AT49F040A ATMEL Corporation, AT49F040A Datasheet - Page 9

• Manufacturer Part Number: AT49F040A
• Description: 4-megabit (512K x 8) 5-volt Only Flash Memory
• Manufacturer: ATMEL Corporation

AC Byte Load Characteristics
AC Byte Load Waveforms
WE Controlled
CE Controlled
3359B–FLASH–10/04
Symbol
t
t
t
t
t
t
t
t
AS
AH
CS
CH
WP
DS
DH
WPH
, t
, t
OES
OEH
Parameter
Address, OE Set-up Time
Address Hold Time
Chip Select Set-up Time
Chip Select Hold Time
Write Pulse Width (WE or CE)
Data Set-up Time
Data, OE Hold Time
Write Pulse Width High
ADDRESS
ADDRESS
DATA IN
DATA IN
WE
WE
OE
OE
CE
CE
t
t
OES
t
t
t
OES
t
AS
CS
CS
AS
t
t
AH
AH
t
t
WP
WP
t
t
DS
DS
t
t
t
OEH
OEH
t
CH
CH
Min
t
t
t
t
25
20
20
20
DH
DH
WPH
0
0
0
0
WPH
Max
AT49F040A
Units
ns
ns
ns
ns
ns
ns
ns
ns
9