LS7211N 查看數據表（PDF） - LSI Corporation
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LS7211N Datasheet PDF : 8 Pages
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+V
10k
ƒ
0.1µF
+V
3
VDD
5
RCS/CLKS
4
RC
LS7211N
25pF
470k
CRYSTAL
25pF
5
XTLO
LS7212N
10M
4
XTLI
LS7211N
4
CLOCK
4
CLOCK
LS7212N
V SS
8
ƒ=
1
10 x 10 3 x 0.1- x 10 -6
= 1kHz
FIGURE 5. RC- Oscillator Connection
FIGURE 6. MULTI-TIMER WITH SINGLE CRYSTAL TIME-BASE
+V
3
V DD
120VAC
LS7211N
1M
4
CLOCK
200pF
V SS
8
FIGURE 7. DRIVING CLOCK INPUT FROM THE AC LINE
+V
3
V DD
*
8
10-17
WB0-WB7
*
2
1, 2
A, B
LS7211N
TRIGGER
ƒ
18
TRIG
4
CLOCK
9
OUT
Vss
8
* Connect for desired delay and mode
3
V DD
*
8 10-17 WB0-WB7
*
2
1, 2
A, B
LS7211N
18
TRIG
4
CLOCK
9
OUT
OUT
Vss
8
FIGURE 8. DELAY EXTENSION BY CASCADING
7211N-062209-6
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