DATASHEET
X9511
Single Push Button Controlled Potentiometer (XDCP™) Linear, 32 Taps, Push
Button Controlled, Terminal Voltage ±5V
FN8205
Rev 3.00
February 2, 2007
FEATURES
DESCRIPTION
• Push button controlled
• Low power CMOS
—Active current, 3mA max
—Standby current, 100µA typical
• 31 resistive elements
—Temperature compensated
—20% end to end resistance range
—-5V to +5V range
• 32 wiper tap points
—Wiper positioned via two push button inputs
—Slow and fast scan modes
—AUTOSTORE® option
—Manual store option
—Wiper position stored in nonvolatile memory
and recalled on power-up
• 100 year wiper position data retention
• X9511W = 10k
• Packages
—8 Ld PDIP
—8 Ld SOIC
• Pb-free plus anneal available (RoHS compliant)
The Intersil X9511 is a push button controlled potentiometer that is ideal for push button controlled resistance trimming.
The X9511 is a resistor array composed of 31 resistive
elements. Between each element and at either end
are tap points accessible to the wiper element. The
position of the wiper element is controlled by the PU
and PD inputs. The position of the wiper can be automatically stored in E2 memory and then be recalled
upon a subsequent power-on operation.
The resolution of the X9511 is equal to the maximum
resistance value divided by 31. As an example, for the
X9511W (10k) each tap point represents 323.
All Intersil nonvolatile products are designed and
tested for applications requiring extended endurance
and data retention.
ORDERING INFORMATION
PART NUMBER
PART MARKING
RTOTAL
(k)
TEMPERATURE
RANGE (°C)
10
0 to +70
8 Ld PDIP
8 Ld PDIP*** (Pb-free) MDP0031
PACKAGE
PKG. DWG. #
X9511WP
X9511WP
MDP0031
X9511WPZ (Note)
X9511WP Z
0 to +70
X9511WPI
X9511WP I
-40 to +85
8 Ld PDIP
X9511WPIZ (Note)
X9511WP Z I
-40 to +85
8 Ld PDIP*** (Pb-free) MDP0031
X9511WS**
X9511W
0 to +70
8 Ld SOIC
MDP0027
X9511WSZ*, **(Note)
X9511W Z
0 to +70
8 Ld SOIC (Pb-free)
MDP0027
X9511WSI*, **
X9511W I
-40 to +85
8 Ld SOIC
MDP0027
X9511WSIZ*, ** (Note)
X9511W Z I
-40 to +85
8 Ld SOIC (Pb-free)
MDP0027
MDP0031
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.
**Add "T2" suffix for tape and reel.
***Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder
processing applications.
FN8205 Rev 3.00
February 2, 2007
Page 1 of 9
X9511
BLOCK DIAGRAM
PU
PD
5-BIT
UP/DOWN
COUNTER
VH
31
30
29
5-BIT
EEPROM
MEMORY
ONE
OF
28
THIRTY-TWO
DECODER
TRANSFER
GATES
RESISTOR
ARRAY
2
ASE
STORE AND
RECALL
CONTROL
CIRCUITRY
1
0
VL
VW
FN8205 Rev 3.00
February 2, 2007
Page 2 of 9
X9511
PIN NAMES
PIN DESCRIPTIONS
SYMBOL
VH/RH and VL/RL
The high (VH/RH) and low (VL/RL) terminals of the
X9511 are equivalent to the fixed terminals of a mechanical potentiometer. The minimum voltage is -5V and the
maximum is +5V. It should be noted that the terminology
of VL/RL and VH/RH are in reference to the relative position of the terminal in relation to wiper movement direction selected by the PU and PD inputs, and not the
voltage potential on the terminal.
VH/RH
High Terminal
VW/RW
Wiper Terminal
VL/RL
The debounced PU input is for incrementing the wiper
position. An on-chip pull-up holds the PU input HIGH. A
switch closure to ground or a LOW logic level will, after a
debounce time, move the wiper to the next adjacent
higher tap position.
PD
The debounced PD input is for decrementing the wiper
position. An on-chip pull-up holds the PD input HIGH. A
switch closure to ground or a LOW logic level will, after a
debounce time, move the wiper to the next adjacent
lower tap position.
ASE
The debounced ASE (AUTOSTORE enable) pin can be
in one of two states:
VIL - AUTOSTORE is enabled. When VCC powers
down, an automatic store cycle takes place.
VIH - AUTOSTORE is disabled. A LOW to HIGH will initiate a manual store operation. This is for the user who
wishes to connect a push button switch to this pin. For
every valid push, the X9511 will store the current wiper
position to the EEPROM.
