AT49F008A(2002) Ver la hoja de datos (PDF) - Atmel Corporation
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AT49F008A Datasheet PDF : 18 Pages
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AT49F008A(T)/8192A(T)
Program Cycle Characteristics
Symbol
tBP
tAS
tAH
tDS
tDH
tWP
tWPH
tEC
Parameter
Byte/Word Programming Time
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Write Pulse Width
Write Pulse Width High
Erase Cycle Time
Program Cycle Waveforms
OE
Min
0
50
50
0
50
40
PROGRAM CYCLE
CE
t WP
t WPH
t BP
WE
tAS
tAH
t DH
A0-A18
5555
2AAA
t DS
5555
ADDRESS
DATA
AA
55
A0
INPUT DATA
Typ
Max
Units
10
50
µs
ns
ns
ns
ns
ns
ns
5
seconds
5555
AA
Sector or Chip Erase Cycle Waveforms
(1)
OE
CE
WE
t AS
t WP
tAH
t DH
t WPH
A0-A18
5555
2AAA
t DS
5555
5555
2AAA
Note 2
t EC
DATA
AA
BYTE/
WORD 0
55
BYTE/
WORD 1
80
BYTE/
WORD 2
AA
BYTE/
WORD 3
55
BYTE/
WORD 4
Note 3
BYTE/
WORD 5
Notes:
1. OE must be high only when WE and CE are both low.
2. For chip erase, the address should be 5555. For sector erase, the address depends on what sector is to be erased.
(See note 4 under Command Definitions.)
3. For chip erase, the data should be 10H, and for sector erase, the data should be 30H.
11
1199G–FLASH–11/02
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