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M29W400BB Datasheet(PDF) 15 Page - STMicroelectronics

Part No. M29W400BB
Description  4 Mbit (512Kb x8 or 256Kb x16, Boot Block) Low Voltage Single Supply Flash Memory
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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M29W400BB Datasheet(HTML) 15 Page - STMicroelectronics

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M29W400BT, M29W400BB
Figure 9. Read Mode AC Waveforms
AI02907
tAVAV
tAVQV
tAXQX
tELQX
tEHQZ
tGLQV
tGLQX
tGHQX
VALID
A0-A17/
A–1
G
DQ0-DQ7/
DQ8-DQ15
E
tELQV
tEHQX
tGHQZ
VALID
tBHQV
tELBL/tELBH
tBLQZ
BYTE
Table 14. Read AC Characteristics
(TA = 0 to 70°C or –40 to 85°C)
Note: 1. Sampled only, not 100% tested.
Symbol
Alt
Parameter
Test Condition
M29W400B
Unit
55
70
90 / 120
tAVAV
tRC
Address Valid to Next Address
Valid
E =VIL,
G =VIL
Min
55
70
90
ns
tAVQV
tACC
Address Valid to Output Valid
E =VIL,
G =VIL
Max
55
70
90
ns
tELQX
(1)
tLZ
Chip Enable Low to Output
Transition
G =VIL
Min
0
0
0
ns
tELQV
tCE
Chip Enable Low to Output Valid
G =VIL
Max
55
70
90
ns
tGLQX
(1)
tOLZ
Output Enable Low to Output
Transition
E =VIL
Min
0
0
0
ns
tGLQV
tOE
Output Enable Low to Output Valid
E =VIL
Max
30
30
35
ns
tEHQZ
(1)
tHZ
Chip Enable High to Output Hi-Z
G =VIL
Max
20
25
30
ns
tGHQZ
(1)
tDF
Output Enable High to Output Hi-Z
E =VIL
Max
20
25
30
ns
tEHQX
tGHQX
tAXQX
tOH
Chip Enable, Output Enable or
Address Transition to Output
Transition
Min
0
0
0
ns
tELBL
tELBH
tELFL
tELFH
Chip Enable to BYTE Low or High
Max
5
5
5
ns
tBLQZ
tFLQZ
BYTE Low to Output Hi-Z
Max
25
25
30
ns
tBHQV
tFHQV
BYTE High to Output Valid
Max
30
30
40
ns


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