AT29C256-15 ATMEL [ATMEL Corporation], AT29C256-15 Datasheet - Page 6

• Manufacturer Part Number: AT29C256-15
• Description: 256K 32K x 8 5-volt Only CMOS Flash Memory
• Manufacturer: ATMEL [ATMEL Corporation]

AC Read Characteristics
Note:
AC Read Waveforms
Notes:
6
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.
AT29C256
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).
Not recommended for New Designs.
ACC
(1)(2)(3)(4)
.
ACC
CE
- t
- t
OE
CE
after the falling edge of CE without impact on t
after the address transition without impact on t
AT29C256-70
Min
0
0
0
Max
25
70
70
40
AT29C256-90
Min
0
0
0
Max
90
90
40
25
AT29C256-12
Min
CE
ACC
0
0
0
or by t
.
Max
120
120
ACC
50
30
- t
OE
AT29C256-15
Min
after an address change
0
0
0
0046P–FLASH–10/04
Max
150
150
70
40
Units
ns
ns
ns
ns
ns