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M29W040B データシート(PDF) 14 Page - STMicroelectronics

部品番号 M29W040B
部品情報  4 Mbit 512Kb x8, Uniform Block Low Voltage Single Supply Flash Memory
PDF  20 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M29W040B データシート(HTML) 14 Page - STMicroelectronics

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Table 13. Write AC Characteristics, Chip Enable Controlled
(TA = 0 to 70°C or –40 to 85°C)
Symbol
Alt
Parameter
M29W040B
Unit
55
70
90 / 120
tAVAV
tWC
Address Valid to Next Address Valid
Min
55
70
90
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
45
45
ns
tDVEH
tDS
Input Valid to Chip Enable High
Min
25
30
45
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
30
30
30
ns
tAVEL
tAS
Address Valid to Chip Enable Low
Min
0
0
0
ns
tELAX
tAH
Chip Enable Low to Address Transition
Min
40
45
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
tVCHWL
tVCS
VCC High to Write Enable Low
Min
505050
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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