PIN CONFIGURATION
DIP/SOIC
PU
1
PD
2
VH
3
VSS
4
FN8205 Rev 3.00
February 2, 2007
X9511
8
VCC
7
ASE
6
VL
5
VW
Low Terminal
VSS
Ground
VCC
Supply Voltage
PU
Push Up Input
PD
Push Down Input
ASE
PU
DESCRIPTION
AUTOSTORE Enable Input
DEVICE OPERATION
There are three sections of the X9511: the input control,
counter and decode section; the EEPROM memory; and
the resistor array. The input control section operates just
like an up/down counter. The output of this counter is
decoded to turn on a single electronic switch, connecting
a point on the resistor array to the wiper output. Under the
proper conditions the contents of the counter can be
stored in EEPROM memory and retained for future use.
The resistor array is comprised of 31 individual resistors
connected in series. At either end of the array and
between each resistor is an electronic switch that transfers the potential at that point to the wiper.
The X9511 is designed to interface directly to two push
button switches for effectively moving the wiper up or
down. The PU and PD inputs increment or decrement a
5-bit counter respectively. The output of this counter is
decoded to select one of the thirty-two wiper positions
along the resistive array. The wiper increment input, PU
and the wiper decrement input, PD are both connected
to an internal pull-up so that they normally remain HIGH.
When pulled LOW by an external push button switch or
a logic LOW level input, the wiper will be switched to the
next adjacent tap position.
Internal debounce circuitry prevents inadvertent switching of the wiper position if PU or PD remain LOW for less
than 40ms, typical. Each of the buttons can be pushed
either once for a single increment/decrement or continuously for a multiple increments/decrements. The number
of increments/decrements of the wiper position depend
on how long the button is being pushed. When making a
continuous push, after the first second, the increment/decrement speed increases. For the first second
the device will be in the slow scan mode. Then if the button is held for longer than 1 second the device will go
into the fast scan mode. As soon as the button is
released the X9511 will return to a standby condition.
Page 3 of 9
X9511
The wiper, when at either fixed terminal, acts like its
mechanical equivalent and does not move beyond the
last position. That is, the counter does not wrap around
when clocked to either extreme.
Manual (Push Button) Store
AUTOSTORE
RTOTAL with VCC Removed
The value of the counter is stored in EEPROM memory
whenever the chip senses a power-down of VCC while
ASE is enabled (held LOW). When power is restored,
the content of the memory is recalled and the counter
reset to the last value stored.
When ASE is not enabled (held HIGH) a push button
switch may be used to pull ASE LOW and released to
perform a manual store of the wiper position.
The end to end resistance of the array will fluctuate once
VCC is removed.
If AUTOSTORE is to be implemented, ASE is typically
hard wired to VSS. If ASE is held HIGH during power-up
and then taken LOW, the wiper will not respond to the
PU or PD inputs until ASE is brought HIGH and held
HIGH.
VCC
VCC
3.3µF
8
2k
VCC
VH
PU
2
VW
PD
7
VL
ASE
1
3
5
6
VSS
FIGURE 1. TYPICAL CIRCUIT WITH ASE STORE
CONTROLLED BY PUSH BUTTON SWITCH
FN8205 Rev 3.00
February 2, 2007
8
1
VCC
VSS
PU
2
VH
PD
7
VW
ASE
VL
4
3
5
6
FIGURE 2. TYPICAL CIRCUIT WITH ASE STORE PIN USED
IN AUTOSTORE MODE
Page 4 of 9
X9511
ABSOLUTE MAXIMUM RATINGS
Temperature under bias .................... -65C to +135C
Storage temperature.......................... -65C to +150C
Voltage on PU, PD, and VCC
with respect to VSS ................................. -1V to +7V
Voltage on VH and VL
referenced to VSS ................................... -8V to +8V
V = |VH - VL|
X9511W ............................................................. 10V
Lead temperature (soldering 10 seconds) ....... +300C
Wiper current 1mA
ESD Rating
Human Body Model
(Per MIL-STD-883 Method 3015.7) .................... 2.5kV
Machine Model
(Per EIAJ ED-4701 Method C-111)...................... 250V
ANALOG CHARACTERISTICS
Linearity
Absolute linearity(1) 1.0 MI(2)
Relative linearity(3) 0.2 MI(2)
COMMENT
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only; functional operation of the
device (at these or any other conditions above those
listed in the operational sections of this specification) is
not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Temperature Coefficient
-40C to +85C
X9511W...................................... +300 ppm/C Typical
Ratiometric temperature coefficient 20 ppm
Wiper Adjustability
Electrical Characteristics
End-to-end resistance tolerance 20%
Power rating at +25C
X9511W ......................................................... 10mW
Wiper current 1mA Max.
