MC80287 データシートの表示（PDF） - Intel
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MC80287 Datasheet PDF : 24 Pages
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M80287
A C CHARACTERISTICS (Over Specified Operating Conditions)
TIMING RESPONSES
Symbol
Parameter
6 MHz
8 MHz
10 MHz
Unit Comments
-6 Min -6 Max -8 Min -8 Max -10 Min -10 Max
TRHQZ NPRD Inactive to Data Float
37 5
35
TRLQV NPRD Active to Data Valid
60
60
TILBH ERROR Active to BUSY
100
100
100
Inactive
25 ns (Note 2)
60 ns (Note 3)
ns (Note 4)
TWLBV NPWR Active to BUSY Active
100
100
TKLML PEACK Active to PEREQ
Inactive
127
127
100 ns (Note 5)
127 ns (Note 6)
TCMDI Command Inactive Time
Write-to-Write
95
95
75
ns At 2 0V
Read-to-Read
95
95
75
ns At 2 0V
Write-to-Read
95
95
75
ns At 2 0V
Read-to-Write
95
95
75
ns At 2 0V
TRHCH Data Hold from NPRD
3
3
Inactive
3
ns (Note 7)
NOTES
2 Float condition occurs when output current is less than ILO on D0 – D15
3 D0 – D15 loading CL e 100 pF
4 BUSY loading CL e 100 pF
5 BUSY loading CL e 100 pF
6 On last data transfer of numeric instruction
7 D0 – D15 loading CL e 100 pF
6
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