m29w400d Numonyx, m29w400d Datasheet - Page 33

• Manufacturer Part Number: m29w400d
• Description: 4 Mbit 512 Kb X 8 Or 256 Kb X 16, Boot Block 3 V Supply Flash Memory
• Manufacturer: Numonyx

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