M48Z128(2003) データシートの表示（PDF） - STMicroelectronics
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M48Z128 Datasheet PDF : 21 Pages
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M48Z128, M48Z128Y, M48Z128V*
Table 9. WRITE Mode AC Characteristics
M48Z128/Y M48Z128/Y/V M48Z128/Y/V
Symbol
Parameter(1)
–70
–85
–120
Unit
Min Max Min Max Min Max
tAVAV
WRITE Cycle Time
70
85
120
ns
tAVWL
Address Valid to WRITE Enable Low
0
0
0
ns
tAVEL
Address Valid to Chip Enable Low
0
0
0
ns
tWLWH
WRITE Enable Pulse Width
55
65
85
ns
tELEH
Chip Enable Low to Chip Enable High
55
75
100
ns
tWHAX
WRITE Enable High to Address Transition 5
5
5
ns
tEHAX
Chip Enable High to Address Transition
15
15
15
ns
tDVWH
Input Valid to WRITE Enable High
30
35
45
ns
tDVEH
Input Valid to Chip Enable High
30
35
45
ns
tWHDX
WRITE Enable High to Input Transition
0
0
0
ns
tEHDX
Chip Enable High to Input Transition
10
10
10
ns
tWLQZ(2,3) WRITE Enable Low to Output Hi-Z
25
30
40 ns
tAVWH
Address Valid to WRITE Enable High
65
75
100
ns
tAVEH
Address Valid to Chip Enable High
65
75
100
ns
tWHQX(2,3) WRITE Enable High to Output Transition
5
5
5
ns
Note: 1. Valid for Ambient Operating Temperature: TA = 0 to 70°C; VCC = 4.75 to 5.5V, 4.5 to 5.5V or 3.0 to 3.6V (except where noted).
2. CL = 5pF.
3. If E goes low simultaneously with W going low, the outputs remain in the high impedance state.
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