M29W022 データシートの表示（PDF） - STMicroelectronics
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M29W022 Datasheet PDF : 20 Pages
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Table 14. Write AC Characteristics, Chip Enable Controlled
(TA = 0 to 70°C or –40 to 85°C)
Symbol
Alt
Parameter
tAVAV
tWC Address Valid to Next Address Valid
Min
tWLEL
tWS Write Enable Low to Chip Enable Low
Min
tELEH
tCP Chip Enable Low to Chip Enable High
Min
tDVEH
tDS Input Valid to Chip Enable High
Min
tEHDX
tDH Chip Enable High to Input Transition
Min
tEHWH
tWH Chip Enable High to Write Enable High
Min
tEHEL
tCPH Chip Enable High to Chip Enable Low
Min
tAVEL
tAS Address Valid to Chip Enable Low
Min
tELAX
tAH Chip Enable Low to Address Transition
Min
tGHEL
Output Enable High Chip Enable Low
Min
tEHGL
tOEH Chip Enable High to Output Enable Low
Min
tVCHWL
tVCS VCC High to Write Enable Low
Min
M29W022BT, M29W022BB
M29W022B
Unit
55
70
90
55
70
90
ns
0
0
0
ns
40
45
45
ns
25
30
45
ns
0
0
0
ns
0
0
0
ns
30
30
30
ns
0
0
0
ns
40
45
45
ns
0
0
0
ns
0
0
0
ns
50
50
50
µs
Figure 10. Write AC Waveforms, Chip Enable Controlled
A0-A17
W
G
E
DQ0-DQ7
tAVEL
tWLEL
tGHEL
tAVAV
VALID
tELAX
tEHWH
tEHGL
tELEH
tDVEH
VALID
tEHEL
tEHDX
VCC
tVCHWL
AI02975
15/20
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