X28HC256D-90 INTERSIL [Intersil Corporation], X28HC256D-90 Datasheet - Page 12

• Manufacturer Part Number: X28HC256D-90
• Description: 5V, Byte Alterable EEPROM
• Manufacturer: INTERSIL [Intersil Corporation]

AC Electrical Specifications
Read Cycle Time
Chip Enable Access Time
Address Access Time
Output Enable Access Time
CE LOW to Active Output
OE LOW to Active Output
CE HIGH to High Z Output
OE HIGH to High Z Output
Output Hold from Address Change
Read Cycle
NOTES:
4. t
5. For faster 256k products, refer to X28VC256 product line.
ADDRESS
DATA I/O
CE, OE return HIGH (whichever occurs first) to the time when the outputs are no longer driven.
LZ
min., t
WE
CE
OE
HZ
PARAMETER
, t
OLZ
V
HIGH Z
IH
min. and t
OHZ
12
are periodically sampled and not 100% tested, t
Over Recommended Operating Conditions, Unless Otherwise Specified.
t
LZ
t
t
t
t
t
t
OHZ
t
t
OLZ
OLZ
RC
t
CE
AA
HZ
LZ
SYMBOL
CE
(Note 4)
(Note 5)
(Note 5)
(Note 4)
(Note 5)
(Note 4)
(Note 4)
t
t
t
OH
OE
OE
t
RC
X28HC256-70
MIN
70
0
0
0
X28HC256
DATA VALID
MAX
70
70
35
35
35
X28HC256-90
MIN
90
0
0
0
HZ
and t
t
t
MAX
OH
AA
90
90
40
40
40
OHZ
are measured with C
X28HC256-12
MIN
120
0
0
0
MAX
120
120
50
50
50
DATA VALID
L
= 5pF, from the point when
X28HC256-15
MIN
150
0
0
0
t
HZ
MAX
150
150
50
50
50
t
OHZ
May 7, 2007
FN8108.2
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns