AT49F001N ATMEL [ATMEL Corporation], AT49F001N Datasheet - Page 9

• Manufacturer Part Number: AT49F001N
• Description: 1-Megabit 128K x 8 5-volt Only Flash Memory
• Manufacturer: ATMEL [ATMEL Corporation]

Program Cycle Characteristics
Program Cycle Waveforms
Sector or Chip Erase Cycle Waveforms
Notes:
Symbol
t
t
t
t
t
t
t
t
BP
AS
AH
DS
DH
WP
WPH
EC
1.
2.
3.
OE must be high only when WE and CE are both low.
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.)
For chip erase, the data should be 10H, and for sector erase, the data should be 30H.
A0-A16
A0-A16
DATA
DATA
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
WE
WE
OE
OE
CE
CE
(1)
t
AS
t
AS
5555
5555
t
BYTE 0
AH
t
AA
AH
AA
t
t
DS
WP
t
t
DS
WP
2AAA
2AAA
BYTE 1
t
DH
55
t
DH
55
5555
t
WPH
BYTE 2
5555
80
PROGRAM CYCLE
t
WPH
A0
5555
BYTE 3
ADDRESS
AA
Min
50
50
90
90
0
0
INPUT
DATA
2AAA
BYTE 4
55
Note 2
Typ
t
10
BP
BYTE 5
Note 3
t
EC
Max
50
10
seconds
Units
ns
ns
ns
ns
ns
ns
s
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