RTC-62421B:ROHS Epson Toyocom Corporation, RTC-62421B:ROHS Datasheet
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RTC-62421B:ROHS
Manufacturer Part Number
RTC-62421B:ROHS
Description
IC REAL TIME CLOCK 18-DIP
Manufacturer
Epson Toyocom Corporation
Type
Clock/Calendarr
Specifications of RTC-62421B:ROHS
Time Format
HH:MM:SS (12/24 hr)
Date Format
YY-MM-DD
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
18-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
Other names
RTC-62421B:ROHS
SER3248
SER3248
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