RX-8581NB:B3 PURE SN Epson Toyocom Corporation, RX-8581NB:B3 PURE SN Datasheet
RX-8581NB:B3 PURE SN
Manufacturer Part Number
RX-8581NB:B3 PURE SN
Description
IC REAL TIME CLOCK 22-SON
Manufacturer
Epson Toyocom Corporation
Series
-r
Type
Clock/Calendarr
Specifications of RX-8581NB:B3 PURE SN
Features
Alarm, Leap Year
Memory Size
-
Time Format
HH:MM:SS (24 hr)
Date Format
YY-MM-DD-dd
Interface
I²C
Voltage - Supply
1.8 V ~ 5.5 V
Voltage - Supply, Battery
1.6 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
22-LFDFN
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
NB10-029578
SER3784TR
SER3784TR
FOUT
FOE
/ INT
SCL
SDA
! ! ! !
Power voltage
Clock voltage
Operating
! ! ! !
Frequency
FOUT output Duty
I
RX - 8581 SA
Please ask for tighter tolerance. ( Equivalent to 1 minute of monthly deviation )
2
1.
2.
3.
4.
5.
6.
7.
temperature
tolerance
C-Bus INTERFACE REAL TIME CLOCK MODULE
Block diagram
Terminal connection / External dimensions
Specifications (characteristics)
* The I
Recommended Operating Conditions
Frequency characteristics
Built-in frequency adjusted 32.768 kHz crystal unit.
Interface Type
Operating voltage range
Wide Timekeeper voltage range
Low backup current
32.768 kHz frequency output function : C-MOS output With Control Pin
The various functions include full calendar, alarm, timer.
Real time clock module
Real time clock module
Real time clock module
Real time clock module
N.C.
SCL
SDA
N.C.
GND
N.C.
/ INT
Item
Item
2
C-Bus is a trademark of NXP Semiconductors
32.768 kHz
OSC
RX
SOP 14 pin
Symbol
Symbol
V
T
7.4
tw / t
V
OPR
8581 SA
CLK
5.0
DD
f / f
0 .2
T
V
T
V
FOUT
INTERRUPTS
I
a
DD
a
DD
2
C-BUS
= +25 C
= -40 C to +85 C
Condition
INTERFACE
CONTROLLER
CONTROLLER
= 3.0 V
= 2.4 V to 5.5 V
DIVIDER
-
-
-
14.
13.
12.
11.
10.
Condition
9.
8.
Metal may be exposed on the top or bottom of this product. This w ill not affect any quality, reliability or electrical spec.
CIRCUIT
FOUT
N.C.
N.C.
V
FOE
N.C.
N.C.
DD
/
: I
: 1.8 V to 5.5 V
: 1.6 V to 5.5 V
: 0.45 A / 3 V (Typ.)
Min.
-40
1.8
1.6
JE
2
C-Bus Interface (400 kHz)
Typ.
+25
3.0
3.0
/
Rating
5 23
http://www.epsontoyocom.co.jp
50
CLOCK
NB
10.
TIMER
ALARM
CONTROL
SYSTEM
1.
2.
3.
4.
5.
6.
7.
8.
9.
CONTROLLER
Max.
5
+85
5.5
5.5
and
N.C.
N.C.
FOE
V
FOUT
SCL
SDA
( V
GND
/ INT
DD
REGISTER
REGISTER
REGISTER
CALENDAR
and
DD
)
Unit
Unit
10
%
V
V
C
RX
6
VSOJ 20 pin
6.0
8581 JE
5.4
0.2
Actual size
RX-8581SA
! ! ! !
Current
Consumption
1.5
Current consumption characteristics
Max .
Item
20.
19.
18.
17.
16.
15.
14.
13.
12.
11.
Symbol
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
Timer function
I
32.768 kHz frequency output function
Interrupt function
I
32k
Interface Type
BK
Overview
RX-8581JE
• I
• FOUT pin output (C-MOS output ), CL=30 pF
• 32.768 kHz clock frequency output. (Duty 50 ±5 %)
• Timer interrupt function can be set up between
• It is recorded automatic to TF-bit at the time of event
• Alarm interrupt function, Time update interrupt function.
1/4096 second and 4095 minutes.
occurrence,and possible to output with /TIRQ pin output
(N-ch open-drain output).
2
f
FOE = GND
FOUT ;
output OFF ( LOW )
f
FOE = V
FOUT ;
32.768 kHz output ON
CL = 30 pF
C-Bus interface. ( Hi-speed bus specifications 400 kHz )
SCL
SCL
I
2
C-Bus slave address : read A3h and write A2h
= 0 Hz
= 0 Hz
DD
10.
11.
Condition
1.
2.
3.
4.
5.
6.
7.
8.
9.
Refer to application manual for details.
Product Number (Please contact us)
RX-8581SA : Q41858151xxxx00
RX-8581JE : Q41858171xxxx00
RX-8581NB : Q41858191000200
/ INT
GND
( V
N.C.
SDA
SCL
FOUT
V
FOE
N.C.
N.C.
DD
DD
RX-8581NB
)
V
V
V
V
Epson Toyocom
Epson Toyocom
Epson Toyocom
Epson Toyocom
DD
DD
DD
DD
= 5 V
= 3 V
= 5 V
= 3 V
RX
SON
5.0
8581 NB
Min.
4.8
22 pin
0.2
1.3
Typ.
0.65
0.45
T
8.0
5.0
a
= -40 C to +85 C
0.1
Max. Unit
22.
21.
20.
19.
18.
17.
16.
15.
14.
13.
12.
20.0
12.0
1.2
0.8
(Unit:mm)
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
µA
µA
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RX-8581NB:B3 PURE SN Summary of contents
Page 1
... Real time clock module Real time clock module Real time clock module Real time clock module 2 I C-Bus INTERFACE REAL TIME CLOCK MODULE RX - 8581 Built-in frequency adjusted 32.768 kHz crystal unit Interface Type C-Bus Interface (400 kHz) Operating voltage range : 1 5.5 V Wide Timekeeper voltage range : 1 ...
Page 2
EPSON TOYOCOM In order to meet customer needs in a rapidly advancing digital, broadband and ubiquitous society, we are committed to offering products that are one step ahead of the market and a rank above the rest in quality. ...