EM564081 Просмотр технического описания (PDF) - Etron Technology
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EM564081 Datasheet PDF : 12 Pages
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EtronTech
EM564081
AC Characteristics and Operating Conditions (Ta = -40°C to 85°C, VDD = 2.3V to 3.6V)
Read Cycle
Symbol
Parameter
EM564081
-85
-70
Unit
Min Max Min Max
tRC
tAA
tCO1
tCO2
tOE
tLZ
tOLZ
tHZ
tOHZ
tOH
Read cycle time
Address access time
Chip Enable (CE1#) Access Time
Chip Enable (CE2) Access Time
Output enable access time
Chip Enable Low to Output in Low-Z
Output enable Low to Output in Low-Z
Chip Enable High to Output in High-Z
Output Enable High to Output in High-Z
Output Data Hold Time
85 − 70 −
− 85 − 70
− 85 − 70
− 85 − 70
− 45 − 35
ns
10 − 10 −
3−3−
− 35 − 25
− 35 − 25
10 − 10 −
Write Cycle
Symbol
Parameter
EM564081
-85
-70
Unit
Min Max Min Max
tWC
tWP
tCW
tAS
tWR
tWHZ
tOW
tDS
tDH
Write cycle time
Write pulse width
Chip Enable to end of write
Address setup time
Write Recovery time
WE# Low to Output in High-Z
WE# High to Output in Low-Z
Data Setup Time
Data Hold Time
85 − 70 −
55 − 55 −
70 − 60 −
0−0−
0 − 0 − ns
− 35 − 30
5−5−
35 − 30 −
0−0−
AC Test Condition
• Output load: 50pF + one TTL gate
• Input pulse level: 0.4V, 2.4V
• Timing measurements: 0.5 x VDD
• tR, tF: 5ns
Preliminary
5
Rev 0.7
January 2001
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