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M29F400BT датащи(PDF) 33 Page - STMicroelectronics

номер детали M29F400BT
подробное описание детали  4 Mbit (512Kb x8 or 256Kb x16, Boot Block) single supply Flash memory
PDF  40 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M29F400BT датащи(HTML) 33 Page - STMicroelectronics

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M29F400BT, M29F400BB
DC and AC parameters
33/40
Figure 10.
Write AC waveforms, Chip Enable controlled
Table 14.
Write AC characteristics, Chip Enable controlled(1)
1.
TA = 0 to 70 °C, –40 to 85 °C or –40 to 125 °C
Symbol
Alt
Parameter
M29F400B
Unit
45
55
70 / 90
tAVAV
tWC
Address Valid to Next Address Valid
Min
45
55
70
ns
tWLEL
tWS
Write Enable Low to Chip Enable Low
Min
0
0
0
ns
tELEH
tCP
Chip Enable Low to Chip Enable High
Min
40
40
45
ns
tDVEH
tDS
Input Valid to Chip Enable High
Min
25
25
30
ns
tEHDX
tDH
Chip Enable High to Input Transition
Min
0
0
0
ns
tEHWH
tWH
Chip Enable High to Write Enable High
Min
0
0
0
ns
tEHEL
tCPH
Chip Enable High to Chip Enable Low
Min
20
20
20
ns
tAVEL
tAS
Address Valid to Chip Enable Low
Min
0
0
0
ns
tELAX
tAH
Chip Enable Low to Address Transition
Min
40
40
45
ns
tGHEL
Output Enable High Chip Enable Low
Min
0
0
0
ns
tEHGL
tOEH
Chip Enable High to Output Enable Low
Min
0
0
0
ns
tEHRL
(2)
2.
Sampled only, not 100% tested.
tBUSY Program/Erase Valid to RB Low
Max
30
30
30
ns
tVCHWL
tVCS
VCC High to Write Enable Low
Min
50
50
50
µ
s
AI01870C
E
G
W
A0-A17/
A–1
DQ0-DQ7/
DQ8-DQ15
VALID
VALID
VCC
tVCHWL
tEHWH
tEHEL
tWLEL
tAVEL
tEHGL
tELAX
tEHDX
tAVAV
tDVEH
tELEH
tGHEL
RB
tEHRL



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