AT28C64X Просмотр технического описания (PDF) - Atmel Corporation
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AT28C64X Datasheet PDF : 12 Pages
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AT28C64(X)
AC Read Characteristics
Symbol Parameter
tACC
tCE(1)
tOE(2)
tDF(3)(4)
tOH
Address to Output Delay
CE to Output Delay
OE to Output Delay
CE or OE High to Output Float
Output Hold from OE, CE or
Address, whichever occurred first
AC Read Waveforms(1)(2)(3)(4)
AT28C64-12
Min Max
120
120
10
60
0
45
0
AT28C64-15
Min Max
150
150
10
70
0
50
0
AT28C64-20
Min Max
200
200
10
80
0
55
0
AT28C64-25
Min Max
250
250
10
100
0
60
0
Units
ns
ns
ns
ns
ns
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 = 5 pF).
4. This parameter is characterized and is not 100% tested.
Input Test Waveforms and
Measurement Level
Output Test Load
tR, tF < 20 ns
Pin Capacitance
f = 1 MHz, T = 25°C(1)
Symbol
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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