參數(shù)資料
型號: M29W040B90K1
廠商: 意法半導體
英文描述: 4 Mbit 512Kb x8, Uniform Block Low Voltage Single Supply Flash Memory
中文描述: 4兆位512KB的× 8,統(tǒng)一座低電壓單電源閃存
文件頁數(shù): 14/20頁
文件大小: 161K
代理商: M29W040B90K1
M29W040B
14/20
Table 13. Write AC Characteristics, Chip Enable Controlled
(T
A
= 0 to 70°C or –40 to 85°C)
Symbol
Alt
Parameter
M29W040B
Unit
55
70
90 / 120
t
AVAV
t
WC
Address Valid to Next Address Valid
Min
55
70
90
ns
t
WLEL
t
WS
Write Enable Low to Chip Enable Low
Min
0
0
0
ns
t
ELEH
t
CP
Chip Enable Low to Chip Enable High
Min
40
45
45
ns
t
DVEH
t
DS
Input Valid to Chip Enable High
Min
25
30
45
ns
t
EHDX
t
DH
Chip Enable High to Input Transition
Min
0
0
0
ns
t
EHWH
t
WH
Chip Enable High to Write Enable High
Min
0
0
0
ns
t
EHEL
t
CPH
Chip Enable High to Chip Enable Low
Min
30
30
30
ns
t
AVEL
t
AS
Address Valid to Chip Enable Low
Min
0
0
0
ns
t
ELAX
t
AH
Chip Enable Low to Address Transition
Min
40
45
45
ns
t
GHEL
Output Enable High Chip Enable Low
Min
0
0
0
ns
t
EHGL
t
OEH
Chip Enable High to Output Enable Low
Min
0
0
0
ns
t
VCHWL
t
VCS
V
CC
High to Write Enable Low
Min
50
50
50
μs
Figure 10. Write AC Waveforms, Chip Enable Controlled
AI02909
E
G
W
A0-A18
DQ0-DQ7
VALID
VALID
VCC
tVCHWL
tEHWH
tEHEL
tWLEL
tAVEL
tEHGL
tELAX
tEHDX
tAVAV
tDVEH
tELEH
tGHEL
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