¡ Semiconductor
ML9044
SwitchingCharacteristics(ThefollowingratingsaresubjecttochangeafterESevaluation.)
• Parallel Interface Mode
The timing for the input from the CPU (see 1) and the timing for the output to the CPU (see 2)
are as shown below:
1) WRITE MODE (Timing for input from the CPU)
(VDD = 2.5 to 5.5V, Ta = –40 to +85°C)
Parameter
R/W, RS0, RS1 Setup time
Symbol
Min
40
Typ
—
—
—
—
—
—
—
—
—
Max
—
Unit
ns
tB
tW
tA
tr
E Pulse Width
450
10
—
ns
R/W, RS0, RS1 Hold time
E Rise Time
—
ns
—
25
ns
E Fall Time
tf
—
25
ns
E Pulse Width
tL
tC
tI
430
1000
195
10
—
ns
E Cycle Time
—
ns
DB0 to DB7 Input Data Hold time
DB0 to DB7 Input Data Setup time
—
ns
tH
—
ns
VIH
VIL
VIH
VIL
RS1, RS0
R/W
VIL
VIL
tA
tr
tf
tB
tW
tL
VIH
VIH
E
VIL
VIL
VIL
tH
tI
Input
Data
VIH
VIL
VIH
VIL
DB0 to DB7
tc
12/54
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