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X28C512, X28C513
AC Electrical Specifications
Over the recommended operating conditions, unless otherwise specified.
X28C512-90
X28C513-90
X28C512-12
X28C513-12
X28C512-15
X28C513-15
X28C512-20
X28C513-20
X28C512-25
X28C513-25
SYMBOL
PARAMETER
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
READ CYCLE LIMITS
t RC
t CE
t AA
t OE
t LZ
Read cycle time
Chip enable access time
Address access time
Output enable access time
CE LOW to active output
90
0
90
90
40
120
0
120
120
50
150
0
150
150
50
200
0
200
200
50
250
0
250
250
50
ns
ns
ns
ns
ns
(Note 3)
t OLZ
OE LOW to active output
0
0
0
0
0
ns
(Note 3)
t HZ
CE HIGH to high Z output
40
50
50
50
50
ns
(Note 3)
t OHZ
OE HIGH to high Z output
40
50
50
50
50
ns
(Note 3)
t OH
Output hold from address change
0
0
0
0
0
ns
Read Cycle
t RC
Address
t CE
CE
t OE
OE
V IH
WE
t OLZ
t OHZ
t LZ
t OH
t HZ
Data I/O
HIGH Z
Data Valid
Data Valid
t AA
NOTE:
3. t LZ min., t HZ , t OLZ min., and t OHZ are periodically sampled and not 100% tested. t HZ max. and t OHZ max. are measured, with C L = 5pF from the
point when CE or OE return HIGH (whichever occurs first) to the time when the outputs are no longer driven.
13
FN8106.2
June 7, 2006
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