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Description
8405202XA View Datasheet(PDF) - Intersil
Part Name
Description
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8405202XA
CMOS 16-Bit Microprocessor
Intersil
8405202XA Datasheet PDF : 35 Pages
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Waveforms
(Continued)
80C86
CLK (82C84A OUTPUT)
WRITE CYCLE
(RD, INTA,
DT/R = V
OH
)
AD15-AD0
DEN
WR
AD15-AD0
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 TW
(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
AD15-AD0
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.
3-160
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