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