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RTC-62421AS:PURESN PDF预览

RTC-62421AS:PURESN

更新时间: 2024-11-13 15:50:03
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精工 - SEIKO 双倍数据速率光电二极管外围集成电路
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描述
REAL TIME CLOCK

RTC-62421AS:PURESN 数据手册

  
Real time clock module  
Epson Toyocom  
Product Number (Please contact us)  
RTC-62421 : Q42624211xxxx00  
RTC-62423 : Q42624231xxxx00  
4-bit REAL TIME CLOCK MODULE  
RTC-62421  
RTC-62423  
Built-in crystal unit allows adjustment-free efficient operation.  
24 h /12 h changeable and leap year automatically adjustable  
(Gregorian calendar).  
Actual size  
RTC-62421  
Pins and functions are compatible with the MSM6242 series.  
RTC-62423  
Block diagram  
OSC  
Counter  
3
D
BUSY  
HOLD  
RESET  
bit  
30 sec ADJ  
bit  
STOP  
bit  
2
D
1
D
0
D
Gate  
Gate  
24/12  
bit  
bit  
bit  
W
S1  
D1  
S10  
D10  
MI1  
MI10  
H1  
Y1  
H10  
W R  
RD  
S1 to CF  
3
A
A2  
A1  
MO10  
MO1  
Y10  
Latch  
0
A
CS0  
Decoder  
Output  
Selector  
DD  
V
ALE  
CS1  
STD.P  
64 Hz  
1
1
1
Second carry  
Minute carry  
Hour carry  
CD  
CE  
CF  
Terminal connection/External dimensions  
(Unit:mm)  
RTC-62421 (DIP 18-pin)  
RTC-62423 (SOP 24-pin)  
No.  
Pin  
terminal  
No.  
Pin  
terminal  
VDD  
(VDD)  
(VDD)  
N.C.  
CS1  
D0  
N.C.  
N.C.  
D1  
D2  
D3  
No.  
Pin  
terminal  
STD.P  
/CS0  
ALE  
A0  
A1  
A2  
A3  
/RD  
GND  
No.  
Pin  
terminal  
VDD  
(VDD)  
(VDD)  
CS1  
C0  
D1  
D2  
D3  
/WR  
16.3 Max.  
23.1 Max.  
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  
1
2
3
4
5
6
7
8
9
18  
17  
16  
15  
14  
13  
12  
11  
10  
#18  
#10  
#24  
#13  
RTC62421 A  
RTC62423  
EPSON 1234A  
EPSON 1234
#1  
#9  
10  
11  
12  
A3  
/RD  
GND  
#1  
#12  
/WR  
7.62  
0.2  
Min.  
4.2  
0.2  
Max.  
2.8 Max.  
0.1 Min.  
1.52  
0.46  
3.3  
Min.  
0° - 10°  
1.0  
0.35  
1.27  
2.54  
0.25  
0° -15°  
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.  
Specifications (characteristics)  
*Refer to application manual for details.  
Absolute Max. rating  
DC characteristics  
Item  
Symbol  
VDD  
VI/O  
Condition  
Ta=+25 °C  
Ta=+25 °C  
RTC-62421  
RTC-62423  
Min.  
-0.3  
GND-0.3  
-55  
Max.  
+7.0  
VDD+0.3  
+85  
Unit  
Item  
Symbol  
Condition  
VDD=5 V  
VDD=2 V  
Min. Typ.  
Max.  
30  
1.8  
Unit Applicable terminal  
Supply voltage  
Input voltage  
Storage  
IDD1  
IDD2  
VIH1  
VIL1  
15  
1
V
Current consumption  
CS1= 0 V  
μA  
HIGH input voltage (1)  
LOW input voltage (1)  
2.2  
All inputs other than  
TSTG  
V
°C  
temperature *  
CS1  
-55  
+125  
0.8  
0.4  
LOW output voltage (1)  
*Stored as bare product after unpacking  
VOL1  
IOL=2.5 mA  
D0 to D3  
V
HIGH output voltage VOH  
2.4  
IOH=-400 μA  
Operating range  
LOW output voltage (2)  
OFF leak current  
Input capacity  
Item  
Symbol  
VDD  
VCLK  
Condition  
Min.  
4.5  
2.0  
Max.  
5.5  
5.5  
Unit  
V
VOL2  
IOFFLK  
C1  
IOL=2.5 mA  
V1=VDD/0 V  
Input frequency 1 MHz  
0.4  
10/-10  
STD.P  
Power voltage  
Clock voltage  
Operating  
μA  
5
pF  
Input Pins  
Stored as bare product  
after unpacking  
HIGH input voltage (2)  
TOPR  
-40  
+85  
VIH2  
4/5 VDD  
°C  
temperature  
VDD=2.0 V to 5.5 V  
V1=VDD/0 V  
V
CS1  
LOW input voltage (2)  
VIL2  
1/5 VDD  
Frequency characteristics  
Input other than  
D0 to D3  
D0 to D3  
Item  
Symbol  
Condition  
Range  
Unit  
Input leak current (1) ILK1  
Input leak current (2) ILK2  
1/-1  
μA  
62421A  
10/-10  
±10  
±50  
±20  
±50  
+10 / -120  
62421B  
62423A  
62423  
Frequency  
precision  
Ta=+25 °C  
VDD=5.0 V  
Δf /f  
×10-6  
Frequency  
temperature  
characteristics  
Frequency voltage  
characteristics  
-10 °C to +70 °C (+25 °C)  
-40 °C to +85 °C(+25 °C)  
TOP  
+10 / -220  
Ta=+25 °C,VDD=4.5 V to 5.5 V  
Ta=+25 °C,VDD=5.0 V,First year  
±5.0 Max.  
±5.0 Max. ×10-6/year  
×10-6/V  
f/V  
fa  
Aging  
http://www.epsontoyocom.co.jp  

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