AT49F040-55PI Atmel, AT49F040-55PI Datasheet - Page 9

• Manufacturer Part Number: AT49F040-55PI
• Manufacturer: Atmel

Specifications of AT49F040-55PI

• Cell Type: NOR
• Density: 4Mb
• Access Time (max): 55ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 19b
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: -40C to 85C
• Package Type: PDIP
• Program/erase Volt (typ): 4.5 to 5.5V
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Word Size: 8b
• Number Of Words: 512K
• Supply Current: 50mA
• Mounting: Through Hole
• Pin Count: 32
• Lead Free Status / Rohs Status: Not Compliant

Data Polling Characteristics
Notes:
Data Polling Waveforms
Toggle Bit Characteristics
Notes:
Toggle Bit Waveforms
Notes:
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.
2.
3.
Toggling either OE or CE or both OE and CE will operate toggle bit. The t
input(s).
Beginning and ending state of I/O6 will vary.
Any address location may be used but the address should not vary.
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 AC Read Characteristics.
spec in AC Read Characteristics.
(2)
(2)
(1)(2)(3)
(1)
(1)
OEHP
Min
Min
150
10
10
10
10
0
0
specification must be met by the toggling
AT49F040
Typ
Typ
Max
Max
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
9