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AT49BV020 Datasheet(PDF) 5 Page - ATMEL Corporation

Part # AT49BV020
Description  2-Megabit 256K x 8 Single 2.7-volt Battery-Voltage Flash Memory
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT49BV020 Datasheet(HTML) 5 Page - ATMEL Corporation

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AT49BV020
5
AC Read Waveforms(1)(2)(3)(4)
Notes:
1.
CE may be delayed up to t
ACC - tCE after the address transition without impact on tACC.
2.
OE may be delayed up to t
CE - tOE after the falling edge of CE without impact on tCE or by tACC - tOE after an address change
without impact on t
ACC.
3.
t
DF is specified from OE or CE whichever occurs first (CL = 5pF).
4.
This parameter is characterized and is not 100% tested.
Note:
1. This parameter is characterized and is not 100% tested.
AC Read Characteristics
Symbol
Parameter
AT49BV/LV020
Units
-70
-90
-12
MinMax
MinMax
MinMax
t
ACC
Address to Output Delay
70
90
120
ns
t
CE
(1)
CE to Output Delay
70
90
120
ns
t
OE
(2)
OE to Output Delay
0
35
0
40
0
50
ns
t
DF
(3)(4)
CE or OE to Output Float
0
25
0
25
0
30
ns
t
OH
Output Hold from OE, CE or Address,
whichever occurred first
000
ns
ADDRESS
CE
OUTPUT
OE
OUTPUT VALID
tACC
ADDRESS VALID
HIGH Z
tDF
tCE
tOH
tOE
Pin Capacitance (f = 1 MHz, T = 25
°C)(1)
Typ
Max
Units
Conditions
C
IN
46
pF
V
IN = 0V
C
OUT
812
pF
V
OUT = 0V
Output Test Load
100 pF
1.3K
1.8K
3.0V
OUTPUT
PIN
Input Test Waveforms and Measurement Level
AC
DRIVING
LEVELS
AC
MEASUREMENT
LEVEL
0.4V
1.5V
2.4V
tR, tF < 5 ns


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