at49bv040a ATMEL Corporation, at49bv040a Datasheet - Page 8

• Manufacturer Part Number: at49bv040a
• Description: At49bv040a 4-megabit 512k X 8 Single 2.7-volt Battery-voltage Flash Memory
• Manufacturer: ATMEL Corporation

10. AC Read Characteristics
11. 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.
AT49BV040A
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
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
Min
ADDRESS
0
0
0
t
ACC
AT49BV040A-70
t
CE
t
OE
VALID
Max
70
70
35
25
OUTPUT
VALID
t
OH
t
DF
CE
ACC
Min
or by t
0
0
0
.
AT49BV040A-90
ACC
- t
OE
after an address change
Max
90
90
40
25
3358C–FLASH–3/05
Units
ns
ns
ns
ns
ns