Z84C90 ZILOG [Zilog, Inc.], Z84C90 Datasheet - Page 25
Z84C90
Manufacturer Part Number
Z84C90
Description
KIO Serial/Parallel Counter Timer
Manufacturer
ZILOG [Zilog, Inc.]
Datasheet
1.Z84C90.pdf
(31 pages)
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Ready Mode
PS011802-0902
Wait Mode
WT/RDY
WT/RDY
D0–D7
A0–A3
D0–D7
IORQ
Clock
RD
RD
CS
Figure 10. I/O Read/Write Timing (M1 = 1)
48
2
1
3
6
6
5
47
7
48
12
4
7
9
KIO Serial/Parallel Counter Timer
49
8
8
15
11
10
10
Read Cycle
Write Cycle
Z84C90
20
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