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Номер в каталоге
Компоненты Описание
M6242B Просмотр технического описания (PDF) - Oki Electric Industry
Номер в каталоге
Компоненты Описание
производитель
M6242B
DIRECT BUS CONNECTED CMOS REAL TIME CLOCK/CALENDAR
Oki Electric Industry
M6242B Datasheet PDF : 18 Pages
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¡ Semiconductor
TYPICAL APPLICATIONS — INTERFACE WITH MSM80C49
MSM6242B
22pf
4.553 KHz
22pf
100µf
26
2
X
1
V
DD
INT
6
ALE
11
RD
8
3
X
2
WR
10
MSM
80C49RS
DB0
12
40
V
CC
DB1
13
DB2
14
DB3
15
1
T
0
DB7
19
38
P
27
P17
34
3.9V
5
4.7µf (tantalum)
LITHIUM
BATTERY
5
5
(VFWD = < 0.3V)
i.e. GERMANIUM
18K
18
DIODE
1
V
DD
SDT.P
XT
17
15pf
3
ALE
8
RD
32.768 KHz
10
WR
XT
16
MSM
5-35pf
6242BRS
4/14
A/D
0
5/13
A/D
1
6/12
A/D
2
7/11
A/D
3
2
CS
0
15
CS
1
TR1
10K
V
SS
9
V
SS
820
20
1.8K
1.8K
TR2
5
2
RS232
3
DB25
7
CONNECTOR 5
20
220
1.8K
5
10µf
220
5.2V
1.8K
TR3
1.8K
TR1 = 2N2907
TR2 = 2N2907
TR3 = 2N2222
5
= 1N4148
RS232
INTERFACE
Figure 18.
37
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