DC and AC parameters
M29W400DT, M29W400DB
Figure 12. Write AC waveforms, Write Enable controlled
tAVAV
A0-A17/
VALID
A–1
tWLAX
tAVWL
tWHEH
E
tELWL
tWHGL
G
tGHWL
tWLWH
W
tWHWL
tWHDX
tDVWH
VALID
DQ0-DQ7/
DQ8-DQ15
V
CC
tVCHEL
RB
tWHRL
AI01869C
Table 13. Write AC characteristics, Write Enable controlled
M29W400D
Symbol
Alt
Parameter
Unit
45
55
70
tAVAV
tELWL
tWLWH
tDVWH
tWHDX
tWHEH
tWHWL
tAVWL
tWLAX
tGHWL
tWHGL
tWC
tCS
tWP
tDS
Address Valid to Next Address Valid
Chip Enable Low to Write Enable Low
Write Enable Low to Write Enable High
Input Valid to Write 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
tDH
tCH
tWPH
tAS
Write Enable High to Input Transition
Write Enable High to Chip Enable High
Write Enable High to Write Enable Low
Address Valid to Write Enable Low
Write Enable Low to Address Transition
Output Enable High to Write Enable Low
Write 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)
tWHRL
30
50
30
50
35
50
tVCHEL
VCC High to Chip Enable Low
1. Sampled only, not 100% tested.
32/48
NUMONYX [ NUMONYX B.V ]
