80C186EA Datasheet, PDF (19/50 Pages) Intel Corporation – 16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS

80C186EA 80C188EA 80L186EA 80L188EA
Table 8 SQFP Pin Functions with Package Location
AD Bus
Bus Control
Processor Control
IO
AD0
1
AD1
3
AD2
6
AD3
8
AD4
12
AD5
14
AD6
16
AD7
18
AD8 (A8)
2
AD9 (A9)
5
AD10 (A10)
7
AD11 (A11)
9
AD12 (A12)
13
AD13 (A13)
15
AD14 (A14)
17
AD15 (A15)
19
A16 S3
21
A17 S4
22
A18 S5
23
A19 S6
24
ALE QS0
29
BHE (RFSH)
26
S0
40
S1
39
S2
38
RD QSMD
28
WR QS1
27
ARDY
37
SRDY
44
DEN
56
DT R
54
LOCK
45
HOLD
43
HLDA
42
No Connection
NC
4
NC
25
NC
35
NC
72
NOTE
Pin names in parentheses apply to the 80C186EA 80L188EA
RESIN
73
RESOUT
34
CLKIN
32
OSCOUT
33
CLKOUT
36
TEST BUSY
46
NMI
47
INT0
48
INT1 SELECT 49
INT2 INTA0
52
INT3 INTA1
53
PDTMR
55
Power and Ground
V_CC
10
V_CC
11
V_CC
20
V_CC
50
V_CC
51
V_CC
61
V_SS
30
V_SS
31
V_SS
41
V_SS
70
V_SS
80
UCS
62
LCS
63
MCS0 PEREQ 57
MCS1 ERROR 58
MCS2
59
MCS3 NPS
60
PCS0
71
PCS1
69
PCS2
68
PCS3
67
PCS4
66
PCS5 A1
65
PCS6 A2
64
TMR IN 0
77
TMR IN 1
76
TMR OUT 0
75
TMR OUT 1
74
DRQ0
79
DRQ1
78
Table 9 SQFP Pin Locations with Pin Names
1
AD0
2
AD8 (A8)
21
A16 S3
22
A17 S4
41 V_SS
42 HLDA
3
AD1
23
A18 S5
43 HOLD
4
NC
24
A19 S6
44 SRDY
5
AD9 (A9)
25
NC
45 LOCK
6
AD2
26
BHE (RFSH)
46 TEST BUSY
7
AD10 (A10)
27
WR QS1
47 NMI
8
AD3
28
RD QSMD
48 INT0
9
AD11 (A11)
29
ALE QS0
49 INT1 SELECT
10
V_CC
11
V_CC
12
AD4
30
V_SS
31
V_SS
32
X1
50 V_CC
51 V_CC
52 INT2 INTA0
13
AD12 (A12)
33
X2
53 INT3 INTA1
14
AD5
34
RESET
54 DT R
15
AD13 (A13)
35
NC
55 PDTMR
16
AD6
36
CLKOUT
56 DEN
17
AD14 (A14)
37
ARDY
57 MCS0 PEREQ
18
AD7
38
S2
58 MCS1 ERROR
19
AD15 (A15)
39
S1
59 MCS2
20
V_CC
40
S0
60 MCS3 NPS
NOTE
Pin names in parentheses apply to the 80C186EA 80L188EA
61
V_CC
62 UCS
63 LCS
64 PCS6 A2
65 PCS5 A1
66 PCS4
67 PCS3
68 PCS2
69 PCS1
70
V_SS
71 PCS0
72 N C
73 RES
74 TMR OUT 1
75 TMR OUT 0
76 TMR IN 1
77 TMR IN 0
78 DRQ1
79 DRQ0
80
V_SS
19
19