80C186XL/80C188XL
Table 8. SQFP Pin Functions with Location
Bus Control Processor Control
ALE/QS0
AD Bus
I/O
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
1
3
29
26
40
39
38
28
27
37
44
56
54
45
43
42
RES
73
UCS
LCS
62
63
BHE (RFSH)
S0
S1
RESET
X1
X2
34
32
33
36
46
47
48
49
52
53
6
8
MCS0/PEREQ
MCS1/ERROR
MCS2
57
58
59
60
12
14
16
18
2
S2
CLKOUT
TEST/BUSY
NMI
RD/QSMD
WR/QS1
ARDY
SRDY
DEN
MCS3/NPS
INT0
AD8 (A8)
AD9 (A9)
AD10 (A10)
AD11 (A11)
AD12 (A12)
AD13 (A13)
AD14 (A14)
AD15 (A15)
A16/S3
INT1/SELECT
INT2/INTA0
INT3/INTA1
PCS0
PCS1
71
69
68
67
66
65
64
5
7
DT/R
PCS2
PCS3
9
LOCK
HOLD
HLDA
13
15
17
19
21
22
23
24
PCS4
PCS5/A1
PCS6/A2
Power and Ground
V
10
CC
CC
CC
CC
CC
CC
SS
SS
SS
SS
SS
V
V
V
V
V
V
V
V
V
V
11
20
50
51
61
30
31
41
70
80
No Connection
TMR IN 0
TMR IN 1
77
76
75
74
N.C.
N.C.
N.C.
N.C.
N.C.
4
25
35
55
72
A17/S4
A18/S5
A19/S6
TMR OUT 0
TMR OUT 1
DRQ0
DRQ1
79
78
NOTE:
Pin names in parentheses apply to the 80C188XL.
Table 9. SQFP Pin Locations with Pin Names
1
2
AD0
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
A16/S3
A17/S4
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
V
HLDA
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
V
CC
UCS
SS
AD8 (A8)
AD1
N.C.
3
A18/S5
A19/S6
N.C.
HOLD
SRDY
LOCK
LCS
4
PCS6/A2
PCS5/A1
PCS4
5
AD9 (A9)
AD2
6
BHE (RFSH)
WR/QS1
RD/QSMD
ALE/QS0
TEST/BUSY
NMI
INT0
7
AD10 (A10)
AD3
AD11 (A11)
PCS3
PCS2
PCS1
8
9
INT1/SELECT
10
11
12
13
14
15
16
17
18
19
20
V
V
V
V
V
V
V
SS
PCS0
CC
CC
SS
CC
CC
SS
AD4
AD12 (A12)
AD5
X1
X2
INT2/INTA0
INT3/INTA1
DT/R
N.C.
RES
RESET
N.C.
CLKOUT
ARDY
S2
TMR OUT 1
TMR OUT 0
TMR IN 1
TMR IN 0
DRQ1
AD13 (A13)
AD6
N.C.
DEN
AD14 (A14)
AD7
AD15 (A15)
MCS0/PEREQ
MCS1/ERROR
MCS2
S1
S0
DRQ0
V
SS
V
MCS3/NPS
CC
NOTE:
Pin names in parentheses apply to the 80C188XL.
21
ETC [ ETC ]
