Rainbow Electronics AT49F512 - Manual (Page 5)

AT49F512
5
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.
Input Test Waveforms and
Measurement Level
t
R
, t
F
< 5 ns
Output Test Load
Note: 1. This parameter is characterized and is not 100% tested.
AC Read Characteristics
Symbol Parameter
AT49F512-50 AT49F512-70 AT49F512-90
Units Min Max Min Max Min Max
t
ACC
Address to Output Delay 50 70 90 ns
t
CE
(1) CE to Output Delay 50 70 90 ns
t
OE
(2) OE to Output Delay 30 35 0 40 ns
t
DF
(3)(4) CE or OE to Output Float 0 25 0 25 0 25 ns
t
OH
Output Hold from OE, CE or
Address, whichever occurred first
0 0 0 ns
Pin Capacitance
f = 1 MHz, T= 25
°
C (1)
Symbol Typ Max Units Conditions
C
IN
4 6 pF V
IN
= 0V
C
OUT
8 12 pF V
OUT
= 0V