AT49F040B ATMEL [ATMEL Corporation], AT49F040B Datasheet - Page 10

• Manufacturer Part Number: AT49F040B
• Description: 4-megabit (512K x 8) 5-volt Only Flash Memory
• Manufacturer: ATMEL [ATMEL Corporation]

11. AC Read Characteristics
12. AC Read Waveforms
Notes:
10
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.
AT49F040B
without impact on t
DF
is specified from OE or CE whichever occurs first (CL = 5 pF).
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
ACC
ADDRESS
.
OUTPUT
ACC
CE
(1)(2)(3)(4)
- t
OE
CE
- t
OE
CE
after the falling edge of CE without impact on t
after the address transition without impact on t
HIGH Z
ADDRESS
t
ACC
t
CE
t
OE
VALID
OUTPUT
VALID
Min
0
0
0
t
OH
AT49F040B-55
t
DF
CE
ACC
or by t
.
ACC
Max
55
55
15
25
- t
OE
after an address change
3606A–FLASH–12/05
Units
ns
ns
ns
ns
ns