X9241A
A.C. CONDITIONS OF TEST
Input pulse levels
Input rise and fall times
Input and output timing levels
V
CC
x 0.1 to V
CC
x 0.9
10ns
V
CC
x 0.5
Resistance (KΩ)
Guidelines for Calculating
Typical Values of Bus Pull-Up Resistors
120
100
80
60
40
20
0
0
20
40
60
80 100 120
Bus Capacitance (pF)
Min.
Resistance
V
R
MIN
=
CC MAX
=1.8KΩ
I
OL MIN
t
R
MAX
=
R
C
BUS
Max.
Resistance
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
DCP Wiper Current De-rating Curve
Maximum DCP Wiper Current
7
6
5
4
3
2
1
0
0
10
20
30
40 50
60 70
Ambient Temperature (°C)
80
90
Equivalent A.C. Test Circuit
5V
1533Ω
SDA Output
100pF
Circuit #3 SPICE Macro Model
Macro Model
R
H
R
TOTAL
R
L
C
H
C
W
10pF
25pF
R
W
C
L
10pF
REV 1.1.13 12/09/02
www.xicor.com
Characteristics subject to change without notice.
12 of 18
XICOR [ XICOR INC. ]
