DATASHEET
X9259
FN8169
Rev 6.00
December 12, 2014
Single Supply/Low Power/256-Tap/2-Wire Bus Quad Digitally-Controlled
(XDCP™) Potentiometers
Features
The X9259 integrates four digitally controlled potentiometers
(XDCP) on a monolithic CMOS integrated circuit.
• Four separate potentiometers in one package
The digitally controlled potentiometers are implemented with
a combination of resistor elements and CMOS switches. The
position of the wipers are controlled by the user through the
2-wire bus interface. Each potentiometer has associated with
it a volatile Wiper Counter Register (WCR) and four nonvolatile
Data Registers that can be directly written to and read by the
user. The content of the WCR controls the position of the wiper.
At power-up, the device recalls the content of the default Data
Registers of each DCP (DR00, DR10, DR20, and DR30) to the
corresponding WCR.
• 256 resistor taps–0.4% resolution
• 2-wire serial interface for write, read, and
transfer operations of the potentiometer
• Wiper resistance: 100Ω typical at VCC = 5V
• 4 nonvolatile data registers for each potentiometer
• Nonvolatile storage of multiple wiper positions
• Standby current VH, VL, and VW.
14. n = 0, 1, 2, …,255; m = 0, 1, 2, …, 254.
FN8169 Rev 6.00
December 12, 2014
Page 12 of 21
X9259
DC Electrical Specifications
Over the recommended operating conditions unless otherwise specified.
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ICC1
VCC supply current
(active)
fSCL = 400kHz; VCC = +6V;
SDA = Open; (for 2-Wire, Active, Read and
Volatile Write States only)
3
mA
ICC2
VCC supply current
(nonvolatile write)
fSCL = 400kHz; VCC = +6V;
SDA = Open; (for 2-Wire, Active,
Nonvolatile Write State only)
5
mA
ISB
VCC current (standby)
VCC = +6V; VIN = VSS or VCC; SDA = VCC;
(for 2-Wire, Standby State only)
5
µA
ILI
Input leakage current
VIN = VSS to VCC
10
µA
ILO
Output leakage current
VOUT = VSS to VCC
10
µA
VIH
Input HIGH voltage
VIL
Input LOW voltage
VOL
Output LOW voltage
IOL = 3mA
VOH
Output HIGH voltage
IOH = -1mA, VCC +3V
VCC - 0.8
V
VOH
Output HIGH voltage
IOH = -0.4mA, VCC +3V
VCC - 0.4
V
VCC x 0.7
V
VCC x 0.3
V
0.4
V
Endurance and Data Retention
PARAMETER
Minimum endurance
MIN
UNITS
100,000
Data changes per bit per register
100
years
Data retention
Capacitance
SYMBOL
TEST
MAX
UNITS
TEST CONDITIONS
CIN/OUT (Note 15) Input / Output capacitance (SDA)
8
pF
VOUT = 0V
CIN (Note 15)
6
pF
VIN = 0V
Input capacitance (SCL, WP, A2, A1 and A0)
Power-up Timing
SYMBOL
PARAMETER
MIN
MAX
UNITS
tr VCC (Note 15)
VCC Power-up rate
tPUR (Note 16)
Power-up to initiation of read operation
1
ms
tPUW (Note 16)
Power-up to initiation of write operation
50
ms
0.2
V/ms
AC Test Conditions
Input Pulse Levels
Input rise and fall times
Input and output timing level
VCC x 0.1 to VCC x 0.9
10ns
VCC x 0.5
NOTES:
15. This parameter is not 100% tested
16. tPUR and tPUW are the delays required from the time the power supply (VCC) is stable until the specific instruction can be issued. These parameters
are periodically sampled and not 100% tested.
