at49bv4096 ATMEL Corporation, at49bv4096 Datasheet - Page 8

• Manufacturer Part Number: at49bv4096
• Description: 4-megabit 256k X 16 3-volt Only Flash Memory
• Manufacturer: ATMEL Corporation

Program Cycle Characteristics
Program Cycle Waveforms
Sector or Chip Erase Cycle Waveforms
Notes:
8
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 10
Parameter
Word 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
AT49BV/LV4096
A0-A17
DATA
A0-A17
WE
OE
CE
DATA
WE
OE
CE
(1)
t
AS
t
AS
5555
WORD 0
t
5555
AH
AA
t
AH
AA
t
t
DS
WP
2AAA
t
t
DS
WP
H
WORD 1
, and for sector erase, the data should be 30
t
2AAA
DH
55
t
DH
55
5555
t
WPH
WORD 2
5555
80
PROGRAM CYCLE
t
WPH
A0
5555
WORD 3
ADDRESS
AA
INPUT
DATA
2AAA
Min
100
100
200
200
WORD 4
0
0
55
t
BP
Note 2
H
.
WORD 5
Note 3
Typ
30
t
EC
5555
AA
Max
50
10
seconds
Units
ns
ns
ns
µs
ns
ns
ns