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參數(shù)資料
| 型號(hào)： | RTC-62423 |
| 廠商： | 愛(ài)普生（中國(guó)）有限公司 |
| 英文描述： | 4-Bit Real Time Clock Module(4位實(shí)時(shí)時(shí)鐘模塊) |
| 中文描述： | 4位實(shí)時(shí)時(shí)鐘模塊（4位實(shí)時(shí)時(shí)鐘模塊） |
| 文件頁(yè)數(shù)： | 2/2頁(yè) |
| 文件大小： | 124K |
| 代理商： | RTC-62423 |
76
Real time clock module
CS
1
CS
0
or WR not occurred
CS
1
1/5V
DD
V
DD
4
V
4
V
V
IH
2
V
IH
2
V
IL
2
V
IL
2
t
CDR
t
R
2 to 4
V
≤
Data storage mode
Interface possible
with external
terminals
Interface possible
with external
terminals
Data holding timing
Register table
32.768 kHz
WR
RD
D
3
D
2
D
1
D
0
A
3
A
2
A
1
A
0
CS
0
ALE
CS
1
OCS
G
A
T
E
G
A
T
E
G
A
T
E
&
L
A
T
C
H
D
E
C
O
D
E
R
S
I
to C
F
COUNTER
1 Hz
Rbit
Sbit
Hbit
Bbit
STD.P
1 1 sec64 Hz
1 hour carry
30sbit
30sec. ADJ bit
24 / 12 bit
S
1
S
10
D
1
D
10
M
10
H
1
H
10
Y
1
Y
10
W
M
1
MO
10
MO
1
C
D
C
E
C
F
V
DD
Switching characteristics
(ALE =While in use)
Item
CS
1
setup time
CS
1
hold time
Address setup time
Address hold time
ALE pulse width
ALE before WRITE
ALE before READ
ALE after WRITE
ALE after READ
WRITE pulse width
RD
to data
DATA hold
DATA setup time
DATA hold time
RD
/WR
recovery time
Read mode
Write mode
V
IH2
V
IH2
V
IH
1
V
IL
1
V
IH
1
V
IH
1
V
IH
1
t
DS
V
IL
1
V
IL
1
V
IL
1
V
IH
1
V
IL
1
V
IH
1
V
IH
1
t
ALW
V
IH
1
V
IH
1
V
IL
1
CS
0
ALE
WR
A
3
to A
0
D
3
0
(Input)
t
C1H
t
CIS
t
AS
t
RCV
t
AH
t
AW
t
WAL
t
WW
t
DH
CS
1
V
IH2
V
IH2
V
IH
1
V
IH
1
V
IL
1
V
IH
1
V
IL
1
t
RD
V
IL
1
V
IH
1
t
ALR
V
IH
1
V
OH
V
OL
V
IH
1
V
IL
1
CS
0
ALE
RD
A
3
to A
0
D
to D
0
(output)
t
CIH
t
C1S
t
AS
t
RCV
t
DR
t
AH
CS
1
“
Z
”
Block diagram
Supplement
0=
“
L
”
level. 1=
“
H
”
level
Note: Do not enter erroneous data for clock. This may result in time keeping error.
(V
DD
= 5 V
±
0.5 V, Ta = -40
°
C to + 85
°
C)
t
AW
t
RAL
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
A
3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
A
2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
A
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
A
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Name of
register
S
1
S
10
MI
1
MI
10
H
1
H
10
D
1
D
10
MO
1
MO
10
Y
1
Y
10
W
C
D
C
E
C
F
D
3
s
8
mi
8
h
8
d
8
mo
8
y
8
y
80
30 sec.
ADJ
t
1
TEST
D
2
s
4
s
40
mi
4
mi
40
h
4
PM/AM
d
4
mo
4
y
4
y
40
w
4
IRQ
FLAG
t
0
24/12
D
1
s
2
s
20
mi
2
mi
20
h
2
h
20
d
2
d
20
mo
2
y
2
y
20
w
2
BUSY
ITRPT
/STND
STOP
D
0
s
1
s
10
mi
1
mi
10
h
1
H
10
d
1
d
10
mo
1
mo
10
y
1
y
10
w
1
HOLD
MASK
RESET
Count
0 to 9
0 to 5
0 to 9
0 to 5
0 to 9
0 or
0 to 1
0 to 9
0 to 3
0 to 9
0 to 1
0 to 9
0 to 6
Note
1 - sec. digit register
10 - sec. digit register
1 - min. digit register
10 - min. digit register
1 - hour digit register
10 - hour digit register
1 - day digit register
10 - day digit register
1 - month digit register
10 - month digit register
1 - year digit register
10 - year digit register
Week register
Control register D
Control register E
Control register F
1
0
PM/AM
PM
AM
24/12
24
12
ITRPT/STND
ITRPT
STND
Bit name
mark
BUSY
IRQ FLAG
24/12
TEST
Description
Writable. Recognized as 0 while in read mode.
Read only (effective only when HOLD=1)
Enter
“
0
”
only when clearing interruption. Enter
“
1
”
otherwise.
Set able only when RESET=1
For our company's testing. TEST should be
“
0
”
in normal use.
Symbol
t
CIS
t
CIH
t
AS
t
AH
t
AW
t
ALW
t
ALR
t
WAL
t
RAL
t
WW
t
RD
t
DR
t
DS
t
DH
t
RCV
Condition
—
C
L
=150 pF
—
Min.
1000
1000
25
25
40
10
10
20
10
120
0
100
10
60
Max.
—
120
45
—
Unit
ns
A
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相關(guān)代理商/技術(shù)參數(shù) |
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