Ac read characteristics, Ac read waveforms (1)(2)(3)(4), Input test waveform and measurement level – Rainbow Electronics AT49F001NT User Manual
Page 7: Output load test, Pin capacitance, Ac read waveforms
AT49F001(N)(T)
7
Notes:
1.
CE may be delayed up to t
ACC
- t
CE
after the address transition without impact on t
ACC
.
2.
OE may be delayed up to t
CE
- t
OE
after the falling edge of CE without impact on t
CE
or by t
ACC
- t
OE
after an address change
without impact on t
ACC
.
3.
t
DF
is specified from OE or CE whichever occurs first (CL = 5 pF).
4.
This parameter is characterized and is not 100% tested.
Input Test Waveform and
Measurement Level
t
R
, t
F
< 5 ns
Output Load Test
Note:
1. This parameter is characterized and is not 100% tested.
AC Read Characteristics
Symbol
Parameter
AT49F001(N)(T)-50
AT49F001(N)(T)-70
AT49F001(N)(T)-90
AT49F001(N)(T)-12
Units
Min
Max
Min
Max
Min
Max
Min
Max
t
ACC
Address to Output Delay
50
70
90
120
ns
t
CE
CE to Output Delay
50
70
90
120
ns
t
OE to Output Delay
0
30
0
35
0
40
0
50
ns
t
DF
CE or OE to Output Float
0
25
0
25
0
25
0
30
ns
t
OH
Output Hold from OE, CE
or Address, whichever
occurred first
0
0
0
0
ns
ADDRESS
OUTPUT
HIGH Z
OUTPUT
OE
CE
t
ACC
t
OE
t
DF
t
OH
t
CE
VALID
ADDRESS VALID
5.0V
1.8K
100 pF
30 pF
1.3K
5.0V
1.8K
OUTPUT
PIN
1.3K
OUTPUT
PIN
55 ns
70/90/120 ns
Pin Capacitance
f = 1 MHz, T = 25°C
Symbol
Typ
Max
Units
Conditions
C
IN
4
6
pF
V
IN
= 0V
C
OUT
8
12
pF
V
OUT
= 0V