M29W400DT, M29W400DB
Figure 13. Write AC waveforms, Chip Enable controlled
tAVAV
A0-A17/
A–1
VALID
tELAX
tAVEL
W
tWLEL
G
tGHEL
E
tELEH
tEHWH
DC and AC parameters
tEHGL
tEHEL
tDVEH
DQ0-DQ7/
DQ8-DQ15
VALID
tEHDX
VCC
tVCHWL
RB
tEHRL
AI01870C
Table 14.
Symbol
t
AVAV
t
WLEL
t
ELEH
t
DVEH
t
EHDX
t
EHWH
t
EHEL
t
AVEL
t
ELAX
t
GHEL
t
EHGL
t
EHRL(1)
t
VCHWL
Write AC characteristics, Chip Enable controlled
M29W400D
Alt
t
WC
t
WS
t
CP
t
DS
t
DH
t
WH
t
CPH
t
AS
t
AH
Parameter
45
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
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
t
OEH
t
BUSY
t
VCS
Chip Enable High to Output Enable Low
Program/Erase Valid to RB Low
V
CC
High to Write Enable Low
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Min
Max
Min
45
0
30
25
0
0
30
0
40
0
0
30
50
55
55
0
30
30
0
0
30
0
45
0
0
30
50
70
70
0
30
45
0
0
30
0
45
0
0
35
50
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
Unit
1. Sampled only, not 100% tested.
33/48
NUMONYX [ NUMONYX B.V ]
