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Part Name
Description
LS7166-S View Datasheet(PDF) - LSI Corporation
Part Name
Description
Manufacturer
LS7166-S
24-BIT QUADRATURE COUNTER
LSI Corporation
LS7166-S Datasheet PDF : 15 Pages
First
Prev
11
12
13
14
15
U1
30
XTAL
29
EXTAL
39 RESET
41 IRQ
40 XIRD
8 PA0
7 PA1
6 PA2
17 PE0
18 PE1
19 PE2
20 PE3
22
YRH
21
YRL
PA3
5
PA4
4
PA5
3
PA6
2
PA7
1
PB0
16
PB1
15
PB2
14
PB3
13
PB4
12
PB5
11
PB6
10
PB7
9
PC0 31 PC0
PC1 32 PC1
PC2 33 PC2
PC3 34 PC3
PC4 35 PC4
PC5 36 PC5
PC6 37 PC6
PC7 38 PC7
PD0 42
PD1 43
PD2 44
PD3 45
PD4 46
PD5 47
MODA 25
MODB 24
E
27
AS
26
28
RW
68HC11A1
+5V
FIGURE 11. LS7166 TO 68HC11 INTERFACE
U3
PC0
3 D0
PC1
4 D1
PC2
7 D2
PC3
8 D3
PC4
13 D4
PC5
14 D5
PC6
17 D6
PC7
18 D7
Q0
2
Q1
5
Q2
6
Q3
9
Q4
12
Q5
15
Q6
16
Q7
19
1
OC
11
G
74HC373
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
A0
CS/
8
9
D0
10
D1
11
D2
12
D3
13
D4
14
D5
15
D6
D7
18
2
C/D
CS
WR/ 1
RD/
19
WR
RD
V
DD
LS7166
16
CY
BW
17
LCTR/LLTC
3
4
RBGT/RCTR
6
A COUNT IN
B COUNT IN
7
GND
20
ADDRESS
DECODE
+5V
4
2
PR
D
5
Q
CLK
Q6
CL
1
U5 A
U6 A
74HC74
1
2
1
3
74HC04
2
74HC08
4
U6 B
6
5
U5 B
3
4
74HC08
74HC04
7166-110103-13
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