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M29W640DB 数据表(PDF) 24 Page - STMicroelectronics

部件名 M29W640DB
功能描述  64 Mbit 8Mb x8 or 4Mb x16, Boot Block 3V Supply Flash Memory
PDF  49 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M29W640DB 数据表(HTML) 24 Page - STMicroelectronics

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M29W640DT, M29W640DB
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Figure 11. Write AC Waveforms, Chip Enable Controlled
Table 14. Write AC Characteristics, Chip Enable Controlled
Note: 1. Sampled only, not 100% tested.
Symbol
Alt
Parameter
M29W640D
Unit
tAVAV
tWC
Address Valid to Next Address Valid
Min
90
ns
tWLEL
tWS
Write Enable Low to Chip Enable Low
Min
0
ns
tELEH
tCP
Chip Enable Low to Chip Enable High
Min
50
ns
tDVEH
tDS
Input Valid to Chip Enable High
Min
50
ns
tEHDX
tDH
Chip Enable High to Input Transition
Min
0
ns
tEHWH
tWH
Chip Enable High to Write Enable High
Min
0
ns
tEHEL
tCPH
Chip Enable High to Chip Enable Low
Min
30
ns
tAVEL
tAS
Address Valid to Chip Enable Low
Min
0
ns
tELAX
tAH
Chip Enable Low to Address Transition
Min
50
ns
tGHEL
Output Enable High Chip Enable Low
Min
0
ns
tEHGL
tOEH
Chip Enable High to Output Enable Low
Min
0
ns
tEHRL
(1)
tBUSY
Program/Erase Valid to RB Low
Max
35
ns
tVCHWL
tVCS
VCC High to Write Enable Low
Min
50
µs
AI05561
E
G
W
A0-A20/
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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