AT49F040A-55TU Atmel, AT49F040A-55TU Datasheet - Page 10
![IC FLASH 4MBIT 55NS 32TSOP](/photos/7/21/72186/313-32-tsop_sml.jpg)
AT49F040A-55TU
Manufacturer Part Number
AT49F040A-55TU
Description
IC FLASH 4MBIT 55NS 32TSOP
Manufacturer
Atmel
Datasheet
1.AT49F040A-55JI.pdf
(17 pages)
Specifications of AT49F040A-55TU
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