
MB90495G Series
74
DS07-13713-6E
(6) Bus Write Timing
(VCC
= 5.0 V±10%, VSS = 0.0 V, TA = 40 °C to +105 °C)
Parameter
Symbol
Pin Name
Value
Unit
Remarks
Min
Max
Valid Address
→ WR ↓ time
tAVWL
A23 to A16,
AD15 to AD00, WR
tCP
15
ns
WR pulse width
tWLWH
WR
3 tCP/2
20
ns
Valid data output
→ WR ↑ time
tDVWH
AD15 to AD00, WR 3 tCP/2
20
ns
WR
↑ → data hold time
tWHDX
AD15 to AD00, WR
20
ns
WR
↑ → address valid time
tWHAX
A23 to A16, WR
tCP/2
10
ns
WR
↑ → ALE ↑ time
tWHLH
WR, ALE
tCP/2
15
ns
WR
↑ → CLK ↑ time
tWLCH
WR, CLK
tCP/2
20
ns
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
CLK
ALE
WR (WRL, WRH)
A23 to A16
AD15 to AD00
tWHLH
tAVWL
tWLWH
tWHAX
tWHDX
tWLCH
tDVWH
Address
Write data