80C186EC/188EC, 80L186EC/188EC
Table 7. SQFP Pin Functions with Location
Bus Control Processor Control
ALE
AD Bus
I/O
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
73
72
71
70
66
65
64
63
60
59
58
57
56
55
54
53
77
76
75
74
52
51
78
79
80
50
49
85
46
47
48
44
45
RESIN
RESOUT
CLKIN
OSCOUT
CLKOUT
TEST/BUSY
NMI
8
UCS
LCS
88
89
BHE (RFSH)
S0
S1
7
10
11
6
P1.0/GCS0
P1.1/GCS1
P1.2/GCS2
P1.3/GCS3
P1.4/GCS4
P1.5/GCS5
P1.6/GCS6
P1.7/GCS7
97
96
95
94
93
92
91
90
S2
RD
83
82
30
31
32
33
40
41
42
43
34
81
84
35
9
WR
READY
DT/R
DEN
INT0
INT1
AD8 (A8)
AD9 (A9)
AD10 (A10)
AD11 (A11)
AD12 (A12)
AD13 (A13)
AD14 (A14)
AD15 (A15)
A16
INT2
INT3
LOCK
HOLD
HLDA
INT4
INT5
P2.0/RXD0
P2.1/TXD0
P2.2/BCLK0
P2.3/CTS0
P2.4/RXD1
P2.5/TXD1
P2.6/BCLK1
P2.7/CTS1
16
17
18
19
20
21
22
23
INT6
INT7
INTA
PEREQ (V
ERROR (V
)
SS
A17
A18
)
CC
NCS (N.C.)
PDTMR
A19/ONCE
P3.0/RXI1
P3.1/TXI1
P3.2/DMAI0
P3.3/DMAI1
P3.4
24
25
26
27
28
29
Power and Ground
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
13
14
38
62
67
69
86
12
15
37
39
61
68
87
P3.5
DRQ0
DRQ1
DRQ2
DRQ3
98
99
100
1
T0IN
T0OUT
T1IN
3
2
5
T1OUT
WDTOUT
4
36
21
INTEL [ INTEL ]
