AT49F040B ATMEL [ATMEL Corporation], AT49F040B Datasheet - Page 12

• Manufacturer Part Number: AT49F040B
• Description: 4-megabit (512K x 8) 5-volt Only Flash Memory
• Manufacturer: ATMEL [ATMEL Corporation]

16. AC Byte Load Characteristics
17. AC Byte Load Waveforms
17.1
17.2
12
Symbol
t
t
t
t
t
t
t
t
AS
AH
CS
CH
WP
WPH
DS
DH
, t
, t
OES
OEH
WE Controlled
CE Controlled
AT49F040B
Parameter
Address, OE Set-up Time
Address Hold Time
Chip Select Set-up Time
Chip Select Hold Time
Write Pulse Width (WE or CE)
Write Pulse Width High
Data Set-up Time
Data, OE Hold Time
ADDRESS
ADDRESS
DATA IN
DATA IN
WE
WE
OE
OE
CE
CE
t
t
OES
t
t
t
OES
t
CS
CS
AS
AS
t
t
AH
AH
t
t
WP
WP
t
t
DS
DS
t
t
OEH
t
OEH
t
CH
CH
t
t
t
t
DH
DH
WPH
Min
WPH
20
10
20
20
0
0
0
0
Max
3606A–FLASH–12/05
Units
ns
ns
ns
ns
ns
ns
ns
ns