M29W400DT, M29W400DB
DC and AC parameters
Figure 13. Write AC waveforms, Chip Enable controlled
tAVAV
A0-A17/
VALID
A–1
tELAX
tAVEL
tEHWH
W
tWLEL
tEHGL
G
tGHEL
tELEH
E
tEHEL
tEHDX
tDVEH
VALID
DQ0-DQ7/
DQ8-DQ15
V
CC
tVCHWL
RB
tEHRL
AI01870C
Table 14. Write AC characteristics, Chip Enable controlled
M29W400D
Symbol
Alt
Parameter
Unit
45
55
70
tAVAV
tWLEL
tELEH
tDVEH
tEHDX
tEHWH
tEHEL
tAVEL
tELAX
tGHEL
tEHGL
tWC
tWS
tCP
Address Valid to Next Address Valid
Write Enable Low to Chip Enable Low
Chip Enable Low to Chip Enable High
Input Valid to Chip Enable High
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Max
Min
45
0
55
0
70
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
30
25
0
30
30
0
30
45
0
tDS
tDH
tWH
tCPH
tAS
Chip Enable High to Input Transition
Chip Enable High to Write Enable High
Chip Enable High to Chip Enable Low
Address Valid to Chip Enable Low
Chip Enable Low to Address Transition
Output Enable High Chip Enable Low
Chip Enable High to Output Enable Low
Program/Erase Valid to RB Low
0
0
0
30
0
30
0
30
0
tAH
40
0
45
0
45
0
tOEH
tBUSY
tVCS
0
0
0
(1)
tEHRL
30
50
30
50
35
50
tVCHWL
VCC High to Write Enable Low
1. Sampled only, not 100% tested.
33/48
NUMONYX [ NUMONYX B.V ]
