X93154 Datasheet, PDF (2/9 Pages) Intersil Corporation – Digitally Controlled Potentiometer

X93154
Ordering Information
PART NUMBER
X93154UM8I-3*
PART MARKING V_CC LIMITS (V)
AGK
3 ±10%
R_TOTAL (kΩ)
50
TEMP RANGE (°C)
PACKAGE
-40 to 85
8 Ld MSOP
X93154UM8IZ-3* (Note) AIW
-40 to 85
8 Ld MSOP (Pb-free)
X93154UU8IZ-3* (Note) AKH
-40 to 85
8 Ld TDFN (Pb-free)
*Add "T1" suffix for tape and reel.
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.
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_L
V_CC
V_SS
5-Bit
Nonvolatile
Memory
Store and
Control
Recall
Circuitry
29
28
One
of
Thirty
Two
Decoder
2
1
0
Transfer
Gates
Resistor
Array
R_L
Detailed
Pin Descriptions
MSOP, TDFN
1
2
3
4
5
6
7
8
SYMBOL
BRIEF DESCRIPTION
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.
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.
R_H
R_H. The R_H and R_L pins of the X93154 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.
V_SS Ground.
NC
No Connection. (or can be connected to any voltage between V_SS and V_CC.)
R_L
R_L. The R_H and R_L pins of the X93154 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.
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 X93154 will be placed in the low power standby mode until the device is selected once again.
V_CC Supply Voltage.
2
FN8180.2
October 5, 2005