +25 °C
Condition
DIV
= 3.0 V
= 2.0 V
= 2.0 V to 5.5 V
-
-
-
Function
Condition
COMPARATOR_W
COMPARATOR_D
: Frequency adjusted for high accuracy.
: 4-wire serial interface
: 1.7 V to 5.5 V
: 1.15 V to 5.5 V
: Oscillation stop detection function etc.
: 0.48 A / 3 V (Typ.)
: N-ch open drain output
(SEC,MIN,HOUR,WEEK,DAY,MONTH,YEAR)
DECODER
ADDRESS
( 5 10
/
Min.
1.7
1.15
-40
NB
6
TIME COUNTER
SHIFT REGISTER
/ T
Typ.
+25
AC: 0
AA: 5
3.0
3.0
a
1 Max.
Rating
= +25 C)
REGISTER
http://www.epsontoyocom.co.jp
ADDRESS
1 Max.
ALARM_W REGISTER
ALARM_D REGISTER
(MIN,HOUR, WEEK)
5
5
Max.
+85
(MIN,HOUR)
5.5
5.5
1)
2)
Unit
Unit
1.
2.
3.
4.
5.
6.
7.
Terminal connection / External dimensions
10
10
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.
V
V
s
C
CONTROL
N.C.
CLK
FOUT
N.C.
TEST
V
CE
6
6
DD
I/O
VOLTAGE
DETECT
Actual size
RX-4045SA
RX
! ! ! !
! ! ! !
High-voltage mode
Low-voltage mode
Current
Consumption
SOP
Current consumption characteristics
Power supply detection voltage
7.4
Item
4045 SA
5.0
V
GND
0.2
DD
Item
CLK
D I
DO
14 pin
CE
Refer to application manual for details.
Symbol
I
I
32k
BK
14.
13.
12.
11.
10.
The various detection Function
Equipped with alarm and timer
Features built-in 32.768 kHz crystal unit
9.
8.
CE = GND
RX-4045NB
Overview
FOUT ;
CE = GND
FOUT ;
Symbol
V
V
N.C.
DO
DI
GND
/ INT
N.C.
N.C.
▪Frequency adjusted for high accuracy
▪Power supply voltage monitoring function
▪Stop detection function
▪Power-on reset detection function
▪
DETH
DETL
( 5 10
( Equivalent to 13 seconds of monthly deviation )
Timer function produces a periodic interruption signal.
produced. (Date of the week , time , minute)
As for the Alarm function an optional combination is
(with selectable detection threshold )
output OFF
32.768 kHz
output ON
Condition
(Hi-z)
6
10.
11.
Condition
/T
1.
2.
3.
4.
5.
6.
7.
8.
9.
V
V
a
DD
DD
= +25 C )
V
V
V
CE
V
(GND)
TEST
FOUT
CLK
DO
DI
GND
/ INT
N.C.
pin
pin
DD
DD
DD
DD
= 5 V
= 3 V
= 3 V
Epson Toyocom
Epson Toyocom
Epson Toyocom
Epson Toyocom
Min.
Min.
1.90
1.15
RX
SON
5.0
4045 NB
4.8
0.60
0.65
Typ.
0.48
Typ.
2.10
1.30
22 pin
0.2
T
T
a
a
= 40 C to +85 C
= 30 C to +70 C
1.3
Max.
1.80
2.00
Max.
1.20
2.30
1.45
0.1
22.
21.
20.
19.
18.
17.
16.
15.
14.
13.
12.
(Unit:mm)
Unit
Unit
µA
µA
V
V
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.