Typical wiper resistance .......................................40
Typical noise..............................< -120dB/Hz Ref: 1V
Resolution
Resistance ............................................................. 3%
Unlimited wiper adjustment ....... (Non-Store operation)
Wiper position store operations...................... 100,000
data changes
Physical Characteristics
Marking Includes
Manufacturer’s Trademark
Resistance Value or Code
Date Code
Notes: (1) Absolute linearity is utilized to determine actual wiper voltage versus expected voltage = [VW(n) - (n*MI + VW(0))]/MI = ±1 MI
Maximum.
(2) 1 Ml = Minimum Increment = RTOT/31 for resistor mode or 1MI = [VW(31) - VW(0)]/31 for voltage divider mode.
(3) Relative linearity is a measure of the error in step size between taps = (VW(n+1) - VW(n) ] )/MI - 1= 0.2 MI
SYMBOL TABLE
WAVEFORM
INPUTS
OUTPUTS
Must be
steady
Will be
steady
May change
from Low to
High
Will change
from Low to
High
May change
from High to
Low
Will change
from High to
Low
Don’t Care:
Changes
Allowed
Changing:
State Not
Known
N/A
Center Line
is High
Impedance
FN8205 Rev 3.00
February 2, 2007
Page 5 of 9
X9511
RECOMMENDED OPERATING CONDITIONS
Temp
Commercial
Industrial
Min.
0×C
-40×C
Max.
Supply Voltage
X9511
+70°C
+85°C
Limits
5V ± 10%
D.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise specified.)
Limits
Symbol
Min. Typ.(4)
Parameter
ICC
VCC active current
ISB
Standby supply current
ILI
PU, PD, ASE input leakage current
VIH
PU, PD, ASE input HIGH voltage
VlL
PU, PD, ASE input LOW voltage
Max.
Unit
Test Conditions
1
3
mA
PU or PD held at VIL the other at VIH
100
500
µA
PU = PD = VIH
10
µA
VIN = VSS to VCC
2
V
0.8
V
RW
Wiper resistance
100
W
VVH
VH terminal voltage
-5
+5
V
VVL
VL terminal voltage
-5
+5
V
CIN
(5)
40
ASE, PU, PD input capacitance
10
pF
Wiper Current VCC/RTOT
VCC = 5V, VIN = 0V, TA = +25°C,
f = 1MHz
A.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise specified.)
Limits
Symbol
tGAP
tDB
Parameter
Time between two separate push button events
Min.
Typ.(4)
Max.
µs
50
Debounce time
Unit
30
40
ms
tS SLOW
After debounce to wiper change on a slow mode
100
250
375
ms
tS FAST
Wiper change on a fast mode
25
50
90
ms
500
µs
50
V/ms
tPU
Power-up to wiper stable
tR VCC
tASTO
(5)
VASTH
(5)
VASEND(5)
VCC power-up rate
AUTOSTORE cycle time
0.2
2
ms
AUTOSTORE threshold voltage
4
V
AUTOSTORE cycle end voltage
3.5
V
POWER-UP AND POWER-DOWN REQUIREMENTS
The are no restrictions on the sequencing of VCC and the voltage applied to the potentiometer pins during power-up
or power-down conditions. During power-up, the data sheet parameters for the DCP do not fully apply until 1ms after
VCC reaches its final value. The VCC ramp rate spec is always in effect.
FN8205 Rev 3.00
February 2, 2007
Page 6 of 9
X9511
AUTOSTORE Cycle Timing Diagram
VCC
5
VASTH
VOLTS (V)
AUTOS CYCLE IN PROGRESS
VASEND
tASTO
STORE TIME
TIME (ms)
Notes: VASTH - AUTOSTORE threshold voltage
VASEND - AUTOSTORE cycle end voltage
tASTO - AUTOSTORE cycle time
(4) Typical values are for TA = +25°C and nominal supply voltage.
(5) This parameter is periodically sampled and not 100% tested.
Slow Mode Timing
tDB
tGAP
PU
MI(1)
VW
Note:
(1) MI in the A.C. timing diagram refers to the minimum incremental change in the wiper voltage.
Fast Mode Timing
tDB
PU
tS FAST
tS SLOW
VW
MI(1)
1 Second
Note:
(1) MI in the A.C. timing diagram refers to the minimum incremental change in the wiper voltage.
