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參數(shù)資料
| 型號(hào)： | RTC-65271 |
| 廠商： | 愛普生（中國(guó)）有限公司 |
| 英文描述： | 8-Bit Real Time Clock Module(8位實(shí)時(shí)時(shí)鐘模塊) |
| 中文描述： | 8位實(shí)時(shí)時(shí)鐘模塊（8位實(shí)時(shí)時(shí)鐘模塊） |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大小： | 123K |
| 代理商： | RTC-65271 |
83
Real time clock module
External dimensions
Terminal connection
(Unit: mm)
NC is not connected internally.
1
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
Specifications (characteristics)
Absolute Max. rating
Operating conditions
Item
Supply voltage
Operating temperature
Frequency characteristics
DC characteristics
Item
1
Storage temperature as a discrete component.
(V
DD
= 5.0 V
±
10 %, Ta = -10 to + 70
°
C)
Condition
Min.
1: The frequency deviation (O x 10
-6
) at Ta=+25
°
C for
“
top
”
or at V
DD
=5 V for
“
fv
”
is
used as the reference value.
Note: For information on handling batteries, please independently refer to the pertinent regulations, as this product does not come equipped with batteries.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
No.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
A
0
A
1
TMODE
TCLOCK
STBY
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
GND
Pin Terminal
RTC
XRAM
WR
NC
RD
RESET
IRQ
NC
A
5
A
4
SQW
V
DD
A
3
A
2
Pin Terminal
36.8
Max.
1
9
M
0
3
15.24
15.24 to 18.0
2.54
0.46
RTC65271
5201C
E
8-bit REAL TIME CLOCK MODULE
RTC-65271
Built-in crystal unit allows adjustment-free efficient operation.
A builtin power supply switching circuit makes it possible to provide automatic
power supply backup to both the RTC and extended RAM.
The real-time clock block consists of:
Indirect register: 1-byte
Control register: 4-bytes
Clock, alarm, calendar: 10-bytes User RAM: 50-bytes
Extended RAM: 4k-bytes of builtin S-RAM
Page register: 1-byte Configuration: 32-bytes x 128 pages
The package is a 28-pin DIP IC with a battery holder that makes battery
replacement possible.
B
atteries (BR1225) are available as an option. (Batteries are packed separately
from the RTC
.)
Item
Supply voltage
Input voltage
Storage temperature
Soldering condition
Symbol
V
DD
V
IN
T
STG
T
SOL
Condition
V
DD -
GND
Input Pin
1
Unit
V
°
C
Symbol
V
DD
T
OPR
Condition
-------
Item
Frequency tolerance
Temperature
characteristics
Voltage
characteristics
Aging
Symbol
f/fo
T
OP
fv
f
a
Ta=+25
°
C, V
DD
=5 V
Ta=-10 to +70
°
C, V
DD
=5 V
1
Ta=stable, V
DD
=3 V
1
Ta=+25
°
C, V
DD
=5 V,
first year
Condition
Input voltage
Input leak current
Output voltage
Power supply current
Current when using
battery backup
Input current
Symbol
V
IH
V
IL
I
I
V
OH
V
OL
I
DD
I
BAT
I
STBY
——
______ ___ ___ ____
RESET,RD, WR, RTC,
XRAM, D
0
to D
7
, A
0
to A
5
V
DD
=5 V, I
LOAD
=-4 mA
V
DD
=5 V, I
LOAD
=4 mA
Output unloaded
Ta=+25
°
C
______
STBY=GND
Max.
V
DD
+0.3
0.8
±1
—
0.4
15
1.0
2
Unit
V
μA
V
mA
μA
2.2
-0.3
—
2.4
—
Min.
-0.3
-40
Max.
+7.0
V
DD
+0.3
+85
+260
°
C or less, for 10 s or less;
(package should be +150
°
C or less)
Unit
V
°
C
Min.
4.75
-10
Max.
5.5
+70
Typ.
5.0
—
Max.
5±20
+10
-120
±5
±5
Unit
x 10
-6
x 10
-6
/V
x 10
-6
/year
Typ.
—
0.5
—
Actual size
Batteries in this photograph are used only to show the inserted condition. This RTC is not supplied with the batteries inserted.
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