AT49F040A-55TU SL383 Atmel, AT49F040A-55TU SL383 Datasheet - Page 10

• Manufacturer Part Number: AT49F040A-55TU SL383
• Description: IC FLASH 4MBIT 55NS 32TSOP
• Manufacturer: Atmel

Specifications of AT49F040A-55TU SL383

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 4M (512K x 8)
• Speed: 55ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

17. AC Byte Load Characteristics
18. AC Byte Load Waveforms
18.1
18.2
10
Symbol
t
t
t
t
t
t
t
t
AS
AH
CS
CH
WP
DS
DH
WPH
, t
, t
OES
OEH
WE Controlled
CE Controlled
AT49F040A
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
WPH
0
0
0
0
Max
3359D–FLASH–3/05
Units
ns
ns
ns
ns
ns
ns
ns
ns