RTC-72423A Epson Toyocom Corporation, RTC-72423A Datasheet
RTC-72423A
Manufacturer Part Number
RTC-72423A
Description
IC REAL TIME CLOCK 24-SOP
Manufacturer
Epson Toyocom Corporation
Type
Clock/Calendarr
Specifications of RTC-72423A
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
Surface Mount
Package / Case
24-SOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Memory Size
-
Other names
RTC72423A
SE3241
SE3241
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
RTC-72423A
Manufacturer:
EPSON/爱普生
Quantity:
20 000
Company:
Part Number:
RTC-72423A:ROHS
Manufacturer:
STM
Quantity:
140
*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
4-bit REAL TIME CLOCK MODULE
RTC - 72421
RTC - 72423
temperature
characteristics
characteristics
Frequency
temperature
Operating
precision
Frequency
Block diagram
Terminal connection/External dimensions
Storage
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
Real time clock module
Real time clock module
Real time clock module
Real time clock module
Symbol
Symbol
Symbol
RTC-72 421 (DIP 18 -pin)
TOP
V
T
T
V
V
V
f/V
fa
CLK
OPR
f /f
STG
DD
DD
I/O
1.52
0.46
T
V
T
T
a
DD
a
#18
RTC-72421
RTC-72423
RTC-72421
RTC-72423
=+25 °C
T
T
a
=+25 C,V
#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
-
-
RTC7 2421 A
EPSON
Condition
2 3.1 Ma x.
DD
DD
=5.0 V,First year
=2.0 V to 5.5 V
C S0
C S1
ALE
GND-0.3
W R
R D
1234A
72421A
72421B
72423A
D3
D2
D1
D0
A3
A2
A1
A0
72423
2.54
Min.
-0.3
Min.
-55
-55
-10
-40
4.5
2.0
#10
#9
Min.
0. 2
V
DD
+10 / -120
+10 / -220
Ma x.
+125
Ma x.
4. 2
Max.
+7.0
3.3
+85
+70
+85
5.5
5.5
Latc h
Min.
5.0 Max.
5.0 Max. 10
Gat e
Gat e
Range
+0.3
10
50
20
50
No .
1
2
3
4
5
6
7
8
9
http://www.epsontoyocom.co.jp
0 -15
De coder
Pin
STD.P
/CS
AL E
A
A
A
A
/RD
GND
OS C
te rmina l
0
1
2
3
30 s ec AD J
0
7 .62
10
Unit
Unit
Unit
10
-6
V
V
C
C
/year
S1 t o
CF
-6
-6
R ESET
/V
bit
0. 25
bi t
No .
18
17
16
15
14
13
12
11
10
Metal may be expo sed o n the top or bottom of th is pro duct. T his w ill not affect any qu ality, re liability o r electrical spec.
DC characteristics
S TOP
LOW output voltage (1)
LOW output voltage (2)
HIGH input voltage (1)
HIGH input voltage (2)
bit
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
S1
D1
C D
Count er
te rmina l
DD
0
1
2
3
Input capacity
D D
D D
1
)
)
S 10
D 10
Item
CE
H OLD
Actual size
bit
RTC-72421
M O 1 MO 10
MI1
BU SY
bit
M I10
R TC -72423 (SOP 24-pin)
C F
#1
#1
#24
#24
1 Sec ond carry
Symbol
1 M inut e c arry
EPSON 1 234A
EPSON 1 234A
RTC 62423
RTC 72423
I
V
V
OFFLK
1 H our c arry
I
I
V
V
V
V
V
1. 27
I
I
DD1
DD2
C
LK1
LK2
OL1
OL2
RT C-7 2421 /724 23
IH1
IL1
OH
IH2
IL2
H 1
1
Y1
16.3 Max.
16.3 Max.
64 Hz
2 4 / 1 2
H 10
Y10
b i t
Exclude input/
output current V
0.35
CS
O u tp u t
S e le c to r
V
DD
Input frequency
1
I
= 0 V
=2.0 V to 5.5 V
#1 3
#1 3
I
OH
I
V
V
Condition
OL
OL
#12
#12
W
1
1
=-400 µA
=V
1 MH z
=V
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
Product Number (Please contact us)
RTC-72421 : Q42724211xxxx00
RTC-72423 : Q42724231xxxx00
No .
10
11
12
1
2
3
4
5
6
7
8
9
0.2
0.2
4/5 V
S TD . P
1. 0
Min.
2.2
2.4
-
-
-
-
-
-
Pin
STD.P
/CS
N.C.
AL E
A
N.C.
A1
N.C.
A
A
/RD
GND
te rmina l
0
2
3
DD
0
Epson Toyocom
Epson Toyocom
Epson Toyocom
Epson Toyocom
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
Ma x.
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
te rmina l
D D
0
1
2
3
DD
D D
D D
1
)
)
Unit Applicable terminal
pF
V
V
V
A
A
A
All inputs other than
Input other than
Input other than
D
0
(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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RTC-72423A Summary of contents
Page 1
... Built-in crystal unit allows adjustment-free efficient operation /12 h changeable and leap year automatically adjustable (Gregorian calendar). Block diagram ALE C S1 Terminal connection/External dimensions RTC-72 421 (DIP 18 -pin #18 #10 RTC7 2421 A EPSON 1234A # Min. 1.52 0.46 2.54 Specifications (characteristics) Absolute Max. rating Item Symbol Condition Min ...
Page 2
EPSON TOYOCOM In order to meet customer needs in a rapidly advancing digital, broadband and ubiquitous society, we are committed to offering products that are one step ahead of the market and a rank above the rest in quality. ...