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Sonic Alert msm80c154s
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MSM80C154/83C154/85C154
222
External program memory read cycle
tLHLL
tA
VLL
tLLPL
tPLPH
tLLIV
tPLIV
tLLAX
tAZPL
tPXIX
tPXIZ
tPXA
V
tA
VIV
A0~A7
INSTR IN
A0~A7
PO
RT 0
A8~A15
A0~A7
PORT
2
A8~A15
ALE
PSEN
1
...
...
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