AT49F040A-70JU Atmel, AT49F040A-70JU Datasheet - Page 12

• Manufacturer Part Number: AT49F040A-70JU
• Description: IC FLASH 4MBIT 70NS 32PLCC
• Manufacturer: Atmel

Specifications of AT49F040A-70JU

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 4M (512K x 8)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

22. Data Polling Characteristics
Notes:
23. Data Polling Waveforms
24. Toggle Bit Characteristics
Notes:
25. Toggle Bit Waveforms
Notes:
12
Symbol
t
t
t
t
Symbol
t
t
t
t
t
DH
OEH
OE
WR
DH
OEH
OE
OEHP
WR
1. These parameters are characterized and not 100% tested.
2. See t
1. These parameters are characterized and not 100% tested.
2. See t
1. Toggling either OE or CE or both OE and CE will operate toggle bit. The t
2. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address should not vary.
AT49F040A
input(s).
Parameter
Data Hold Time
OE Hold Time
OE to Output Delay
Write Recovery Time
Parameter
Data Hold Time
OE Hold Time
OE to Output Delay
OE High Pulse
Write Recovery Time
OE
OE
spec in
spec in
I/O6
WE
CE
OE
“AC Read Characteristics”
“AC Read Characteristics”
WE
CE
OE
I/O7
A0-A18
t
DH
(2)
(2)
(1)(2)(3)
t
t
OEH
DH
t
OEH
(1)
t
OE
t
(1)
OE
An
.
.
HIGH Z
An
HIGH Z
t
OEHP
Min
Min
10
10
50
10
10
0
0
An
OEHP
An
specification must be met by the toggling
Typ
Typ
An
t
WR
t
WR
Max
Max
3359D–FLASH–3/05
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns