X9258 Xicor, X9258 Datasheet - Page 13

• Manufacturer Part Number: X9258
• Description: Quad Digital Controlled Potentiometers (XDCP)
• Manufacturer: Xicor

X9258
D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.)
Notes: (1) Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used
ENDURANCE AND DATA RETENTION
CAPACITANCE
POWER-UP TIMING
POWER UP AND DOWN REQUIREMENT
The are no restrictions on the sequencing of the bias supplies V
reach their final values within 1msec of each other. At all times, the voltages on the potentiometer pins must be less
than V+ and more than V-. The recall of the wiper position from nonvolatile memory is not in effect until all supplies
reach their final value. The V
Notes: (5) This parameter is periodically sampled and not 100% tested.
REV 1.1.7 2/4/03
Symbol
Symbol
I
I
V
V
CC1
CC2
I
I
Symbol
t
V
I
C
R
SB
LO
t
C
LI
OL
t
IH
PUW
IL
PUR
I/O
V
IN
(2) Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potenti-
(3) MI = RTOT/255 or (V
(4) Max. = all four arrays cascaded together, Typical = individual array resolutions.
(6) t
(7) Sample tested only.
CC
(5)
(5)
(6)
(6)
as a potentiometer.
ometer. It is a measure of the error in step size.
Minimum endurance
instruction can be issued. These parameters are periodically sampled and not 100% tested.
(7)
PUR
V
volatile Write)
V
wiper, write, read)
V
Input leakage current
Output leakage current
Input HIGH voltage
Input LOW voltage
Output LOW voltage
Data retention
CC
CC
CC
Parameter
and t
Input/output capacitance (SDA)
Input capacitance (A0, A1, A2, A3, and SCL)
supply current (Non-
supply current (move
current (standby)
Power-up to initiation of read operation
Power-up to initiation of write operation
V
PUW
CC
Parameter
Power up ramp
are the delays required from the time the third (last) power supply (V
H
/R
CC
H
—V
ramp rate spec is always in effect.
L
Parameter
/R
Test
L
)/255, single pot
V
CC
Min.
–0.5
100,000
x 0.7
Min.
100
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Typ.
1
Limits
V
V
CC
CC
Max.
100
0.4
10
10
5
+ 0.1
x 0.3
CC
Max.
Min.
0.2
8
6
, V+, and V- provided that all three supplies
Data changes per bit per register
Unit
mA
µA
µA
µA
µA
V
V
V
CC
Characteristics subject to change without notice.
, V+ or V-) is stable until the specific
f
Other Inputs = V
f
Other Inputs = V
SCL = SDA = V
V
V
I
SCL
SCL
OL
IN
OUT
Max.
years
Unit
Unit
= 3mA
= V
50
pF
pF
1
5
= 400kHz, SDA = Open,
= 400kHz, SDA = Open,
= V
SS
Test Conditions
SS
to V
to V
CC
CC
Test Conditions
SS
SS
CC
, Addr. = V
V
V
V/msec
I/O
IN
Unit
ms
ms
= 0V
= 0V
SS
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