RTC-62421B Epson, RTC-62421B Datasheet
RTC-62421B
Manufacturer Part Number
RTC-62421B
Description
Manufacturer
Epson
Datasheet
1.RTC-62421B.pdf
(1 pages)
Specifications of RTC-62421B
Bus Type
Parallel
Operating Supply Voltage (typ)
5V
Package Type
PDIP
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
Operating Temperature Classification
Industrial
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Mounting
Through Hole
Date Format
DW:DM:M:Y
Time Format
HH:MM:SS
Lead Free Status / RoHS Status
Compliant
Absolute Max. rating
*Stored as bare product after unpacking
Operating range
Frequency characteristics
1.52
Frequency voltage
Supply voltage
4-bit REAL TIME CLOCK MODULE
RTC - 62421
RTC - 62423
temperature *
Power voltage
Clock voltage
Input voltage
0.46
temperature
characteristics
characteristics
•Built-in crystal unit allows adjustment-free efficient operation.
•24 h /12 h changeable and leap year automatically adjustable
•Pins and functions are compatible with the MSM6242 series.
Frequency
RTC-62421 (DIP 18-pin)
Operating
temperature
Block diagram
Terminal connection/External dimensions
Specifications (characteristics)
precision
Frequency
(Gregorian calendar).
Storage
Aging
Real time clock module
Item
Item
Item
#18
#1
RTC62421 A
EPSON
Symbol
Symbol
Symbol
23.1 Max.
T
V
T
Δf /f
V
V
V
T
f/V
OPR
STG
CLK
fa
DD
I/O
DD
OP
1234A
Stored as bare product
T
2.54
T
a
after unpacking
a
=+25 °C,V
-10 °C to +70 °C (+25 °C)
T
=+25 °C,V
V
-40 °C to +85 °C(+25 °C)
RTC-62421
RTC-62423
a
T
T
DD
Condition
Condition
=+25 °C
a
a
=+25 °C
=+25 °C
=5.0 V
-
-
#10
#9
Condition
DD
Min.
0.2
DD
=5.0 V,First year
=4.5 V to 5.5 V
C S 0
A LE
C S 1
W R
4.2
Max.
D
D
D
D
R D
A
A
A
A
3.3
3
2
1
0
3
2
1
0
Min.
62421A
62421B
62423A
62423
GND-0.3
No.
Min.
Min.
-0.3
-55
-55
4.5
2.0
-40
1
2
3
4
5
6
7
8
9
0° -15°
Gate
Gate
Latch
Pin
STD.P
/CS
ALE
A
A
A
A
/RD
GND
7.62
terminal
0
1
2
3
+10 / -120
+10 / -220
±5.0 Max.
±5.0 Max. ×10
Range
0
V
±10
±50
±20
±50
DD
+125
Max.
+7.0
Max.
http://www.epsontoyocom.co.jp
+85
+85
5.5
5.5
0.25
+0.3
D ecoder
OS C
S 1 to C F
30 sec A D J
R E S E T
No.
bit
18
17
16
15
14
13
12
10
×10
11
×10
Unit
Unit
Unit
bit
-6
°C
°C
V
V
/year
-6
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.
-6
/V
S TOP
Pin
V
(V
(V
CS
C
D
D
D
/W R
bit
terminal
DD
0
1
2
3
DD
DD
1
DC characteristics
S 1
D 1
C D
C ounter
Current consumption
Input leak current (1)
Input leak current (2)
HIGH output voltage
)
)
LOW output voltage (1)
LOW output voltage (2)
HIGH input voltage (1)
LOW input voltage (1)
HIGH input voltage (2)
LOW input voltage (2)
OFF leak current
Input capacity
D 10
S 10
Item
C E
HOLD
Actual size
bit
RTC-62421
M O 1 M O10
M I1
B U S Y
RTC-62423 (SOP 24-pin)
bit
M I10
#1
#1
#24
#24
C F
EPSON 1234A
EPSON 1234
RTC62423
RTC62423
1 S ec o nd c arry
1 M inute carry
1 H our carry
Symbol
I
1.27
V
V
OFFLK
I
I
V
V
V
V
V
I
I
C
DD1
DD2
LK1
LK2
OL1
OL2
IH1
IL1
OH
IH2
IL2
H 1
Y1
1
64 H z
16.3 Max.
16.3 Max.
24/12
H 10
Y10
Input frequency 1 MHz
bit
CS
V
DD
Output
S elec tor
0.35
1
I
= 0 V
V
=2.0 V to 5.5 V
V
I
OH
I
OL
OL
Condition
1
1
W
=-400 μA
=V
=V
=2.5 mA
=2.5 mA
-
#13
#13
DD
DD
RTC-62423
#12
#12
/0 V
/0 V
V
V
V
D D
DD
DD
0.1 Min.
0.1 Min.
=5 V
=2 V
*Refer to application manual for details.
2.8 Max.
2.8 Max.
4/5 V
Product Number (Please contact us)
RTC-62421 : Q42624211xxxx00
RTC-62423 : Q42624231xxxx00
Min.
-
2.2
-
-
2.4
-
-
-
S TD .P
DD
No.
10
12
11
1
2
3
4
5
6
7
8
9
Typ.
0.2
0.2
-
-
15
1
5
Epson Toyocom
1.0
Pin
STD.P
/CS
N.C.
ALE
A
N.C.
A1
N.C.
A
A
/RD
GND
terminal
0
2
3
1/5 V
10/-10
10/-10
Max.
0
1/-1
1.8
-
0.8
0.4
-
0.4
-
30
DD
Unit
μA
μA
pF
μA
V
V
V
0° - 10°
0° - 10°
No.
24
23
22
21
20
19
18
17
16
15
14
13
All inputs other than
Applicable terminal
Input other than
Pin
V
(V
(V
N.C.
CS
D
N.C.
N.C.
D
D
D
/W R
terminal
Input Pins
DD
0
1
2
3
DD
DD
D
D
D
1
STD.P
0
0
0
CS
CS
(Unit:mm)
)
)
-
-
to D
to D
to D
1
1
3
3
3
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