FN8169 Rev 6.00
December 12, 2014
Page 13 of 21
X9259
Equivalent AC Load Circuit
5V
SPICE Macromodel
1533Ω
RTOTAL
RH
SDA pin
RL
CW
CL
CL
10pF
100pF
25pF
10pF
RW
AC Timing
SYMBOL
PARAMETER
MIN
MAX
UNITS
400
kHz
fSCL
Clock Frequency
tCYC
Clock Cycle Time
2500
ns
tHIGH
Clock High Time
600
ns
tLOW
Clock Low Time
1300
ns
tSU:STA
Start Setup Time
600
ns
tHD:STA
Start Hold Time
600
ns
tSU:STO
Stop Setup Time
600
ns
tSU:DAT
SDA Data Input Setup Time
100
ns
tHD:DAT
SDA Data Input Hold Time
30
ns
tR
SCL and SDA Rise Time
300
ns
tF
SCL and SDA Fall Time
300
ns
tAA
SCL Low to SDA Data Output Valid Time
0.9
µs
tDH
SDA Data Output Hold Time
0
ns
Noise Suppression Time Constant at SCL and SDA inputs
50
ns
1200
ns
TI
tBUF
Bus Free Time (Prior to Any Transmission)
tSU:WPA
A0, A1 Setup Time
0
ns
tHD:WPA
A0, A1 Hold Time
0
ns
High-Voltage Write Cycle Timing
SYMBOL
PARAMETER
tWR
High-voltage write cycle time (store instructions)
TYP
MAX
UNITS
5
10
ms
XDCP Timing
SYMBOL
tWRPO
tWRL
PARAMETER
MIN
MAX
UNITS
Wiper response time after the third (last) power supply is stable
5
10
µs
Wiper response time after instruction issued (all load instructions)
5
10
µs
FN8169 Rev 6.00
December 12, 2014
Page 14 of 21
X9259
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
Timing Diagrams
Start and Stop Timing
(START)
(STOP)
tR
tF
SCL
tSU:STA
tHD:STA
tSU:STO
tR
tF
SDA
Input Timing
tCYC
tHIGH
SCL
tLOW
SDA
tSU:DAT
tHD:DAT
tBUF
Output Timing
SCL
SDA
tAA
FN8169 Rev 6.00
December 12, 2014
tDH
Page 15 of 21
X9259
XDCP Timing (for All Load Instructions)
(STOP)
SCL
LSB
SDA
tWRL
VWx
Write Protect and Device Address Pins Timing
(START)
(STOP)
SCL
...
(Any Instruction)
...
SDA
...
tSU:WPA
tHD:WPA
WP
A0, A1
FN8169 Rev 6.00
December 12, 2014
Page 16 of 21
X9259
Applications Information
Basic Configurations of Electronic Potentiometers
+VR
VR
RW
I
Three-terminal
Potentiometer;
Variable voltage divider
Two-terminal Variable
Resistor;
Variable current
Application Circuits
Non inverting Amplifier
VS
Voltage Regulator
+
VO
–
VIN
VO (REG)
317
R1
R2
Iadj
R1
R2
VO = (1+R2/R1)VS
VO (REG) = 1.25V (1+R2/R1)+Iadj R2
Offset Voltage Adjustment
R1
Comparator with Hysteresis
R2
VS
VS
–
+
VO
100kΩ
–
VO
+
+12V
FN8169 Rev 6.00
December 12, 2014
10kΩ
}
10kΩ
}
TL072
10kΩ
R1
R2
VUL = {R1/(R1+R2)} VO(max)
RLL = {R1/(R1+R2)} VO(min)
-12V
Page 17 of 21
X9259
Application Circuits (continued)
Attenuator
Filter
C
VS
+
R2
R1
VS
VO
–
–
R
VO
+
R3
R4
R2
R1 = R2 = R3 = R4 = 10kΩ
R1
GO = 1 + R2/R1
fc = 1/(2RC)
VO = G VS
-1/2 G +1/2
R2
}
VS
R1
}
Inverting Amplifier
Equivalent L-R Circuit
R2
C1
–
VS
VO
+
+
–
R1
ZIN
VO = G VS
G = - R2/R1
R3
ZIN = R2 + s R2 (R1 + R3) C1 = R2 + s Leq
(R1 + R3) >> R2
Function Generator
C
R2
–
R1
–
+
} RA
+
} RB
frequency R1, R2, C
amplitude RA, RB
FN8169 Rev 6.00
December 12, 2014
Page 18 of 21
X9259
Revision History
The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to the web to make sure that
you have the latest revision.
DATE
REVISION
December 12, 2014
FN8169.6
CHANGE
Updated Datasheet to Intersil new standards.
