LS7212-S Ver la hoja de datos (PDF) - LSI Corporation
Número de pieza
componentes Descripción
Fabricante
LS7212-S Datasheet PDF : 8 Pages
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+V
3
V DD
+V
5
RCS/CLKS
10K
ƒ4
RC
.1µF
LS7211
25pF
470K
CRYSTAL
25pF
10M
5
XTLO
LS7212
4
XTLI
LS7211
4 CLOCK
4
CLOCK
LS7212
V SS
8
1
ƒ = 10 X 10 3 X .1 X 10-6 = 1 K H z
FIGURE 5. RC- Oscillator Connection
FIGURE 6. MULTI-TIMER WITH SINGLE CRYSTAL TIME-BASE
+V
3
V DD
120VAC
LS7211
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
LS7211
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
LS7211
18
TRIG
9
OUT
4
CLOCK
OUT
Vss
8
7211-102297-6
FIGURE 8. DELAY EXTENSION BY CASCADING
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