Pin capacitance, Ac read characteristics, Ac read waveforms(1)(2)(3)(4) – Rainbow Electronics AT49F8192AT User Manual
Page 8: Input test waveforms and measurement level, Output test load, Ac read waveforms
8
AT49F008A(T)/8192A(T)
1199F–04/01
AC Read Waveforms
(1)(2)(3)(4)
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 (C
L
= 5 pF).
4.
This parameter is characterized and is not 100% tested.
AC Read Characteristics
Symbol
Parameter
AT49F008A/8192A(T)-90
Units
Min
Max
t
ACC
Address to
Output Delay
90
ns
t
CE
(1)
CE to Output Delay
90
ns
t
OE
(2)
OE to Output Delay
0
40
ns
t
DF
(3)(4)
CE or OE to Output Float
0
25
ns
t
OH
Output Hold from OE, CE or Address, whichever occurred first
0
ns
t
RO
RESET to Output Delay
800
ns
OE
RESET
CE
t
CE
t
OE
t
RO
t
ACC
t
DF
t
OH
ADDRESS
HIGH Z
OUTPUT
OUTPUT
ADDRESS VALID
VALID
Input Test Waveforms and Measurement Level
t
R
, t
F
< 5 ns
3.0V
0.0V
Output Test Load
5.0V
Note:
1. This parameter is characterized and is not 100% tested.
Pin Capacitance
f = 1 MHz, T = 25
°C
(1)
Typ
Max
Units
Conditions
C
IN
4
6
pF
V
IN
= 0V
C
OUT
8
12
pF
V
OUT
= 0V