X9221 Xicor, X9221 Datasheet - Page 9

• Manufacturer Part Number: X9221
• Description: Dual E2POT Nonvolatile Digital Potentiometer
• Manufacturer: Xicor

X9221
ENDURANCE AND DATA RETENTION
CAPACITANCE
POWER-UP TIMING
SYMBOL TABLE
A.C. CONDITIONS OF TEST
Notes: (5) This parameter is periodically sampled and not 100%
Input Pulse Levels
Symbol
Symbol
t
t
Input Rise and
Fall Times
Input and Output
Timing Levels
C
PUR (6)
PUW
C
I/O
(6) t
IN (5)
WAVEFORM
(5)
(6)
tested.
VCC is stable until the specified operation can be
initiated. These parameters are periodically sampled
and not 100% tested.
PUR
Minimum Endurance
Data Retention
and t
Parameter
PUW
Input/Output Capacitance (SDA)
Input Capacitance (A0, A1, A2, A3 and SCL)
Power-up to Initiation of Read Operation
Power-up to Initiation of Write Operation
are the delays required from the time
INPUTS
Must be
steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
N/A
V
CC
x 0.1 to V
V
Parameter
Parameter
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
CC
10ns
x 0.5
CC
3079 PGM T09
x 0.9
100,000
Min.
100
9
EQUIVALENT A.C. TEST CIRCUIT
Guidelines for Calculating
Typical Values of Bus Pull-Up Resistors
SDA OUTPUT
Max.
120
100
40
20
80
60
8
6
0
Data Changes per Register
0
Max.
MIN.
RESISTANCE
BUS CAPACITANCE (pF)
1
5
20
R MIN =
R MAX =
MAX.
RESISTANCE
Units
40
pF
pF
5V
Years
Units
V CC MAX
I OL MIN
C BUS
1533
100pF
60
t R
80 100 120
Test Conditions
=1.8K
V
V
I/O
IN
Units
3079 ILL F02.1
ms
ms
3079 ILL F17
= 0V
= 0V
3079 PGM T06.2
3079 PGM T07
3079 PGM T08