X93155 Potentiometer Datasheet

X93155 Datasheet, PDF, Equivalent


Part Number

X93155

Description

Digitally Controlled Potentiometer

Manufacture

Intersil

Total Page 8 Pages
Datasheet
Download X93155 Datasheet


X93155
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February 19, 2008
X93155
FN8181.2
Digitally Controlled Potentiometer
(XDCP™)
The Intersil X93155 is a digitally controlled potentiometer
(XDCP). The device consists of a resistor array, wiper
switches, a control section, and nonvolatile memory. The
wiper position is controlled by a 3-wire interface.
The potentiometer is implemented by a resistor array
composed of 31 resistive elements and a wiper switching
network. The position of the wiper element is controlled by
the CS, U/D, and INC inputs. The position of the wiper can
be stored in nonvolatile memory and then be recalled upon
during a subsequent power-up operation.
The device is connected as a two-terminal variable resistor
and can be used in a wide variety of applications including:
- Bias and Gain Control
- LCD Contrast Adjustment
Pinout
X93155
(8 LD MSOP)
TOP VIEW
INC 1
U/D 2
RH 3
VSS
4
8 VCC
7 CS
6 RL
5 NC*
Features
• Solid-state potentiometer
• Up/Down interface
• 32 wiper tap points per potentiometer
- Wiper position stored in nonvolatile memory and
recalled on power-up
• 31 resistive elements per potentiometer
- Temperature compensated
- Maximum resistance tolerance ±25%
- Terminal voltage, 0 to VCC
• Low power CMOS
- VCC = 5V ±10%
- Active current, 200µA typ.
- Standby current, 2.0µA max
• High reliability
- Endurance 200,000 data changes per bit
- Register data retention, 100 years
• RTOTAL value = 50k
• Packages
- 8 Ld MSOP
• Pb-free available (RoHS compliant)
*NC can be left unconnected, or connected to any voltage between VSS
and VCC.
Ordering Information
PART NUMBER
X93155UM8I*
PART MARKING VCC LIMITS (V) RTOTAL (k)
AGM
5 ±10%
50
TEMP
RANGE (°C)
-40 to +85
PACKAGE
8 Ld MSOP
PKG DWG. #
M8.118
X93155UM8IZ* (Note)
DCH
-40 to +85
8 Ld MSOP
(Pb-free)
M8.118
*Add "T1" suffix for tape and reel. Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100%
matte tin plate PLUS ANNEAL - e3 termination finish, which is 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.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

X93155
Block Diagram
VCC (SUPPLY VOLTAGE)
30k
UP/DOWN
(U/D)
INCREMENT
(INC)
DEVICE SELECT
(CS)
CONTROL
AND
MEMORY
VSS (Ground)
GENERAL
X93155
U/D
INC
CS
RH
RL
VCC
VSS
5-BIT
UP/DOWN
COUNTER
5-BIT
NONVOLATILE
MEMORY
STORE AND
CONTROL
RECALL
CIRCUITRY
31
30
29
28
ONE
OF
THIRTY
TWO
DECODER
2
1
0
TRANSFER RESISTOR
GATES
ARRAY
DETAILED
RH
RL
Pin Descriptions
MSOP 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 RH RH. The RH and RL pins of the X93155 are equivalent to the end terminals of a variable resistor.
4 VSS Ground.
5 NC No Connection (or can be connected to any voltage between VSS and VCC.)
6 RL RL. The RH and RL pins of the X93155 are equivalent to the end terminals of a variable resistor.
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 X93155
will be placed in the low power standby mode until the device is selected once again.
8
VCC
Supply Voltage.
2 FN8181.2
February 19, 2008


Features NOcTN1o-ORn88tERa8CcE®-tIOCNoMOTuEMMr R ETMSeNDEcIDLNhaEntDoaDirEcSwaDFlhOwRSeR wEue.PpNtinpLEtoAeWrrCtsDECilEM.ecSnEoI tmNGerT/NtasStc February 19, 2008 X93 155 FN8181.2 Digitally Controlled Pote ntiometer (XDCP™) The Intersil X93155 is a digitally controlled potentiomete r (XDCP). The device consists of a resi stor array, wiper switches, a control s ection, and nonvolatile memory. The wip er position is controlled by a 3-wire i nterface. The potentiometer is implemen ted by a resistor array composed of 31 resistive elements and a wiper switchin g network. The position of the wiper el ement is controlled by the CS, U/D, and INC inputs. The position of the wiper can be stored in nonvolatile memory and then be recalled upon during a subsequ ent power-up operation. The device is c onnected as a two-terminal variable res istor and can be used in a wide variety of applications including: - Bias and Gain Control - LCD Contrast Adjustment Pinout X93155 (8 LD MSOP) TOP VIEW INC 1 U/D 2 RH 3 VSS .
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