X93155 INTERSIL [Intersil Corporation], X93155 Datasheet - Page 2

• Manufacturer Part Number: X93155
• Description: Digitally Controlled Potentiometer (XDCP)
• Manufacturer: INTERSIL [Intersil Corporation]

Block Diagram
Pin Descriptions
MSOP
Increment
Device Select
Up/Down
1
2
3
4
5
6
7
8
(INC)
(U/D)
(CS)
SYMBOL
V
V
INC
U/D
NC
R
CS
R
V
SS
CC
H
CC
L
30kΩ
(Supply Voltage)
V
General
Memory
Control
SS
and
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.
Up/Down (U/D). The U/D input controls the direction of the wiper movement and whether the counter is incremented or
decremented.
R
Ground.
No Connection. (or can be connected to any voltage between V
R
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 X93155
will be placed in the low power standby mode until the device is selected once again.
Supply Voltage.
(Ground)
H
L
. The R
. The R
2
H
H
and R
and R
L
L
pins of the X93155 are equivalent to the end terminals of a variable resistor.
R
pins of the X93155 are equivalent to the end terminals of a variable resistor.
R
H
L
V
V
CC
SS
U/D
INC
CS
X93155
Nonvolatile
Store and
Up/Down
Counter
Circuitry
Memory
Control
Recall
5-Bit
5-Bit
BRIEF DESCRIPTION
Decoder
Thirty
One
Two
SS
of
and V
31
30
29
28
Detailed
2
1
0
CC
.)
Transfer
Gates
Resistor
Array
September 26, 2005
R
R
L
H
FN8181.1