AT49F040A-70JU Atmel, AT49F040A-70JU Datasheet - Page 8

• 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

12. AC Read Characteristics
13. AC Read Waveforms
Notes:
8
Symbol
t
t
t
t
t
ACC
CE
OE
DF
OH
(1)
(3)(4)
(2)
1. CE may be delayed up to t
2. OE may be delayed up to t
3. t
4. This parameter is characterized and is not 100% tested.
AT49F040A
without impact on t
DF
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
CE or OE to Output Float
Output Hold from OE, CE or Address,
whichever occurred first
is specified from OE or CE whichever occurs first (CL = 5 pF).
ACC
.
ACC
CE
ADDRESS
(1)(2)(3)(4)
- t
OUTPUT
- t
OE
CE
after the falling edge of CE without impact on t
OE
CE
after the address transition without impact on t
HIGH Z
ADDRESS
t
ACC
Min
t
0
0
0
CE
AT49F040A-55
t
OE
VALID
OUTPUT
VALID
Max
55
55
30
25
t
OH
t
DF
CE
ACC
Min
or by t
0
0
0
AT49F040A-70
.
ACC
- t
OE
Max
after an address change
70
70
35
25
3359D–FLASH–3/05
Units
ns
ns
ns
ns
ns