AT49F512(1999) データシートの表示（PDF） - Atmel Corporation
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AT49F512 Datasheet PDF : 12 Pages
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AT49F512
Program Cycle Characteristics
Symbol
tBP
tAS
tAH
tDS
tDH
tWP
tWPH
tEC
Parameter
Byte Programming Time
Address Set-up Time
Address Hold Time
Data Set-up Time
Data Hold Time
Write Pulse Width
Write Pulse Width High
Erase Cycle Time
Program Cycle Waveforms
OE
Min
Typ
Max
10
50
0
50
50
0
90
90
10
PROGRAM CYCLE
CE
t
WP
t WPH
t BP
WE
tAS
t
AH
t
DH
A0-A15
5555
2AAA
5555
ADDRESS
DATA
t
DS
AA
55
A0
INPUT
DATA
Chip Erase Cycle Waveforms
OE
CE
WE
A0-A15
DATA
t
WP
t WPH
t AS
t
AH
t
DH
5555
2AAA
t
DS
AA
BYTE 0
55
BYTE 1
5555
80
BYTE 2
5555
AA
BYTE 3
2AAA
55
BYTE 4
5555
t
EC
10
BYTE 5
Note: OE must be high only when WE and CE are both low.
Units
µs
ns
ns
ns
ns
ns
ns
seconds
7
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