RTC72423B Epson Toyocom Corporation, RTC72423B Datasheet
RTC72423B
Manufacturer Part Number
RTC72423B
Description
IC, RTC, GREGORIAN CALENDAR, SOIC-24
Manufacturer
Epson Toyocom Corporation
Specifications of RTC72423B
Clock Ic Type
RTC
Supply Voltage Range
4.5V To 5.5V, 2V To 5.5V
Digital Ic Case Style
SOIC
No. Of Pins
24
Operating Temperature Range
-40°C To +85°C
Package / Case
24-SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
RTC72423B
Manufacturer:
EPSON
Quantity:
5 510
Company:
Part Number:
RTC72423B
Manufacturer:
MOTO
Quantity:
5 510
*Stored as bare product after unpacking
Operating range
Stored as bare produc after unpacking
Frequency characteristics
Absolute Max. rating
Frequency voltage
Supply voltage
Power voltage
temperature *
Clock voltage
Input voltage
temperature
characteristics
characteristics
4-bit REAL TIME CLOCK MODULE
RTC - 72421
Frequency
Operating
temperature
precision
Frequency
Storage
Block diagram
Terminal connection/External dimensions
Specifications (characteristics)
Built-in crystal unit allows adjustment-free efficient operation.
24 h /12 h changeable and leap year automatically adjustable
(Gregorian calendar).
Aging
Item
Item
Item
Symbol
Symbol
Symbol
RTC-72421 (DIP 18-pin)
V
T
TOP
T
V
V
V
f/V
fa
STG
OPR
CLK
f /f
DD
I/O
DD
1.52
0.46
T
V
T
a
T
DD
a
#18
=+25 °C
RTC-72421
RTC-72423
RTC-72421
RTC-72423
a
=+25 C,V
T
T
#1
Condition
Condition
-10 C to +70 C (+25 C)
=+25 C,V
-40 C to +85 C(+25 C)
=5.0 V
a
a
=+25 C
=+25 C
-
-
RTC72421 A
EPSON
Condition
23.1 Max.
DD
DD
=5.0 V,First year
=2.0 V to 5.5 V
C S0
AL E
C S1
GND-0.3
72421A
72421B
72423A
W R
1234A
D 3
D 2
D 1
D 0
R D
A3
A2
A1
A0
72423
2.54
Min.
Min.
-0.3
-55
-55
4.5
2.0
-10
-40
/
RTC - 72423
#10
#9
Min.
0.2
V
+10 / -120
+10 / -220
DD
+125
Max.
Max.
4.2
Max.
+7.0
3.3
+85
+70
+85
5.5
5.5
5.0 Max.
5.0 Max. 10
L atch
Min.
G ate
G ate
Range
+0.3
10
50
20
50
No.
1
2
3
4
5
6
7
8
9
0 -15
Decoder
http://www.epsontoyocom.co.jp
Pin
STD.P
/CS
ALE
A
A
A
A
/RD
GND
O SC
terminal
0
1
2
3
30 se c A DJ
10
0
7.62
Unit
Unit
Unit
10
-6
V
V
C
C
-6
/year
S 1 to
C F
-6
/V
R ES ET
b it
0.25
b it
No.
18
17
16
15
14
13
12
11
10
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.
DC characteristics
ST O P
LOW output voltage (1)
LOW output voltage (2)
HIGH input voltage (1)
HIGH input voltage (2)
b it
LOW input voltage (1)
LOW input voltage (2)
Current consumption
Input leak current (1)
Input leak current (2)
HIGH output voltage
OFF leak current
Pin
V
(V
(V
CS
C
D
D
D
/W R
S 1
D1
C D
Co un te r
terminal
DD
0
1
2
3
Input capacity
D D
D D
1
)
)
S 10
D1 0
Item
CE
HO LD
Actual size
RTC-72421
b it
MO 1 MO 1 0
MI1
B US Y
bit
M I10
RTC-72423 (SOP 24-pin)
CF
#1
#1
#24
#24
Symbol
1 Second carry
EPSON 1234A
EPSON 1234A
1 M in ute ca rry
RTC62423
RTC72423
I
V
V
OFFLK
1 H ou r c arry
1.27
I
I
V
V
V
V
V
I
I
DD1
DD2
C
LK1
LK2
RTC -7 24 21/72 42 3
OL1
OL2
IH1
OH
IH2
IL1
IL2
1
H 1
Y 1
16.3 Max.
16.3 Max.
64 H z
2 4/1
H10
Y 10
b it
Exclude input/
output current V
0.35
CS
V
Ou tpu t
Se lec tor
Input frequency
DD
1
I
= 0 V
V
=2.0 V to 5.5 V
V
I
OH
I
#13
#13
OL
OL
Condition
#12
#12
W
1
1
=V
=V
=-400 µA
1 MHz
RTC-72423
=2.5 mA
=2.5 mA
-
DD
DD
0.1 Min.
0.1 Min.
/0 V
/0 V
2.8 Max.
2.8 Max.
V
DD
DD
*Refer to application manual for details.
=5 V
=2 V
No.
10
11
12
1
2
3
4
5
6
7
8
9
0.2
0.2
4/5 V
Real time clock module
Real time clock module
Real time clock module
Real time clock module
S TD .P
1.0
Min.
-
2.2
-
-
2.4
-
-
-
Pin
STD.P
/CS
N.C.
ALE
A
N.C.
A1
N.C.
A
A
/RD
GND
terminal
0
2
3
DD
0
Typ.
0.9
-
-
10
20
1
0 - 10
0 - 10
No.
24
23
22
21
20
19
18
17
16
15
14
13
1/5 V
10/-10
10/-10
Max.
1/-1
-
0.8
0.4
-
0.4
-
10
5
Pin
V
(V
(V
N.C.
CS
D
N.C.
N.C.
D
D
D
/WR
terminal
DD
0
1
2
3
DD
DD
DD
1
)
)
Unit Applicable terminal
pF
V
V
V
A
A
A
All inputs other than
Input other than
D
Input other than
0
105
(Unit:mm)
to D
D
D
D
D
STD.P
0
0
0
0
CS
CS
-
-
to D
to D
to D
to D
3
, STD.P
1
1
3
3
3
3
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