Z89135 Datasheet, PDF (13/66 Pages) Zilog, Inc. – Low-Cost DTAD Controller

Zilog
AC CHARACTERISTIC
External I/O or Memory Read and Write Timing Diagram
Z89135/136 (ROMless)
Low-Cost DTAD Controller
1
R//W
Port 0, /DM
Port 1
12
16
19
3
A7 - A0
1
2
13
D7 - D0 IN
9
/AS
/DS
(Read)
Port1
/DS
(Write)
4
5
17
A7 - A0
14
8
6
18
11
10
D7 - D0 OUT
15
7
Figure 6. External I/O or Memory Read/Write Timing
DS97TAD0300
PRELIMINARY
1-13