X93156 Datasheet, PDF (2/8 Pages) Intersil Corporation – Digitally Controlled Potentiometer

X93156
Ordering Information
PART NUMBER
X93156WM8I
PART MARKING
R_TOTAL (kΩ)
12.5
TEMP RANGE (°C)
PACKAGE
-40 to +85
8 Ld MSOP
PKG. DWG. #
M8.118
X93156WM8IZ (See Note)
-40 to +85
8 Ld MSOP (Pb-free)
M8.118
X93156WM8I-2.7*
(AGR)
-40 to +85
8 Ld MSOP
M8.118
X93156WM8IZ-2.7* (See Note)
-40 to +85
8 Ld MSOP (Pb-free)
M8.118
X93156UM8I-2.7*
(AGP)
50
-40 to +85
8 Ld MSOP
M8.118
X93156UM8IZ-2.7* (See Note)
-40 to +85
8 Ld MSOP (Pb-free)
M8.118
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
*Add “T1” suffix for tape and reel.
Block Diagram
V_CC (Supply Voltage)
U/D
5-Bit
31
R_H
INC
Up/Down
30K
CS
Counter
30
Up/Down
(U/D)
Increment
(INC)
Device Select
(CS)
Control
and
Memory
V_SS (Ground)
General
R_H
R_W
R_L
V_CC
V_SS
5-Bit
Nonvolatile
Memory
Store and
Control
Recall
Circuitry
29
28
One
of
Thirty
Two
Decoder
2
1
0
R_W
Transfer
Resistor
Gates
Array
R_L
Pin Descriptions
Detailed
MSOP, TDFN SYMBOL
BRIEF DESCRIPTION
1
INC 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.
2
U/D Up/Down (U/D). The U/D input controls the direction of the wiper movement and whether the counter is incremented
or decremented.
3
R_H R_H. The R_H and R_L pins of the X93156 are equivalent to the fixed terminals of a mechanical potentiometer. The
minimum voltage is VSS and the maximum is VCC. The terminology of R_H and R_L references the relative position of
the terminal in relation to wiper movement direction selected by the U/D input.
4
V_SS Ground.
5
Rw R_W. The Rw pin of the X93156 is the wiper terminal of the potentiometer which is equivalent to the movable terminal
of a mechanical potentiometer.
6
R_L R_L. The R_H and R_L pins of the X93156 are equivalent to the fixed terminals of a mechanical potentiometer. The
minimum voltage is VSS and the maximum is VCC. The terminology of R_H and R_L references the relative position of
the terminal in relation to wiper movement direction selected by the U/D input.
7
CS 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.
8
V_CC Supply Voltage.
2
FN8182.2
September 16, 2005