參數(shù)資料
型號(hào)： RTC-72421
廠商： EPSON TOYOCOM CORP
元件分類： 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述： 0 TIMER(S), REAL TIME CLOCK, PDIP18
封裝： DIP-18
文件頁(yè)數(shù)： 1/2頁(yè)
文件大?。?/td> 293K
代理商： RTC-72421
Actual size
http://www.epsontoyocom.co.jp
Real time clock module
Epson Toyocom
Block diagram
Terminal connection/External dimensions
(Unit:mm)
Specifications (characteristics)
*Refer to application manual for details.
Absolute Max. rating
DC characteristics
Item
Symbol
Condition
Min.
Ma x.
Unit
Item
Symbol
Condition
Min.
Typ.
Ma x.
Unit Applicable terminal
Supply voltage
VDD
Ta=+25
°C
-0.3
+7.0
IDD1
VDD=5 V
1
10
-
Input voltage
VI/O
Ta=+25
°C
GND-0.3
VDD+0.3
V
Current consumption
IDD2
CS1= 0 V
Exclude input/
output current
VDD=2 V
-
0.9
5
A
-
RTC-72421
-55
+85
HIGH input voltage (1)
VIH1
2.2
-
Storage
temperature *
TSTG
RTC-72423
-55
+125
°C
LOW input voltage (1)
VIL1
-
0.8
V
All inputs other than
CS1
*Stored as bare product after unpacking
LOW output voltage (1)
VOL1
IOL=2.5 mA
-
0.4
Operating range
HIGH output voltage
VOH
IOH=-400 A
2.4
-
D0 to D3
Item
Symbol
Condition
Min.
Ma x.
Unit
LOW output voltage (2)
VOL2
IOL=2.5 mA
0.4
V
Power voltage
VDD
-
4.5
5.5
OFF leak current
IOFFLK
V1=VDD/0 V
-
10/-10
A
STD.P
Clock voltage
VCLK
-
2.0
5.5
V
10
Input other than
D0 to D3
RTC-72421
-10
+70
Input capacity
C1
Input frequency
1 MH z
-
20
pF
D0 to D3, STD.P
Operating
temperature
TOPR
RTC-72423
-40
+85
°C
HIGH input voltage (2)
VIH2
4/5 VDD
-
Stored as bare produc after unpacking
LOW input voltage (2)
VIL2
VDD=2.0 V to 5.5 V
-
1/5 VDD
V
CS1
Frequency characteristics
Input leak current (1)
ILK1
1/-1
A
Input other than
D0 to D3
Item
Symbol
Condition
Range
Unit
Input leak current (2)
ILK2
V1=VDD/0 V
-
10/-10
D0 to D3
72421A
±10
72421B
±50
72423A
±20
Frequency
precision
f /f
Ta=+25 °C
VDD=5.0 V
72423
±50
-10
°C to +70 °C (+25 °C)
+10 / -120
Frequency
temperature
characteristics
TOP
-40
°C to +85 °C(+25 °C)
+10 / -220
×10-6
Frequency voltage
characteristics
f/V
Ta=+25
°C,VDD=2.0 V to 5.5 V ±5.0 Max. ×10-6/V
Aging
fa
Ta=+25
°C,VDD=5.0 V,First year ±5.0 Max. ×10-6/year
OS C
R ESET
bi t
STOP
bit
30 sec A D J
bit
Count er
HOLD
bit
BU SY
bit
D3
D2
D1
D0
WR
RD
A 3
A 2
A 1
A 0
CS 0
A LE
CS 1
S 1
S 10
MI1
M I10
H1
H10
W
D1
D 10
M O 1 MO 10
Y1
Y 10
64 Hz
1 S ec ond carry
1 M inut e c arry
1 H our c arry
S1 t o
CF
CD
CE
CF
Gat e
Latc h
De coder
24/12
bi t
RT C-7 2421 /724 23
STD . P
O u tput
Se le c to r
RTC-72421
RTC-72423
4-bit REAL TIME CLOCK MODULE
RTC - 72421
RTC - 72423
Built-in crystal unit allows adjustment-free efficient operation.
24 h /12 h changeable and leap year automatically adjustable
(Gregorian calendar).
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.
RTC-72 421 (DIP 18 -pin)
7 .62
0° -15°
0. 25
0.46
4. 2
Max.
3.3
Min.
0. 2
Min.
2.54
1.52
2 3.1 Ma x.
6.
3
#1
#18
#10
#9
RTC7 2421 A
E PS ON
1234A
No .
Pin
te rmina l
No .
Pin
te rmina l
1
STD.P
18
VDD
2
/CS 0
17
(VDD)
3
AL E
16
(VDD)
4
A0
15
CS1
5
A1
14
C0
6
A2
13
D1
7
A3
12
D2
8
/RD
11
D3
9
GND
10
/W R
R TC -72423 (S OP 24-pin)
1. 0
0.2
0° - 10°
0.2
0° - 10°
1. 27
0.35
2.8 Max.
0.1 Min.
2.8 Max.
0.1 Min.
#12
#1
16.3 Max.
#24
#1 3
7
.9
12.
2
M
a
x
.
RTC 62423
E PS ON 1 234A
#12
#1
16.3 Max.
#24
#1 3
7
.9
12.
2
M
a
x
.
RTC 72423
E PS ON 1 234A
No .
Pin
te rmina l
No .
Pin
te rmina l
1
STD.P
24
VDD
2
/CS 0
23
(VDD)
3
N.C.
22
(VDD)
4
AL E
21
N.C.
5
A0
20
CS1
6
N.C.
19
D0
7
A1
18
N.C.
8
N.C.
17
N.C.
9
A2
16
D1
10
A3
15
D2
11
/RD
14
D3
12
GND
13
/WR
Product Number (Please contact us)
RTC-72421 : Q42724211xxxx00
RTC-72423 : Q42724231xxxx00
相關(guān)PDF資料
PDF描述
RTC-72423-0 0 TIMER(S), REAL TIME CLOCK, PDSO24
RTC-72423 0 TIMER(S), REAL TIME CLOCK, PDSO24
RTC-7301SFB-0 REAL TIME CLOCK, PDSO24
RTC-8564JEB-0 REAL TIME CLOCK, PDSO20
RTC-8564JE 0 TIMER(S), REAL TIME CLOCK, PDSO20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RTC-72421 B 制造商:Epson Toyocom Corporation 功能描述:32.768kHz 1.0uA@5ViTyp.j -3.0V to +7.0V 23.1~6.3~4.2mm +85 -40 }50ppm@+25/5.0V 23.1mm 6.3mm 4.2mm 制造商:Epson Toyocom Corporation 功能描述:32.768kHz 1.0uA@5ViTyp.j -3.0V to +7.0V 23.1~6.3~4.2mm +85 -40 }50ppm@+25/5.0V 23.1mm 6.3mm 4.2mm Bulk
RTC-72421(F)A 制造商:Epson Toyocom Corporation 功能描述:Cut Tape
RTC72421A 制造商:SEIKO EPSON 功能描述:Bulk
RTC-72421A 功能描述:IC REAL TIME CLOCK 18-DIP RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件
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