X9421 Xicor, X9421 Datasheet - Page 13

• Manufacturer Part Number: X9421
• Description: Single Digitally Controlled (XDCP) Potentiometer
• Manufacturer: Xicor

X9421
D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.)
ENDURANCE AND DATA RETENTION
CAPACITANCE
POWER-UP TIMING
POWER UP REQUIREMENTS (Power up sequencing can affect correct recall of the wiper registers)
The preferred power-on sequence is as follows: First V
Voltage should not be applied to the potentiometer pins before V
should be met, and any glitches or slope changes in the V
should not reverse polarity by more than 0.5V. Recall of wiper position will not be complete until V
final value.
Notes: (5) This parameter is periodically sampled and not 100% tested.
A.C. TEST CONDITIONS
REV 1.1.6 8/1/02
Symbol
I nput pulse levels
Input rise and fall times
Input and output timing level
I
I
Symbol
t
Symbol
V
C
V
CC1
CC2
I
I
V
R
I
SB
LO
C
OL
LI
IH
OUT
V
IL
IN
CC
(5)
(5)
(5)
Minimum Endurance
Data Retention
V
(Active)
V
(Non-volatile Write)
V
Input Leakage Current
Output Leakage Current
Input HIGH Voltage
Input LOW Voltage
Output LOW Voltage
Parameter
CC
CC
CC
Supply Current
Supply Current
Current (Standby)
Input Capacitance (A0, SI, and SCK)
Parameter
Output Capacitance (SO)
V
CC
Power up Ramp
Parameter
V
0.9
10ns
V
CC
CC
Test
x 0.1 to V
x 0.5
V
CC
Min.
–0.5
x 0.7
CC
www.xicor.com
100,000
x
Min.
100
Typ.
CC
Limits
CC
V
V
and then the potentiometer pins, R
line should be held to <100mV if possible. Also, V
CC
CC
Max.
400
0.4
10
10
1
1
Max.
Max.
+ 0.5
x 0.1
0.2
CC
8
6
is applied. The V
Units
Data Changes per Bit per Register
mA
µA
V
V
V
A
A
A
Characteristics subject to change without notice.
Units
Max.
50
pF
pF
f
Other Inputs = V
f
Other Inputs = V
SCK = SI = V
V
V
I
SCK
SCK
OL
IN
OUT
= 3mA
CC
= V
Units
Years
= 2MHz, SO = Open,
= 2MHz, SO = Open,
Test Conditions
= V
SS
ramp rate specification
SS
to V
Test Conditions
to V
SS
V
CC
H
V
, Addr. = V
OUT
V/msec
SS
SS
, R
CC
CC
IN
Units
= 0V
L
reaches its
= 0V
, and R
13 of 21
SS
CC
W
.