LS7166 View Datasheet(PDF) - LSI Corporation
Part Name
Description
Manufacturer
LS7166 Datasheet PDF : 15 Pages
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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
VDD
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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