ls7211 LSI Computer Systems, Inc., ls7211 Datasheet - Page 6

• Manufacturer Part Number: ls7211
• Description: Programmable Digital Delay Timer
• Manufacturer: LSI Computer Systems, Inc.

7211-012703-6
FIGURE 5. RC- Oscillator Connection
TRIGGER
+V
10K
. 1 µ F
ƒ =
*
*
10 X 10
ƒ
ƒ
*
8
2
5
4
Connect for desired delay and mode
3
1
X .1 X 10
R C S / C L K S
RC
1 0 - 1 7
1 , 2
L S 7 2 1 1
18
4
V
V
+V
-6
3
DD
SS
8
WB0-WB7
A,B
TRIG
CLOCK
FIGURE 8. DELAY EXTENSION BY CASCADING
= 1KHz
L S 7 2 1 1
3
8
Vss
V
DD
+V
OUT
9
2 5 p F
FIGURE 6.
1 2 0 V A C
FIGURE 7. DRIVING CLOCK INPUT FROM THE AC LINE
MULTI-TIMER WITH SINGLE CRYSTAL TIME-BASE
2 5 p F
CRYSTAL
4 7 0 K
*
*
1M
2
10M
8
1 0 - 1 7
5
4
1 , 2
18
XTLI
XTLO
L S 7 2 1 2
4
2 0 0 p F
WB0-WB7
A,B
TRIG
CLOCK
4
L S 7 2 1 1
8
3
CLOCK
Vss
V
L S 7 2 1 1
DD
V
OUT
V
+
DD
SS
V
8
3
9
4
4
CLOCK
CLOCK
L S 7 2 1 1
L S 7 2 1 2
OUT