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RX-8731LC PDF预览

RX-8731LC

更新时间: 2024-01-08 07:37:54
品牌 Logo 应用领域
EPSONTOYOCOM 时钟
页数 文件大小 规格书
2页 293K
描述
I2C-Bus INTERFACE REAL TIME CLOCK MODULE

RX-8731LC 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Contact Manufacturer包装说明:SOJ,
Reach Compliance Code:not_compliant风险等级:5.78
最大时钟频率:0.032 MHz信息访问方法:I2C
JESD-30 代码:R-PDSO-J12JESD-609代码:e3
长度:3.6 mm端子数量:12
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOJ
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260座面最大高度:1.2 mm
最大供电电压:5.5 V最小供电电压:1.7 V
标称供电电压:3 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:TIN端子形式:J BEND
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:10宽度:2.4 mm
uPs/uCs/外围集成电路类型:TIMER, MEMORY REFRESHBase Number Matches:1

RX-8731LC 数据手册

 浏览型号RX-8731LC的Datasheet PDF文件第2页 
Real time clock module  
Epson Toyocom  
Product Number (Please contact us)  
RX-8731LC : Q418731C1000100  
Built-in EEPROM and Unique ID-ROM  
I2C-Bus INTERFACE REAL TIME CLOCK MODULE  
RX - 8731LC  
Built in frequency adjusted 32.768 kHz crystal unit.  
Interface Type  
:
:
:
:
I2C-Bus interface (400 kHz)  
1.7 V to 5.5 V  
Operating voltage range  
Wide Timekeeper voltage range  
Low backup current  
1.3 V to 5.5 V  
0.35  
C-MOS output With Control Pin  
The various functions include full calendar, alarm, timer.  
µA / 3 V (Typ.)  
Actual size  
32.768 kHz frequency output function  
:
* The I2C-Bus is a trademark of NXP Semiconductors  
Block diagram  
Overview  
32.768 kHz  
Built in EEPROM and ID-ROM  
• Built in 10 Byte ( 80 bit) EEPROM  
• Built in 6 Byte ( 48 bit ) ID-ROM  
DIVIDER  
OSC  
CLOCK  
and  
CALENDAR  
FOE  
Programmable I/O ports  
FOUT  
CONTROLLER  
• 4 Programmable I/O ports  
FOUT  
TIMER REGISTER  
ALARM REGISTER  
INTERRUPTS  
CONTROLLER  
Interface Type  
/ IRQ  
• I2C-Bus high-speed bus specifications. (400 kHz)  
4
32.768 kHz frequency output function  
• FOUT pin output (C-MOS output), CL=30 pF  
• FOE pin enables output on/off control.  
• Output frequency is selectable.  
I/O Port  
P00 – P03  
CONTROL  
REGISTER  
I2C-Bus  
A 0  
and  
< 32.768 kHz, 1024 Hz, 1 Hz >  
INTERFACE  
CIRCUIT  
SYSTEM  
SDA  
CONTROLLER  
The various interrupt function  
SCL  
• Alarm interrupt function  
• Timer interrupt function  
• Update interrupt function  
EEPROM  
10 Byte ( 80 bit )  
ID-ROM  
6 Byte ( 48 bit )  
Pin Function  
Terminalconnection /Externaldimensions  
(Unit:mm)  
Signal Name Input / Output  
Function  
RX 8731 LC  
SCL  
SDA  
Input  
Serial Clock input pin.  
1. FOE  
2. P00  
3. SDA  
4. SCL  
5. A 0  
12. VDD  
11. P01  
10. P02  
9. P03  
Bi-directional  
Data input and output pin.  
A 0  
Input  
Device address A0 input pin.  
FOUT pin is 32.768 kHz clock output pin ( C-MOS ) that output control is  
possible.  
FOE pin control the frequency output from FOUT pin with FSEL1-bit and  
FSEL0-bit.  
FOUT  
Output  
2.4  
2.8  
FOE  
/ IRQ  
Input  
Output  
Interrupt output pin. ( N-ch open drain )  
8. / IRQ  
7. FOUT  
P00  
P01  
P02  
P03  
6. GND  
Bi-directional  
Programmable I/O ports.  
VSOJ 12pin  
DD  
V
Connected to a positive power supply.  
Connected to a ground.  
GND  
Specifications (characteristics)  
Refer to application manual for details.  
!
Recommended Operating Conditions  
!
Current consumption characteristics  
Ta = 40 °C to +70 °C  
Item  
Symbol  
Condition  
Min.  
Typ.  
Max.  
Unit  
Item  
Symbol  
Condition  
Min. Typ. Max. Unit  
DD  
Power voltage  
Clock voltage  
Operating  
V
V
1.7  
1.3  
3.0  
3.0  
5.5  
5.5  
V
V
CLK  
DD  
V
fSCL  
= 0 Hz  
/ IRQ = OFF  
= 5 V  
0.45 0.9  
µA  
°
C
T
OPR  
-40  
+25  
+85  
temperature  
BK  
I
VDD  
FOUT : output OFF  
( Hi - z )  
!
Frequency characteristics  
= 3 V  
0.35 0.7  
Item  
Symbol  
Condition  
Rating  
Unit  
Current  
Consumption  
DD  
V
°
T
V
a
= +25 C  
6
10  
Frequency  
tolerance  
f
SCL  
= 0 Hz  
/ IRQ = OFF  
±
*
×
f / f  
5
23  
= 5 V  
8.0 16.0  
µA  
DD  
= 3.0 V  
a
°
T = +25 C  
32k  
I
s
1 Max.  
3 Max.  
FOUT :  
32.768 kHz output  
CL = 30 pF  
DD  
V
DD  
V
= 3 V  
Oscillation  
Start-up time  
= 1.6 V  
tSTA  
°
°
a
5.0 10.0  
T = -40 C to +85 C  
s
VDD = 1.6 V  
*Equivalent to 1 minute of monthly deviation  
http://www.epsontoyocom.co.jp  

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