M29F800AB データシートの表示（PDF） - STMicroelectronics
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M29F800AB Datasheet PDF : 22 Pages
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M29F800AT, M29F800AB
Table 16. Write AC Characteristics, Chip Enable Controlled
(TA = 0 to 70 °C, –40 to 85 °C or –40 to 125 °C)
Symbol
Alt
Parameter
M29F800A
Unit
70
90
tAVAV
tWC Address Valid to Next Address Valid
Min
70
90
ns
tWLEL
tWS Write Enable Low to Chip Enable Low
Min
0
0
ns
tELEH
tCP Chip Enable Low to Chip Enable High
Min
45
45
ns
tDVEH
tDS Input Valid to Chip Enable High
Min
30
45
ns
tEHDX
tDH Chip Enable High to Input Transition
Min
0
0
ns
tEHWH
tWH Chip Enable High to Write Enable High
Min
0
0
ns
tEHEL
tCPH Chip Enable High to Chip Enable Low
Min
20
20
ns
tAVEL
tAS Address Valid to Chip Enable Low
Min
0
0
ns
tELAX
tAH Chip Enable Low to Address Transition
Min
45
45
ns
tGHEL
Output Enable High Chip Enable Low
Min
0
0
ns
tEHGL
tOEH Chip Enable High to Output Enable Low
Min
0
0
ns
tEHRL (1)
tBUSY Program/Erase Valid to RB Low
Max
30
35
ns
tVCHWL
tVCS VCC High to Write Enable Low
Min
50
50
µs
Note: 1. Sampled only, not 100% tested.
Figure 10. Write AC Waveforms, Chip Enable Controlled
A0-A18/
A–1
W
G
E
DQ0-DQ7/
DQ8-DQ15
tAVEL
tWLEL
tGHEL
tAVAV
VALID
tELAX
tEHWH
tEHGL
tELEH
tDVEH
VALID
tEHEL
tEHDX
VCC
RB
tVCHWL
tEHRL
AI02184
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