AT27LV020A-12(1997) View Datasheet(PDF) - Atmel Corporation
Part Name
Description
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AT27LV020A-12 Datasheet PDF : 9 Pages
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AT27LV020A
AC Characteristics for Read Operation (VCC = 3.0V to 3.6V and 4.5V to 5.5V)
AT27LV020A
-90
-12
-15
Symbol
tACC (3)
tCE (2)
tOE (2, 3)
tDF (4, 5)
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
OE or CE High to Output Float,
whichever occurred first
Condition
Min
Max
Min
Max
Min
Max
CE = OE = VIL
90
OE = VIL
90
CE = VIL
50
40
120
150
120
150
50
60
40
50
tOH
Output Hold from Address, CE or OE,
whichever occurred first
0
0
0
AC Waveforms for Read Operation (1)
Units
ns
ns
ns
ns
ns
Notes:
1. Timing measurement references are 0.8V and 2.0V.
Input AC drive levels are 0.45V and 2.4V, unless oth-
erwise specififed.
2. OE may be delayed up to tCE - tOE after the falling
edge of CE without impact on tCE.
3. OE may be delayed up to tACC - tOE after the address
is valid without impact on tACC.
4. This parameter is only sampled and is not 100%
tested.
5. Output float is defined as the point when data is no
longer driven.
5
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