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M29W320DT Datasheet(PDF) 34 Page - STMicroelectronics

Part No. M29W320DT
Description  32 Mbit 4Mb x8 or 2Mb x16, Boot Block 3V Supply Flash Memory
Download  56 Pages
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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M29W320DT Datasheet(HTML) 34 Page - STMicroelectronics

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DC and AC parameters
M29W320DT, M29W320DB
34/56
Figure 10.
Write AC Waveforms, Write Enable Controlled
AI90199
E
G
W
A0-A20/
A–1
DQ0-DQ7/
DQ8-DQ15
VALID
VALID
VCC
tVCHEL
tWHEH
tWHWL
tELWL
tAVWL
tWHGL
tWLAX
tWHDX
tAVAV
tDVWH
tWLWH
tGHWL
RB
tWHRL
Table 13.
Write AC Characteristics, Write Enable Controlled
Symbol
Alt
Parameter
M29W320D
Unit
70
90
tAVAV
tWC
Address Valid to Next Address Valid
Min
70
90
ns
tELWL
tCS
Chip Enable Low to Write Enable Low
Min
0
0
ns
tWLWH
tWP
Write Enable Low to Write Enable High
Min
45
50
ns
tDVWH
tDS
Input Valid to Write Enable High
Min
45
50
ns
tWHDX
tDH
Write Enable High to Input Transition
Min
0
0
ns
tWHEH
tCH
Write Enable High to Chip Enable High
Min
0
0
ns
tWHWL
tWPH
Write Enable High to Write Enable Low
Min
30
30
ns
tAVWL
tAS
Address Valid to Write Enable Low
Min
0
0
ns
tWLAX
tAH
Write Enable Low to Address Transition
Min
45
50
ns
tGHWL
Output Enable High to Write Enable Low
Min
0
0
ns
tWHGL
tOEH
Write Enable High to Output Enable Low
Min
0
0
ns
tWHRL
(1)
tBUSY
Program/Erase Valid to RB Low
Max
30
35
ns
tVCHEL
tVCS
VCC High to Chip Enable Low
Min
50
50
µs
1.
Sampled only, not 100% tested.


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