X28HC256 Datasheet, PDF (11/15 Pages) Xicor Inc. – 5 Volt, Byte Alterable E2PROM

X28HC256
CAPACITANCE T_A = +25°C, f = 1MHz, V_CC = 5V
Symbol
C_I/O(9)
C_IN(9)
Test
Input/output capacitance
Input capacitance
ENDURANCE AND DATA RETENTION
Parameter
Endurance
Data retention
Max.
10
6
Min.
1,000,000
100
Unit
pF
pF
Max.
Conditions
V_I/O = 0V
V_IN = 0V
Unit
Cycles
Years
A.C. CONDITIONS OF TEST
Input pulse levels
Input rise and fall times
Input and output timing levels
0V to 3V
5ns
1.5V
MODE SELECTION
CE OE WE
Mode
L
L
H
Read
L
H
L
Write
H X X Standby and
write inhibit
X
L
X Write inhibit
X X H Write inhibit
I/O
D_OUT
D_IN
High Z
Power
active
active
standby
—
—
—
—
SYMBOL TABLE
WAVEFORM
INPUTS
Must be
steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
N/A
OUTPUTS
Will be
steady
Will change
from LOW
to HIGH
Will change
from HIGH
to LOW
Changing:
State Not
Known
Center Line
is High
Impedance
EQUIVALENT A.C. LOAD CIRCUIT
5V
OUTPUT
1.92kΩ
1.37kΩ
30pF
11
FN8108.1
May 17, 2006