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  Datasheet File OCR Text:
 SB3298
P. 1
IC
1.35V - 5.00VDC Bi Bi a. BZ1 -- duty = 1/3 b. BZ2 -- duty = 1/6 LEVEL HOLD , VDD - NPN 8050 , Bi Bi - NPN 8050 , Bi Bi
1. : 2. : 3. BZ1, BZ2 :
4. 5. 6. 7.
KEY Rosc LAMP LED
: : : : : :

3VDC BZ LED
1 2 3 4
BZ1 LAMP LED KEY
VDD VSS
8 7
OSCO 6 OSCI 5
8050 Rosc 390K
8050
SB3298A
IC PIN ASSIGNMENT
LED LAMP BZ2 BZ1 LAMP LED KEY
8 PIN DIP
1 2 3 4 8 7 6 5
VDD VSS OSCO OSCI
KEY OSCI
SB3298
BZ1 VDD
TOP MARK: 3298A
BZ1 LAMP --KEY
1 2 3 4 8 7 6 5
OSCO VSS TEST
VDD VSS OSCO OSCI
BZ1 ----KEY
1 2 3 4
8 7 6 5
VDD VSS OSCO OSCI
1210 X 1280M IC VDD
TOP MARK: 3298B
TOP MARK: 3298C
1
SB3298
P. 2
IC
SB-3298 1. PS , BZ
3VDC BZ SB3298 8050
BZ1 LAMP LED KEY VDD VSS OSCO OSCI
CHOKE
390K C
2. 12VDC - - , -
12VDC
1K C
SB3298
BZ1 LAMP LED KEY VDD VSS OSCO OSCI
1K
R 1K
2
SB3298
P. 2
IC
SB-3298
1N4001
12VDC
2.7K CHOKE BZ SB3298 D313 D206 C945 C1815 R
BZ1 LAMP LED KEY VDD VSS OSCO OSCI
2.7K
390K
1N4001
12VDC
R1 CHOKE BZ SB3298 D313 D206 R2
BZ1 LAMP LED KEY VDD VSS OSCO OSCI
390K
3
SB3298
P. 2
IC
SB3298
SB3029
12VDC
4.7K BZ
1 2 3 4
BZ1 LAMP LED KEY
VDD VSS
8 7
OSCO 6 OSCI 5
8050 Rosc 390K 1K
SB3298A
8 PIN DIP
BZ1 LAMP LED KEY
1 2 3 4 8 7 6 5
VDD VSS OSCO OSCI
TOP MARK: 3298A
12VDC
4.7K BZ
1 2 3 4
BZ1 BZ2 K2 K5
VDD VSS
8 7
OSCO 6 OSCI 5
8050 Rosc 390K 1K
SB3029
4


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