Z80180/Z8S180/Z8L180
Enhanced Z180 Microprocessor
Zilog
Table 1. Z80180/Z8S180/Z8L180 Pin Identification
Pin Number and Package Type
Secondary
Function
1
QFP
PLCC
DIP
Default Function
Control
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
46
47
48
49
50
43
44
45
46
47
/CTS0
/DCD0
TXA0
RXA0
CKA0
NC
/DREQ0
Bit 3 or Bit 5 of DMODE
51
52
53
54
55
56
57
58
59
60
48
TXA1
TEST
RXA1
CKA1
TXS
49
50
51
52
53
54
55
56
/TEND0
/CTS1
Bit 4 of CNTLA1
Bit 2 of STAT1
RXS
CKS
/DREQ1
/TEND1
/HALT
NC
NC
61
62
63
64
65
66
67
68
1
57
58
59
60
61
62
63
64
1
/RFSH
/IORQ
/MREQ
E
M1
/WR
/RD
PHI
V
V
SS
SS
73
2
3
74
75
76
77
78
79
80
2
XTAL
NC
4
5
6
7
8
3
4
5
6
7
EXTAL
/WAIT
/BUSACK
/BUSREQ
/RESET
DS971800401
P R E L I M I N A R Y
1-7
ZILOG [ ZILOG, INC. ]
