AT49BV020 Просмотр технического описания (PDF) - Atmel Corporation
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AT49BV020 Datasheet PDF : 10 Pages
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AT49BV020
AC Read Characteristics
Symbol
tACC
tCE(1)
tOE(2)
tDF(3)(4)
tOH
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
CE or OE to Output Float
Output Hold from OE, CE or Address,
whichever occurred first
AC Read Waveforms(1)(2)(3)(4)
ADDRESS
-70
Min Max
70
70
0
35
0
25
AT49BV/LV020
-90
Min Max
90
90
0
40
0
25
-12
Min Max
120
120
0
50
0
30
0
0
0
Units
ns
ns
ns
ns
ns
ADDRESS VALID
CE
OE
OUTPUT
tCE
tOE
tACC
tDF
tOH
HIGH Z OUTPUT VALID
Notes: 1. CE may be delayed up to tACC - tCE after the address transition without impact on tACC.
2. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE or by tACC - tOE after an address change
without impact on tACC.
3. tDF is specified from OE or CE whichever occurs first (CL = 5pF).
4. This parameter is characterized and is not 100% tested.
Output Test Load
Input Test Waveforms and Measurement Level
3.0V
AC
2.4V
DRIVING
LEVELS 0.4V
tR, tF < 5 ns
1.5V
AC
MEASUREMENT
LEVEL
1.8K
1.3K
OUTPUT
PIN
100 pF
Pin Capacitance (f = 1 MHz, T = 25°C)(1)
Typ
Max
CIN
COUT
Note:
4
6
8
12
1. This parameter is characterized and is not 100% tested.
Units
pF
pF
Conditions
VIN = 0V
VOUT = 0V
5
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