MSM6242B 查看數據表（PDF） - Oki Electric Industry
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MSM6242B Datasheet PDF : 18 Pages
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TYPICAL APPLICATIONS — INTERFACE WITH MSM80C49
MSM6242B
22pf
4.553 KHz
22pf
100µf
26
2
X1
VDD
INT
6
ALE 11
RD 8
3 X2
WR 10
MSM
80C49RS
DB0 12
40 VCC
DB1 13
DB2 14
DB3 15
1 T0
DB7 19
38 P27
P17 34
3.9V 5
4.7µf (tantalum)
LITHIUM
BATTERY
5
5(VFWD = < 0.3V)
i.e. GERMANIUM
18K
18
DIODE
1
VDD
SDT.P
XT 17
15pf
3 ALE
8 RD
32.768 KHz
10 WR
XT 16
MSM
5-35pf
6242BRS
4/14 A/D0
5/13 A/D1
6/12 A/D2
7/11 A/D3
2 CS0
15 CS1
TR1 10K
VSS 9
VSS
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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