Rainbow Electronics AT49F512 - Manual (Page 7)

AT49F512
7
Program Cycle Waveforms
Chip Erase Cycle Waveforms
Note: OE must be high only when WE and CE are both low.
Program Cycle Characteristics
Symbol Parameter Min Typ Max Units
t
BP
Byte Programming Time 10 50
µ
s
t
AS
Address Set-up Time 0 ns
t
AH
Address Hold Time 50 ns
t
DS
Data Set-up Time 50 ns
t
DH
Data Hold Time 0 ns
t
WP
Write Pulse Width 90 ns
t
WPH
Write Pulse Width High 90 ns
t
EC
Erase Cycle Time 10 seconds
OE
PROGRAM CYCLE
INPUT
DATA
ADDRESS
A0 55
5555 5555
AA
2AAA
t
BP
t
WPH
t
WP
CE
WE
A0-A15
DATA
t
AS
t
AH
t
DH
t
DS
OE
AA 80 10 55 55
5555 5555 5555
AA
BYTE 0 BYTE 1 BYTE 2 BYTE 3 BYTE 4 BYTE 5
2AAA 2AAA
t
WPH
t
WP
CE
WE
A0-A15
DATA
t
AS
t
AH
t
EC
t
DH
t
DS
5555