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80C186EC Datasheet, PDF (18/57 Pages) Intel Corporation – 16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
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80C186EC 188EC 80L186EC 188EC
AD Bus
Name
Pin
AD0
76
AD1
75
AD2
74
AD3
73
AD4
69
AD5
68
AD6
67
AD7
66
AD8 (A8)
63
AD9 (A9)
62
AD10 (A10)
61
AD11 (A11)
60
AD12 (A12)
59
AD13 CAS0
58
(A13 CAS0)
AD14 CAS1
57
(A14 CAS1)
AD15 CAS2
56
(A15 CAS2)
A16 S3
80
A17 S4
79
A18 S5
78
A19 S6 ONCE 77
Table 5 QFP Pin Names with Package Location
Bus Control
Processor Control
Name
Pin
Name
Pin
ALE
55
BHE (RFSH) 54
S0
81
S1
82
S2
83
RD
53
WR
52
READY
88
DEN
50
DT R
49
LOCK
51
HOLD
47
HLDA
48
INTA
37
Power and Ground
Name
Pin
VCC
16
VCC
17
VCC
41
VCC
65
VCC
70
VCC
72
VCC
89
VSS
15
VSS
18
VSS
40
VSS
42
VSS
64
VSS
71
VSS
90
RESIN
11
RESOUT
10
CLKIN
13
OSCOUT
14
CLKOUT
9
TEST BUSY 86
(TEST)
PEREQ (VSS) 84
NCS (N C )
38
ERROR (VCC) 87
PDTMR
12
NMI
85
INT0
33
INT1
34
INT2
35
INT3
36
INT4
43
INT5
44
INT6
45
INT7
46
IO
Name
Pin
UCS
91
LCS
92
P1 7 GCS7
93
P1 6 GCS6
94
P1 5 GCS5
95
P1 4 GCS4
96
P1 3 GCS3
97
P1 2 GCS2
98
P1 1 GCS1
99
P1 0 GCS0 100
P2 7 CTS1
26
P2 6 BCLK1
25
P2 5 TXD1
24
P2 4 RXD1
23
P2 3 CTS0
22
P2 2 BCLK0
21
P2 1 TXD0
20
P2 0 RXD0
19
P3 5
32
P3 4
31
P3 3 DMAI1
30
P3 2 DMAI0
29
P3 1 TXI1
28
P3 0 RXI1
27
T0IN
6
T0OUT
5
T1IN
8
T1OUT
7
DRQ0
1
DRQ1
2
DRQ2
3
DRQ3
4
WDTOUT
39
18
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