X93156 INTERSIL [Intersil Corporation], X93156 Datasheet - Page 5

• Manufacturer Part Number: X93156
• Description: Digitally Controlled Potentiometer
• Manufacturer: INTERSIL [Intersil Corporation]

AC Electrical Specifications
A.C. Timing
Power Up and Down Requirements
There are no restrictions on the power-up or power-down
conditions of V
potentiometer pins provided that V
positive than or equal to V
V
Pin Descriptions
R
The R
terminals of a mechanical potentiometer. The minimum
voltage is V
R
relation to wiper movement direction selected by the U/D
input.
R
The Rw pin of the X93156 is the wiper terminal of the
potentiometer which is equivalent to the movable terminal of
a mechanical potentiometer
CC
H
SYMBOL
H
w
(Note 7)
(Note 7)
t
and R
R
t
and R
t
t
INC
U/D
R
t
CPH
CYC
ramp rate spec is always in effect.
CS
R
WR
V
, t
H
W
CC
F
and R
L
L
references the relative position of the terminal in
SS
CS Deselect time (STORE)
INC cycle time
INC input rise and fall time
V CC power-up rate
Store cycle
t
L
CI
CC
and the maximum is V
pins of the X93156 are equivalent to the fixed
t
and the voltages applied to the
IW
H
t
IL
and V
t
ID
5
t
CYC
PARAMETER
L
CC
, i.e., V
Over recommended operating conditions unless otherwise specified. (Continued)
CC
is always more
t
IH
. The terminology of
CC
≥ V
t
DI
H,
V
t
L
IC
. The
MI
(Note 4)
X93156
t
Up/Down (U/D)
The U/D input controls the direction of the wiper movement
and whether the counter is incremented or decremented.
Increment (INC)
The INC input is negative-edge triggered. Toggling INC will
move the wiper and either increment or decrement the
counter in the direction indicated by the logic level on the
U/D input.
Chip Select (CS)
The device is selected when the CS input is LOW. The
current counter value is stored in nonvolatile memory when
CS is returned HIGH while the INC input is also HIGH. After
the store operation is complete the X93156 will be placed in
the low power standby mode until the device is selected
once again.
CPHS
MIN
0.2
10
2
t
F
90%
TYP
5
10%
90%
10,000
t
R
MAX
500
10
t
CPHNS
September 16, 2005
UNIT
V/ms
ms
ms
µs
µs
FN8182.2