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X28HC64 Datasheet, PDF (11/24 Pages) Xicor Inc. – 5 Volt, Byte Alterable E2PROM
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X28HC64
ENDURANCE AND DATA RETENTION
Parameter
Minimum Endurance
Data Retention
Min.
100,000
100
Max.
POWER-UP TIMING
Symbol
tPUR(3)
tPUW(3)
Parameter
Power-up to Read Operation
Power-up to Write Operation
Typ. (1)
100
5
CAPACITANCE TA = +25°C, f = 1MHz, VCC = 5V
Symbol
Parameter
CI/O(3)
CIN(3)
Input/Output Capacitance
Input Capacitance
Max.
10
6
Units
pF
pF
A.C. CONDITIONS OF TEST
Input Pulse Levels
0V to 3V
Input Rise and
Fall Times
Input and Output
Timing Levels
5ns
1.5V
3857 PGM T08.1
MODE SELECTION
CE OE WE
L
L
H
L
H
L
H
X
X
X
L
X
X
X
H
Mode
Read
Write
Standby and
Write Inhibit
Write Inhibit
Write Inhibit
Note: (3) This parameter is periodically sampled and not 100% tested.
EQUIVALENT A.C. LOAD CIRCUITS
SYMBOL TABLE
Unit
Cycles
Years
3857 PGM T05.3
Units
µs
ms
3857 PGM T06
Test Conditions
VI/O = 0V
VIN = 0V
3857 PGM T07.1
I/O
DOUT
DIN
High Z
—
—
Power
Active
Active
Standby
—
—
3857 PGM T09
5V
OUTPUT
1.92KΩ
1.37KΩ
30pF
3857 FHD F22.3
WAVEFORM INPUTS
OUTPUTS
Must be
steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
N/A
Will be
steady
Will change
from LOW
to HIGH
Will change
from HIGH
to LOW
Changing:
State Not
Known
Center Line
is High
Impedance
11
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