Z80189 Datasheet, PDF (4/107 Pages) Zilog, Inc. – GENERAL-PURPOSE EMBEDDED CONTROLLERS

Zilog
PIN DESCRIPTION (Continued)
PRELIMINARY
Z80189/Z8L189
GENERAL-PURPOSE EMBEDDED CONTROLLERS
/HDDIS/TXA0
HA0
HA1/RXA0
HA2
/HCS/HC1
/HALT
HA3//RFSH
/IORQ
/MRD//MREQ
/IOCS2/E
/M1
/WR
/RD
PHI
VSS
XTAL
EXTAL
HA4//WAIT
HDRQ1//BUSACK
/HDACK1//BUSREQ
/RESET
/NMI
/INT0
/INT1/PC6
/INT2/PC7
75
76
80
85
90
95
100
1
70
65
60
Z80189/Z8L189
100-Pin VQFP
5
10
15
55
20
51
50
45
40
35
30
26
25
EV1
/ROMCS
/RAMCS
HDRQ0/RTS0
VDD
HA5//DREQ1
HC2/CKS
HINTR1/TOUT
HA9/CKA1//TEND0
VSS
/HDACK0/CKA0//DREQ0
PB7/RXS//CTS1
PB6/RXA1
PB5/TXA1
PB4/RXA0
PB3/TXA0
PB2//DCD0
PB1//CTS0
PB0/TXS
D7
D6
D5
D4
D3
D2
Figure 3. Z80189/Z8L189 100-Lead VQFP Pin Identification
4
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