Updated Ordering Information Table on page 2, by removing obsoleted parts and 100kΩ referenced parts,
adding Note 3 and changed TSSOP POD references from “MDP0044” to “M24.173”.
On page 3. in the Pin Descriptions table removed duplicate entry for Pin 6.
Added Revision History and About Intersil Verbiage
Updated M24.3 POD to the latest revision.
-“Updated to new POD standard by removing table listing dimensions and putting dimensions on drawing.
Added Land Pattern.”
Replaced MDP0044 POD with M24.173 POD to update to new format and only show 24LD version.
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FN8169 Rev 6.00
December 12, 2014
Page 19 of 21
X9259
Package Outline Drawing
M24.3
24 LEAD WIDE BODY SMALL OUTLINE PLASTIC PACKAGE (SOIC)
Rev 2, 3/11
24
INDEX
AREA
7.60 (0.299)
7.40 (0.291) 10.65 (0.419)
10.00 (0.394)
DETAIL "A"
1
2
3
TOP VIEW
1.27 (0.050)
0.40 (0.016)
SEATING PLANE
2.65 (0.104)
2.35 (0.093)
15.60 (0.614)
15.20 (0.598)
0.75 (0.029)
x 45°
0.25 (0.010)
0.30 (0.012)
0.10 (0.004)
1.27 (0.050)
0.51 (0.020)
0.33 (0.013)
8°
0°
0.32 (0.012)
0.23 (0.009)
SIDE VIEW “B”
SIDE VIEW “A”
1.981 (0.078)
9.373 (0.369)
1.27 (0.050)
NOTES:
1. Dimensioning and tolerancing per ANSI Y14.5M-1982.
2. Package length does not include mold flash, protrusions or gate
burrs. Mold flash, protrusion and gate burrs shall not exceed
0.15mm (0.006 inch) per side.
3. Package width does not include interlead flash or protrusions.
Interlead flash and protrusions shall not exceed 0.25mm
(0.010 inch) per side.
4. The chamfer on the body is optional. If it is not present, a visual
index feature must be located within the crosshatched area.
5. Terminal numbers are shown for reference only.
6. The lead width as measured 0.36mm (0.014 inch) or greater above
the seating plane, shall not exceed a maximum value of 0.61mm
(0.024 inch).
7. Controlling dimension: MILLIMETER. Converted inch dimensions in
( ) are not necessarily exact.
8. This outline conforms to JEDEC publication MS-013-AD ISSUE C.
0.533 (0.021)
TYPICAL RECOMMENDED LAND PATTERN
FN8169 Rev 6.00
December 12, 2014
Page 20 of 21
X9259
Package Outline Drawing
M24.173
24 LEAD THIN SHRINK SMALL OUTLINE PACKAGE (TSSOP)
Rev 1, 5/10
A
1
3
7.80 ±0.10
SEE DETAIL "X"
13
24
6.40
PIN #1
I.D. MARK
4.40 ±0.10
2
3
0.20 C B A
1
12
0.15 +0.05
-0.06
B
0.65
TOP VIEW
END VIEW
1.00 REF
H
- 0.05
C
0.90 +0.15
-0.10
1.20 MAX
GAUGE
PLANE
SEATING PLANE
0.25 +0.05
-0.06
0.10 M C B A
0.10 C
5
0°-8°
0.05 MIN
0.15 MAX
SIDE VIEW
0.25
0.60± 0.15
DETAIL "X"
(1.45)
NOTES:
1. Dimension does not include mold flash, protrusions or gate burrs.
(5.65)
Mold flash, protrusions or gate burrs shall not exceed 0.15 per side.
2. Dimension does not include interlead flash or protrusion. Interlead
flash or protrusion shall not exceed 0.25 per side.
3. Dimensions are measured at datum plane H.
4. Dimensioning and tolerancing per ASME Y14.5M-1994.
5. Dimension does not include dambar protrusion. Allowable protrusion
shall be 0.08mm total in excess of dimension at maximum material
condition. Minimum space between protrusion and adjacent lead
(0.65 TYP)
(0.35 TYP)
TYPICAL RECOMMENDED LAND PATTERN
is 0.07mm.
6. Dimension in ( ) are for reference only.
7. Conforms to JEDEC MO-153.
FN8169 Rev 6.00
December 12, 2014
Page 21 of 21