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RTC-72423A-0 PDF预览

RTC-72423A-0

更新时间： 2024-11-13 14:44:31
品牌 Logo 应用领域
精工 - SEIKO 时钟双倍数据速率光电二极管外围集成电路
页数 文件大小 规格书
2页 286K
描述
0 TIMER(S), REAL TIME CLOCK, PDSO24, SOP-24

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RTC-72423A-0 数据手册

 浏览型号RTC-72423A-0的Datasheet PDF文件第2页 
Real time clock module  
Product Number (Please contact us)  
RTC-72421 : Q42724212xxxx00  
RTC-72423 : Q42724232xxxx00  
REAL TIME CLOCK MODULE (4-bit)  
RTC-72421  
RTC-72423  
Built-in crystal unit allows adjustment-free efficient operation.  
24 h /12 h changeable and leap year automatically adjustable  
(Gregorian calendar).  
Actual size  
RTC-72421  
RTC-72423  
Block diagram  
RTC-72421/72423  
OSC  
Counter  
D3  
RESET STOP  
HOLD BUSY  
D2  
D1  
D0  
Gate  
Gate  
bit  
bit  
bit  
bit  
24/12  
bit  
30 sec ADJ  
bit  
S1  
S10  
D10  
MI1 MI10  
H1  
Y1  
H10  
Y10  
W
W R  
RD  
S1 to  
CF  
A3  
A2  
D1  
MO1 MO10  
Decoder  
A1  
Latch  
A0  
CS0  
Output  
Selector  
ALE  
CS1  
STD.P  
64 Hz  
1
1
Second carry  
Minute carry  
CD  
CE  
CF  
1
Hour carry  
Terminal connection/External dimensions  
(Unit:mm)  
RTC-72421 (DIP 18-pin)  
RTC-72423 (SOP 24-pin)  
No.  
Pin  
terminal  
STD.P  
/CS0  
ALE  
A0  
A1  
A2  
A3  
/RD  
GND  
No.  
Pin  
terminal  
VDD  
(VDD)  
(VDD)  
CS1  
C0  
D1  
D2  
No.  
Pin  
terminal  
No.  
Pin  
terminal  
16.3 Max.  
23.1 Max.  
1
2
3
4
5
6
7
8
9
18  
17  
16  
15  
14  
13  
12  
11  
10  
#24  
#13  
1
2
3
4
5
6
7
8
9
STD.P  
/CS0  
N.C.  
ALE  
A0  
N.C.  
A1  
N.C.  
A2  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
VDD  
(VDD)  
(VDD)  
N.C.  
CS1  
D0  
N.C.  
N.C.  
D1  
#18  
#10  
RTC72421 A  
RTC72423  
EPSON 1234A  
EPSON 1234A  
#1  
#9  
D3  
/WR  
#1  
#12  
10  
11  
12  
A3  
/RD  
GND  
D2  
D3  
/WR  
7.62  
0.2  
Min.  
4.2  
0.2  
2.8 Max.  
0.1 Min.  
Max.  
1.52  
0.46  
3.3  
Min.  
0- 10  
1.0  
0.35  
1.27  
2.54  
0.25  
0-15  
The metal case inside of the molding compound may be exposed on the top or bottom of this product.  
This purely cosmetic and does not have any effect on quality, reliability or electrical specs.  
Specifications (characteristics)  
*Refer to application manual for details.  
Absolute Max. rating  
DC characteristics  
Item  
Supply voltage  
Symbol  
VDD  
Conditions  
Ta=+25 C  
Min.  
-0.3  
Max.  
+7.0  
Unit  
V
Item  
Symbol  
IDD1  
Conditions  
Min.  
2.2  
Typ.  
1
Max. Unit Applicable terminal  
10  
CS1= 0 V  
VDD=5 V  
Current consumption  
Exclude input/  
output current  
A  
Input voltage  
VI/O  
GND-0.3  
VDD+0.3  
IDD2  
VDD=2 V  
0.9  
5
Ta=+25 C  
RTC-72421  
RTC-72423  
-55  
-55  
+85  
HIGH input voltage (1)  
LOW input voltage (1)  
LOW output voltage (1)  
VIH1  
VIL1  
Storage  
temperature *  
All inputs other than  
V
TSTG  
C  
CS1  
+125  
0.8  
0.4  
VOL1  
VOH  
IOL=2.5 mA  
*Stored as bare product after unpacking  
D0 to D3  
HIGH output voltage  
IOH=-400 µA  
2.4  
V
Operating range  
LOW output voltage (2)  
OFF leak current  
VOL2  
IOL=2.5 mA  
V1=VDD/0 V  
0.4  
Item  
Power voltage  
Symbol  
VDD  
Conditions  
Min.  
4.5  
Max.  
5.5  
Unit  
V
STD.P  
IOFFLK  
10/-10  
A  
Input other than  
D0 to D3  
D0 to D3, STD.P  
Clock voltage  
VCLK  
TOPR  
2.0  
5.5  
10  
20  
Input frequency  
1 MHz  
Input capacity  
C1  
pF  
RTC-72421  
RTC-72423  
-10  
-40  
+70  
+85  
Operating  
temperature  
C  
HIGH input voltage (2)  
LOW input voltage (2)  
VIH2  
VIL2  
4/5 VDD  
VDD=2.0 V to 5.5 V  
V1=VDD/0 V  
V
CS1  
1/5 VDD  
1/-1  
Stored as bare produc after unpacking  
Input other than  
D0 to D3  
Input leak current (1)  
Input leak current (2)  
ILK1  
ILK2  
A  
Frequency characteristics  
10/-10  
D0 to D3  
Item  
Symbol  
Conditions  
Range  
10  
50  
20  
50  
Unit  
72421A  
72421B  
72423A  
72423B  
Frequency  
precision  
Ta=+25 °C  
VDD=5.0 V  
f /f  
10-6  
Frequency  
temperature  
characteristics  
Frequency voltage  
characteristics  
+10 / -120  
-10 C to +70 C (+25 C)  
-40 C to +85 C(+25 C)  
Ta=+25 C,VDD=2.0 V to 5.5 V 5.0 Max. 10-6/V  
TOP  
+10 / -220  
f/V  
fa  
Ta=+25 C,VDD=5.0 V,First year 5.0 Max. 10-6/year  
Aging  
12

中文翻译

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