z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 20

• Manufacturer Part Number: z80189
• Description: Z80180, Z8s180, Z8l180 Mpu Operation
• Manufacturer: ZiLOG Semiconductor

V
INT1
INT0
INT2
A10
A11
A12
NMI
NC
NC
NC
NC
NC
A4
A5
SS
A6
A3
A7
A8
A9
ST
A0
A2
A1
Figure 3.
1
2
3
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
4
5
6
7
8
9
80-Pin QFP
Z8X180
Family MPU User Manual
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
DREQ1
TEND1
HALT
RFSH
NC
NC
CKS
RXS/CTS1
TXS
CKA1/TEND0
RXA1
TEST
TXA1
NC
CKA0/DREQ0
RXA0
TXA0
DCD0
CTS
RTS0
D7
NC
NC
D6
UM005003-0703
Z8018x
5