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RX-4581NB:B PDF预览

RX-4581NB:B

更新时间: 2024-02-15 07:18:34
品牌 Logo 应用领域
精工 - SEIKO 时钟光电二极管外围集成电路
页数 文件大小 规格书
2页 249K
描述
REAL TIME CLOCK, PDSO22, SON-22

RX-4581NB:B 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SON
包装说明:SON, SOLCC22,.2,20针数:22
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.81
最大时钟频率:0.032 MHz外部数据总线宽度:
信息访问方法:SERIAL, 4-WIRE/SPI中断能力:Y
JESD-30 代码:R-PDSO-N22端子数量:22
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:SON
封装等效代码:SOLCC22,.2,20封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
电源:1.6/5.5 V认证状态:Not Qualified
座面最大高度:1.4 mm子类别:Timers or RTCs
最大供电电压:5.5 V最小供电电压:1.6 V
标称供电电压:3 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子形式:NO LEAD端子节距:0.5 mm
端子位置:DUAL最短时间:SECONDS
处于峰值回流温度下的最长时间:NOT SPECIFIED易失性:YES
宽度:4.8 mmuPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCK
Base Number Matches:1

RX-4581NB:B 数据手册

 浏览型号RX-4581NB:B的Datasheet PDF文件第2页 
Real time clock module  
Product Number (Please contact us)  
RX-4581NB : Q41458192000200  
REAL TIME CLOCK MODULE (SPI-Bus)  
Built-in SRAM  
RX-4581NB  
Built in frequency adjusted 32.768 kHz crystal unit.  
Interface Type  
: 4-wire serial interface  
: 1.6Vto5.5V  
Operating voltage range  
Wide Timekeeper voltage range : 1.6Vto5.5V  
Low backup current  
Built-in SRAM  
: 0.4A/3V(Typ.)  
:
:
Built-in 128  
bit(8bit16)RAM.  
Actual size  
32.768 kHz frequency output function  
C-MOS output With Control Pin  
The various functions include full calendar, alarm, timer.  
Block diagram  
Overview  
32.768 kHz  
Built-in SRAM  
• Include 128bit(8bit16)RAM.  
CLOCK  
and  
CALENDAR  
DIVIDER  
OSC  
Interface Type  
• Serial interface in 4 lines form.  
It is possible to make it to 3 lines by wired-OR connecting  
FOUT  
FOE  
FOUT  
TIMER  
DI and DO pins.  
CONTROLLER  
REGISTER  
REGISTER  
32.768 kHz frequency output function  
• FOUT pin output (C-MOS output), CL=30 pF  
• FOE pin enables output on/off control.  
/ AIRQ  
/ TIRQ  
INTERRUPTS  
CONTROLLER  
ALARM  
 Timer function  
D I  
CONTROL  
REGISTER  
• Timer function can be set up between  
1/4096 second and 4095 minutes.  
• It is recorded automatic to TF-bit at the time of event  
occurrence,and possible to output with /TIRQ pin output  
(open-drain output).  
BUS  
DO  
CLK  
CE1  
CE0  
INTERFACE  
CIRCUIT  
and  
SYSTEM  
CONTROLLER  
Interrupt function  
• Alarm interrupt function , and timer interrupt function.  
RAM 128 bit  
( 8 bit 16 )  
Pin Function  
Terminal connection/External dimensions  
(Unit:mm)  
RX  
4581NB  
N.C.  
N.C.  
1. GND  
2. CE1  
3. CE0  
4. DI  
22.  
21.  
Signal Name Input/Output  
Function  
CE0  
CE1  
CLK  
DI  
Input  
Input  
The chip enabled input pin 0. ( It has a built -in pull-down resistance )  
The chip enabled input pin 1. (It does not have a built -in pull-down resistance )  
The shift clock input pin for serial data transfer.  
20. N.C.  
N.C.  
N.C.  
N.C.  
N.C.  
N.C.  
N.C.  
  
19.  
18.  
17.  
16.  
15.  
14.  
13.  
12.  
Input  
5. DO  
Input  
The data input pin for serial data trasfer.  
6. CLK  
7. /TIRQ  
DO  
Output  
The data output pin for serial data trasfer.  
4.8  
8.  
/AIRQ  
This pin outputs the reference clock signal at 32.768 kHz ( CMOS output ).  
High impedance at the time of output off.  
FOUT  
Output  
1.30.1  
9. FOE  
10. FOUT  
11. VDD  
FOE  
Input  
Output  
Output  
The input pin for the FOUT output control.  
5.00.2  
  
/ AIRQ  
The open drain output pin for alarm and time update interrupts.  
SON22 pin  
/ TIRQ  
VDD  
The open drain output pin for timer interrupt.  
Connected to a positive power supply.  
Connected to a ground.  
  
The metal case inside of the molding compound may be exposed  
on the top or bottom of this product.  
GND  
This purely cosmetic and does not have any effect on quality,  
reliability or electrical specs.  
Specifications (characteristics)  
*Refer to application manual for details.  
Recommended Operating Conditions  
Current consumption characteristics  
Ta=-40Cto+85C  
Item  
Symbol  
Conditions  
Min.  
Typ.  
Max.  
Unit  
Item  
Symbol  
Conditions  
Min. Typ. Max. Unit  
Power voltage  
Clock voltage  
Operating  
VDD  
VCLK  
1.6  
1.6  
3.0  
3.0  
5.5  
5.5  
V
V
VDD  
=5V  
CE0,CE1=GND  
FOE=GND  
-
-
-
-
0.6  
0.4  
1.2  
0.8  
TOPR  
-40  
+25  
+85  
C  
IBK  
A  
A  
temperature  
FOUT;output OFF  
(Hi-z)  
VDD  
=3V  
Frequency characteristics  
Current  
Consumption  
Item  
Symbol  
Conditions  
Rating  
Unit  
CE0,CE1=GND  
FOE=VDD  
VDD  
=5V  
8.0 20.0  
5.0 12.0  
Frequency  
tolerance  
Ta=+25C  
VDD=3.0V  
6
f/f  
10  
B: 523  
3Max.  
I32k  
FOUT;  
32.768kHz output ON  
CL=30pF  
VDD  
=3V  
Ta=+25C  
VDD=3.0V  
Oscillation  
start-up time  
s
tSTA  
Please ask for tighter tolerance. (Equivalent to 1 minute of monthly deviation)  

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