28LV64A Ver la hoja de datos (PDF) - Microchip Technology
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28LV64A Datasheet PDF : 8 Pages
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28LV64A
TABLE 1-3: READ OPERATION AC CHARACTERISTICS
AC Testing Waveform:
Output Load:
Input Rise and Fall Times:
Ambient Temperature:
VIH = 2.0V; VIL = 0.6V; VOH = VOL = VCC/2
1 TTL Load + 100 pF
20 ns
Commercial (C): Tamb = 0°C to +70°C
Industrial (I) : Tamb = -40°C to +85°C
Parameter
Sym
28LV64-30
Min
Max
Units
Conditions
Address to Output Delay
tACC
—
300
ns
OE = CE = VIL
CE to Output Delay
tCE
—
300
ns
OE = VIL
OE to Output Delay
tOE
—
150
ns
CE = VIL
CE or OE High to Output Float
tOFF
0
60
ns
(Note 1)
Output Hold from Address, CE or
tOH
0
—
ns
(Note 1)
OE, whichever occurs first.
Endurance
—
10M
—
cycles 25°C, Vcc = 5.0V,
Block Mode (Note 2)
Note 1: Not 100% tested.
2: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific
application, please consult the Total Endurance Model which can be obtained on our BBS or website.
FIGURE 1-1: READ WAVEFORMS
VIH
Address
VIL
Address Valid
VIH
CE
VIL
VIH
OE
VIL
Data
VOH
VOL
VIH
WE
VIL
High Z
tCE(2)
tOE(2)
tACC
tOFF(1,3)
tOH
Valid Output
High Z
Notes: (1) tOFF is specified for OE or CE, whichever occurs first
(2) OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE
(3) This parameter is sampled and is not 100% tested
© 1996 Microchip Technology Inc.
Preliminary
DS21113B-page 3
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