FN8205 Rev 3.00
February 2, 2007
Page 7 of 9
X9511
Plastic Dual-In-Line Packages (PDIP)
E
D
A2
SEATING
PLANE
L
N
A
PIN #1
INDEX
E1
c
e
b
A1
NOTE 5
1
eA
eB
2
N/2
b2
MDP0031
PLASTIC DUAL-IN-LINE PACKAGE
SYMBOL
PDIP8
PDIP14
PDIP16
PDIP18
PDIP20
TOLERANCE
A
0.210
0.210
0.210
0.210
0.210
MAX
A1
0.015
0.015
0.015
0.015
0.015
MIN
A2
0.130
0.130
0.130
0.130
0.130
±0.005
b
0.018
0.018
0.018
0.018
0.018
±0.002
b2
0.060
0.060
0.060
0.060
0.060
+0.010/-0.015
c
0.010
0.010
0.010
0.010
0.010
+0.004/-0.002
D
0.375
0.750
0.750
0.890
1.020
±0.010
E
0.310
0.310
0.310
0.310
0.310
+0.015/-0.010
E1
0.250
0.250
0.250
0.250
0.250
±0.005
e
0.100
0.100
0.100
0.100
0.100
Basic
eA
0.300
0.300
0.300
0.300
0.300
Basic
eB
0.345
0.345
0.345
0.345
0.345
±0.025
L
0.125
0.125
0.125
0.125
0.125
±0.010
N
8
14
16
18
20
Reference
NOTES
1
2
Rev. B 2/99
NOTES:
1. Plastic or metal protrusions of 0.010” maximum per side are not included.
2. Plastic interlead protrusions of 0.010” maximum per side are not included.
3. Dimensions E and eA are measured with the leads constrained perpendicular to the seating plane.
4. Dimension eB is measured with the lead tips unconstrained.
5. 8 and 16 lead packages have half end-leads as shown.
© Copyright Intersil Americas LLC 2005-2007. All Rights Reserved.
All trademarks and registered trademarks are the property of their respective owners.
For additional products, see www.intersil.com/en/products.html
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted
in the quality certifications found at www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such
modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are
current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its
subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
FN8205 Rev 3.00
February 2, 2007
Page 8 of 9
X9511
Small Outline Package Family (SO)
A
D
h X 45°
(N/2)+1
N
A
PIN #1
I.D. MARK
E1
E
c
SEE DETAIL “X”
1
(N/2)
B
L1
0.010 M C A B
e
H
C
A2
GAUGE
PLANE
SEATING
PLANE
A1
0.004 C
0.010 M C A B
L
b
0.010
4° ±4°
DETAIL X
MDP0027
SMALL OUTLINE PACKAGE FAMILY (SO)
SYMBOL
SO-8
SO-14
SO16
(0.150”)
SO16 (0.300”)
(SOL-16)
SO20
(SOL-20)
SO24
(SOL-24)
SO28
(SOL-28)
TOLERANCE
NOTES
A
0.068
0.068
0.068
0.104
0.104
0.104
0.104
MAX
-
A1
0.006
0.006
0.006
0.007
0.007
0.007
0.007
0.003
-
A2
0.057
0.057
0.057
0.092
0.092
0.092
0.092
0.002
-
b
0.017
0.017
0.017
0.017
0.017
0.017
0.017
0.003
-
c
0.009
0.009
0.009
0.011
0.011
0.011
0.011
0.001
-
D
0.193
0.341
0.390
0.406
0.504
0.606
0.704
0.004
1, 3
E
0.236
0.236
0.236
0.406
0.406
0.406
0.406
0.008
-
E1
0.154
0.154
0.154
0.295
0.295
0.295
0.295
0.004
2, 3
e
0.050
0.050
0.050
0.050
0.050
0.050
0.050
Basic
-
L
0.025
0.025
0.025
0.030
0.030
0.030
0.030
0.009
-
L1
0.041
0.041
0.041
0.056
0.056
0.056
0.056
Basic
-
h
0.013
0.013
0.013
0.020
0.020
0.020
0.020
Reference
-
16
20
24
28
Reference
N
8
14
16
NOTES:
Rev. L 2/01
1. Plastic or metal protrusions of 0.006” maximum per side are not included.
2. Plastic interlead protrusions of 0.010” maximum per side are not included.
3. Dimensions “D” and “E1” are measured at Datum Plane “H”.
4. Dimensioning and tolerancing per ASME Y14.5M-1994
FN8205 Rev 3.00
February 2, 2007
Page 9 of 9