AT29C040 ATMEL Corporation, AT29C040 Datasheet - Page 5

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AT29C040

Manufacturer Part Number
AT29C040
Description
4-Megabit 512K x 8 5-volt Only 256-Byte Sector CMOS Flash Memory
Manufacturer
ATMEL Corporation
Datasheet

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Notes: 1. CE may be delayed up to t
AC Read Characteristics
AC Read Waveforms
t
Pin Capacitance
Note:
Input Test Waveforms and Measurement Level
R
Symbol
t
t
t
t
t
ACC
CE
OE
DF
OH
, t
C
C
F
(3, 4)
(1)
(2)
IN
OUT
< 5 ns
2. OE may be delayed up to t
1. This parameter is characterized and is not 100% tested.
transition without impact on t
edge of CE without impact on t
after an address change without impact on t
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
(f = 1 MHz, T = 25°C)
(1, 2, 3, 4)
ACC
CE
ACC
- t
CE
- t
OE
CE
.
or by t
Typ
after the falling
4
8
after the address
ACC
ACC
- t
OE
.
AT29C040A-10
Min
(1)
0
0
0
3. t
4. This parameter is characterized and is not 100% tested.
Max
12
Max
100
100
6
40
25
(C
DF
L
is specified from OE or CE whichever occurs first
= 5 pF).
AT29C040A-12
Min
0
0
0
Output Test Load
Max
120
120
50
30
Units
pF
pF
AT29C040A
AT29C040A-15
Min
0
0
0
Conditions
V
V
IN
OUT
Max
150
150
70
40
= 0V
= 0V
Units
ns
ns
ns
ns
ns
5

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