S80C186EC20 Intel, S80C186EC20 Datasheet - Page 18

• Manufacturer Part Number: S80C186EC20
• Description: 16-BIT HIGH-INTEGRATION EMBEDDED PROCESSOR
• Manufacturer: Intel

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