RTC-72423A:3:ROHS Epson, RTC-72423A:3:ROHS Datasheet
RTC-72423A:3:ROHS
Manufacturer Part Number
RTC-72423A:3:ROHS
Description
Real Time Clock 4Bit 5.5Volts 24PIN 12/24 hr. -40C +85C
Manufacturer
Epson
Datasheet
1.RTC-72421AROHS.pdf
(2 pages)
Specifications of RTC-72423A:3:ROHS
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Rtc Bus Interface
Serial
Package / Case
SOP-24
Time Format
HH:MM:SS
Date Format
DW:DM:M:Y
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
*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
RTC - 72423
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
Real time clock module
Real time clock module
Real time clock module
Real time clock module
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
CS 0
AL E
CS 1
GND-0.3
72421A
72421B
72423A
W R
1234A
D3
D2
D1
D0
R D
A3
A2
A1
A0
72423
2.54
Min.
Min.
-0.3
-55
-55
4.5
2.0
-10
-40
#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
La tc h
Min.
Ga te
Ga te
Range
+0.3
10
50
20
50
No.
1
2
3
4
5
6
7
8
9
http://www.epsontoyocom.co.jp
0 -15
Decoder
Pin
STD.P
/CS
ALE
A
A
A
A
/RD
GND
OS C
terminal
0
1
2
3
30 s ec A DJ
10
0
7.62
Unit
Unit
Unit
10
-6
V
V
C
C
-6
/year
S1 to
CF
-6
/V
R E SE T
b it
0.25
bit
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
S TO 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
Cou nter
terminal
DD
0
1
2
3
Input capacity
D D
D D
1
)
)
D 10
S 10
Item
CE
HOL D
Actual size
RTC-72421
b it
M O1 MO 10
M I1
B U SY
b it
M I1 0
RTC-72423 (SOP 24-pin)
CF
#1
#1
#24
#24
1 S ec o nd ca rry
Symbol
EPSON 1234A
EPSON 1234A
1 M in ute c arry
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 2421/7 2423
OL1
OL2
IH1
OH
IH2
IL1
IL2
1
H1
Y1
16.3 Max.
16.3 Max.
64 Hz
24 /1 2
H 10
Y10
b it
Exclude input/
output current V
0.35
CS
V
O utp ut
S e lec to r
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
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.
ALE
A
N.C.
A1
N.C.
A
A
/RD
GND
terminal
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
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
(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
Related parts for RTC-72423A:3:ROHS
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC REAL TIME CLOCK 24-SOP
Manufacturer:
Epson Toyocom Corporation
Datasheet:
Part Number:
Description:
IC REAL TIME CLOCK 24-SOP
Manufacturer:
Epson Toyocom Corporation
Datasheet:
Part Number:
Description:
IC REAL TIME CLOCK 24-SOP
Manufacturer:
Epson Toyocom Corporation
Datasheet:
Part Number:
Description:
IC REAL TIME CLOCK 24-SOP
Manufacturer:
Epson Toyocom Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Epson
Datasheet:
Part Number:
Description:
Real time clock module(4-bit REAL TIME CLOCK MODULE)
Manufacturer:
Epson Company
Datasheet:
Part Number:
Description:
CXA1034M
Manufacturer:
EPSON Electronics
Datasheet:
Part Number:
Description:
Manufacturer:
EPSON Electronics
Datasheet:
Part Number:
Description:
Manufacturer:
EPSON Electronics
Datasheet:
Part Number:
Description:
Manufacturer:
EPSON Electronics
Datasheet:
Part Number:
Description:
Manufacturer:
EPSON Electronics
Datasheet:
RTC-72423A:3:ROHS Summary of contents
Page 1
... V =5.0 V 72423A DD 72423 Frequency - +70 C (+25 C) temperature TOP - +85 C(+25 C) characteristics Frequency voltage f/V T =+25 C characteristics Aging fa T =+25 C,V =5.0 V,First year a DD Actual size RTC-72421 RTC -7 2421/7 2423 OS C Cou nter HOL bit Decoder rry ute c arry ...
Page 2
... Epson Toyocom. ●The information, applied circuitry, programming, usage, etc., written in this material is intended for reference only. Epson Toyocom does not assume any liability for the occurrence of infringing on any patent or copyright of a third party ...