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C80C251 データシートの表示(PDF) - Intel

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C80C251 Datasheet PDF : 34 Pages
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8xC251TA/TB/TP/TQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
WCLK
ALE
RD#/PSEN#
WAIT#
P2
P0
State 1
State 2
State 3
State 1 (next cycle)
TRLYX max
TRLYX min
TRLYV
TCLYV
TCLYX min
TCLYX max
RD#/PSEN# stretched
A15:8
D7:0
A7:0
stretched
stretched
A15:8
A7:0
A5001-02
Figure 13. External Bus Cycle: Code Fetch/Data Read (Page Mode)
26
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