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8405202QA 데이터 시트보기 (PDF) - Intersil
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8405202QA
CMOS 16-Bit Microprocessor
Intersil
8405202QA Datasheet PDF : 37 Pages
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Waveforms
(Continued)
80C86
CLK (82C84A OUTPUT)
AD
15
-AD
0
WRITE CYCLE
(
RD
,
INTA
,
DT/
R
= V
OH
)
DEN
WR
AD
15
-AD
0
INTA
CYCLE
(SEE NOTE)
(
RD
,
WR
= V
OH
BHE
= V
OL
)
DT/
R
INTA
DEN
t1
t2
(4)
TCH1CH2
(17)
TCLAV
(26)
TCLDV
TCLAX
(18)
AD15-AD0
TCVCTV (29)
(29) TCVCTV
(19)
TCLAZ
TCHCTV
(30)
(29) TCVCTV
(29) TCVCTV
t3
t
W
(5)
TCL2CL1
TW
t4
(27)
TCLDX2
DATA OUT
(31) TCVCTX
TWHDX
(28)
(38)
TWLWH
TCVCTX (31)
TDVCL (6)
POINTER
TCLDX1 (7)
TCHCTV (30)
TCVCTX
(31)
SOFTWARE
HALT -
DEN
,
RD
,
WR
,
INTA
= V
OH
AD
15
-AD
0
DT/
R
= INDETERMINATE
TCLAV
(17)
INVALID ADDRESS
SOFTWARE HALT
FIGURE 7B. BUS TIMING - MINIMUM MODE SYSTEM
NOTE: Two INTA cycles run back-to-back. The 80C86 local ADDR/DATA bus is floating during both INTA cycles. Control signals are shown for the
second INTA cycle.
21
FN2957.3
January 9, 2009
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