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SA556_98 데이터 시트보기 (PDF) - STMicroelectronics
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SA556_98
GENERAL PURPOSE DUAL BIPOLAR TIMERS
STMicroelectronics
SA556_98 Datasheet PDF : 9 Pages
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8
9
NE556/SA556/SE556
BLOCK DIAGRAM
V
C
+
C
THRES HOLD
CONTROL VOLTAGE
TR IGGE R
RESET
5 k
Ω
C O MP
R
FLIP-FLOP
5 k
Ω
Q
COMP
S
INHIBIT/
RESET
5 k
Ω
S
DISCHARGE
OUT 1/2 NE556
SCHEMATIC DIAGRAM
THRE S HOLD
COMPARATOR
V
CC
R1
4. 7k
Ω
R2
R3
8 30
Ω
4 .7k
Ω
CONTROL
VOLTAGE
5
R4 R8
1k
Ω
5 k
Ω
Q1 9
Q5
Q6
Q7
Q8 Q9
THRE S HOLD
TR IGGER
RES ET
DISC HARGE
G ND
R11
5k
Ω
Q1
Q2
Q4
Q3
R9
Q11 Q12
5 k
Ω
D2
2
Q1 0
Q13
Q16
4
Q15
7
Q14
1
R5
1 0k
Ω
R6
1 00 k
Ω
R7
1 0 0k
Ω
Q1 7
R1 0
5 k
Ω
OUTPUT
R12
6.8k
Ω
Q21
Q20
Q22
Ρ13
3.9 k
Ω
R17
4.7k
Ω
Q2 3
D1
3
R14
220
Ω
Q2 4
Q18
R16
R15
100
Ω
4.7k
Ω
TR IGGER COMPARATOR
FLIP FLOP
ABSOLUTE MAXIMUM RATINGS
Symbol
V
cc
T
oper
T
j
T
stg
Parameter
Supply Voltage
Operating Free Air Temperature Range
for NE556
for SA556
for SE556
Junction Temperature
Storage Temperature Range
2/9
Value
Unit
18
V
0 to 70
°
C
–40 to 105
–55 to 125
150
°
C
– 65 to 150
°
C
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