RX-8025SA:AA3 Epson, RX-8025SA:AA3 Datasheet
RX-8025SA:AA3
Manufacturer Part Number
RX-8025SA:AA3
Description
Real Time Clock 32.768KHz 3.0Volts 5+/-5ppm -40C +85C
Manufacturer
Epson
Datasheet
1.RX-8025SAAA3.pdf
(2 pages)
Specifications of RX-8025SA:AA3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Part Number:
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Manufacturer:
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Quantity:
20
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Manufacturer:
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.
Power voltage
Clock voltage
Operating
Frequency
Oscillation
Frequency voltage
1) 2) Equivalent to 13 seconds of monthly deviation (excluding offset).
High-Stability
I
RX - 8025 SA
FOUT
FOE
/ INTA
/ INTB
2
temperature
tolerance
start-up time
characteristics
Signal
/ INTA
/ INTB
Recommended Operating Conditions
Frequency characteristics
C-Bus INTERFACE REAL TIME CLOCK MODULE
Pin Function
Name
FOUT
TEST
Specifications (characteristics)
Wide Timekeeper voltage range
GND
Built-in 32.768 kHz crystal unit
Interface Type
Operating voltage range : 1.70 V to 5.5 V
Various detection Functions
Low backup current
32.768 kHz frequency output function : C-MOS output With Control Pin
The various functions include full calendar, alarm, timer.
SCL
SDA
FOE
V
* The I
Block diagram
Real time clock module
Real time clock module
Real time clock module
Real time clock module
DD
Item
Item
2
Input / output
Bi-directional
C-Bus is a trademark of NXP Semiconductors
Output
Output
Output
Input
Input
-
-
-
Symbol
Symbol
Control
Detect
32 kHz
T
Output
V
OSC
V
OSC
t
f / V
OPR
STA
CLK
Serial clock input pin
DD
f / f
32.768 kHz clock output pin with the output
control function. (C-MOS)
Interrupt output A pin ( N-ch open drain )
Interrupt output B pin ( N-ch open drain )
Connected to a positive power supply.
Connected to a ground.
Data input and output pin
Used by the manufacture for testing.
(Do not connect externally.)
input
FOE
L
H
Interrupt Control
Divider
Correc
-tion
T
V
T
V
T
V
/CLEN1
a
a
a
DD
DD
DD
Condition
= +25 C
= +25 C
= +25 C
bit
X
0
0
1
1
= 3.0 V
= 2.0 V
= 2.0 V to 5.5 V
-
-
-
Condition
Div.
Function
/CLEN2
bit
X
0
1
0
1
: Frequency adjusted for high accuracy
: I
: 1.15 V to 5.5 V
: Ex. Oscillation stop detection function
: 0.48 A / 3 V (Typ.)
/
( 5 10
2
C-Bus Interface (400 kHz)
Comparator_W
Comparator_D
( Sec,Min,Hour,Week,Day,Month,Year )
NB
Min.
1.7
1.15
40
OFF ( LOW )
Address
Decoder
32.768 kHz
32.768 kHz
32.768 kHz
OFF(LOW)
FOUT
output
6
Time Counter
/ T
Typ.
+25
AC: 0
AA: 5
3.0
3.0
Shift Register
a
1 Max.
Range
http://www.epsontoyocom.co.jp
= +25 C)
1 Max.
Alarm_W Register
( Min,Hour,Week )
Alarm_D Register
Address
Register
( Min,Hour )
5
5
Max.
+85
5.5
5.5
1)
2)
Unit
Unit
10
10
V
V
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.
s
C
1.
2.
3.
4.
5.
6.
7.
Control
Terminal connection / External dimensions
6
6
Voltage
Detect
I/O
N.C.
SCL
FOUT
N.C.
TEST
V
FOE
DD
Actual size
RX-8025SA
Curent
High-voltage mode
Low-voltage mode
Consumption
RX
Power supply detection voltage
Current consumption characteristics
SOP
Item
7.4
V
SCL
SDA
GND
8025 SA
DD
5.0
0.2
Item
14 pin
Features built-in 32.768 kHz crystal unit
The various detection function
Alarm function and Timer function
Overview
Symbol
I
I
32k
BK
• Frequency adjusted for high accuracy.
• Power supply voltage monitoring function
• Stop detection function
• Power-on reset detection function
• Timer function produces a periodic interruption signal.
RX-8025NB
( 5 10
( Equivalent to 13 seconds of monthly deviation )
As for the Alarm function an optional combination is produced.
(Date of the week , time , minute)
14.
13.
12.
11.
10.
(with selectable detection threshold )
9.
8.
Symbol
f
FOE = GND
FOUT ; output
OFF(LOW)
f
V
FOUT ; output ON
( Output=OPEN;
V
V
SCL
SCL
N.C.
SDA
/ INTB
GND
/ INTA
N.C.
N.C.
DD
DETH
DETL
, FOE = 5.5 V
= 0Hz
= 0Hz
6
Condition
/ T
CL = 0 pF )
Refer to application manual for details.
a
Product Number (Please contact us)
RX-8025SA : Q41802551xxxx00
RX-8025NB : Q41802591xxxx00
= +25 C )
10.
11.
Condition
1.
2.
3.
4.
5.
6.
7.
8.
9.
V
V
DD
DD
FOE
V
(GND)
TEST
FOUT
SCL
SDA
/ INTB
GND
/ INTA
N.C.
pin
pin
DD
V
V
V
= 5.5 V
DD
DD
DD
Epson Toyocom
Epson Toyocom
Epson Toyocom
Epson Toyocom
= 5 V
= 3 V
RX
Min.
Min.
1.90
1.15
SON
5.0
8025 NB
T
T
4.8
a
a
Typ.
0.60
0.48
Typ.
2.10
1.30
22 pin
3.0
0.2
= 40 C to +85 C
= 30 C to +70 C
1.3
Max.
1.80
Max.
1.20
2.30
1.45
6.5
0.1
(Unit:mm)
22.
21.
20.
19.
18.
17.
16.
15.
14.
13.
12.
Unit
Unit
µA
µA
V
V
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
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RX-8025SA:AA3 Summary of contents
Page 1
... Real time clock module Real time clock module Real time clock module Real time clock module High-Stability 2 I C-Bus INTERFACE REAL TIME CLOCK MODULE RX - 8025 Built-in 32.768 kHz crystal unit : Frequency adjusted for high accuracy ( Interface Type : I C-Bus Interface (400 kHz) Operating voltage range : 1 ...
Page 2
... Epson Toyocom. ●The information, applied circuitry, programming, usage, etc., written in this material is intended for reference only. Epson Toyocom does not assume any liability for the occurrence of infringing on any patent or copyright of a third party ...