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ISL90843
Quad Digital Controlled Potentiometers (XDCPTM)
Data Sheet March 29, 2006 FN8095.2
Low Noise, Low Power, I2C(R) Bus, 256 Taps
The ISL90843 integrates four digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated circuit. 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 I2C bus interface. Each potentiometer has an associated Wiper Register (WR) that can be directly written to and read by the user. The contents of the WR controls the position of the wiper. The DCPs can be used as a voltage divider in a wide variety of applications including control, AC measurement, and signal processing.
Features
* Four potentiometers in one package * 256 resistor taps-0.4% resolution * I2C serial interface - Two address pins allow up to four devices/bus * Wiper resistance: 70 typical @ 3.3V * Standby current <5A max * Power supply: 2.7V to 5.5V * 10k or 50k total resistance * 10 Ld MSOP package * Pb-free plus anneal product (RoHS compliant)
Pinout
ISL90843 (10 LD MSOP) TOP VIEW
RW3 SCL SDA GND RW2
1 2 3 4 5
10 9 8 7 6
RW0 VCC A1 A0 RW1
Ordering Information
PART NUMBER (Note) ISL90843WIU1027Z* ISL90843UIU1027Z* PART MARKING DET DES RESISTANCE OPTION (k) 10 50 TEMP RANGE (C) -40 to +85 -40 to +85 PACKAGE (Pb-Free) 10 Ld MSOP 10 Ld MSOP
*Add "-TK" 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.
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
ISL90843 Functional Diagram
VCC RH SCL SDA A0 A1 I2C INTERFACE RH RH RH
RL
RL
RL
RL
GND
RW0
RW1
RW2
RW3
Block Diagram
VCC
WR3
DCP3
RW3
I2C INTERFACE SDA SCL
WR2 POWER-UP, INTERFACE, CONTROL AND STATUS LOGIC WR1
DCP2
RW2
DCP1
RW1
A1 A0
WR0
DCP0
RW0
GND
Pin Descriptions
MSOP PIN 1 2 3 4 5 6 7 8 9 10 SYMBOL RW3 SCL SDA GND RW2 RW1 A0 A1 VCC RW0 "Wiper" terminal of DCP3 I2C interface clock Serial data I/O for the I2C interface Device ground pin "Wiper" terminal of DCP2 "Wiper" terminal of DCP1 Device address for the I2C interface Device address for the I2C interface Power supply pin "Wiper" terminal of DCP0 DESCRIPTION
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ISL90843
Absolute Maximum Ratings
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65C to +150C Voltage at any Digital Interface Pin with Respect to GND . . . . . . . . . . . . . . . . . . . . . -0.3V to VCC+0.3 VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V Voltage at any DCP Pin with Respect to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VCC Lead Temperature (Soldering, 10s) . . . . . . . . . . . . . . . . . . . . . 300C IW (10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6mA
Recommended Operating Conditions
Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40C to +85C VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V Power Rating of each DCP . . . . . . . . . . . . . . . . . . . . . . . . . . . .5mW Wiper Current of each DCP . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0mA
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Analog Specifications
SYMBOL RTOTAL
Over recommended operating conditions unless otherwise stated. TEST CONDITIONS W, U versions respectively -20 VCC = 3.3V @ 25C 70 25 MIN TYP (NOTE 1) 10, 50 +20 MAX UNITS k % pF
PARAMETER RH to RL Resistance RH to RL Resistance Tolerance
RW CW
Wiper Resistance Potentiometer Capacitance (Note 15)
VOLTAGE DIVIDER MODE (0V @ RLi; VCC @ RHi; measured at RWi, unloaded; i = 0, 1, 2, or 3) INL (Note 6) Integral Non-Linearity Monotonic over all tap positions W option U option Full-Scale Error W option U option DCP to DCP Matching Any two DCPs at same tap position, same voltage at all RH terminals, and same voltage at all RL terminals DCP register set to 80 hex -1 -0.5 0 0 -7 -2 -2 1 0.5 -1 -1 1 0.5 7 2 0 0 2 LSB (Note 2) LSB (Note 2) LSB (Note 2) LSB (Note 2) LSB (Note 2) ppm/C
DNL (Note 5) Differential Non-Linearity ZSerror (Note 3) FSerror (Note 4) VMATCH (Note 7) Zero-Scale Error
TCV (Note 8) Ratiometric Temperature Coefficient
4
Operating Specifications Over the recommended operating conditions unless otherwise specified.
SYMBOL ICC1 ICC2 ISB PARAMETER VCC Supply Current (Volatile write/read) VCC Supply Current (Volatile write/read) VCC current (standby) TEST CONDITIONS 10k DCPs, fSCL Read and Write States) = 400kHz; SDA = Open; (for I2C, Active, MIN TYP (NOTE 1) MAX 3.8 2.9 2.8 0.6 1.9 0.4 -10 10 1 1.8 2.6 UNITS mA mA mA mA mA mA A s V
50k DCPs, fSCL = 400kHz; SDA = Open; (for I2C, Active, Read and Write States) VCC = +5.5V, 10k DCPs, I2C Interface in Standby State VCC = +5.5V, 50k DCPs, I2C Interface in Standby State VCC = +3.6V, 10k DCPs, I2C Interface in Standby State VCC = +3.6V, 50k DCPs, I2C Interface in Standby State
ILkgDig tDCP (Note 15) Vpor
Leakage Current, at Pins A0, A1, Voltage at pin from GND to VCC SDA and SCL Pins DCP Wiper Response Time Power-On Recall Voltage SCL falling edge of last bit of DCP Data Byte to wiper change Minimum VCC at which memory recall occurs
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ISL90843
Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued)
SYMBOL VccRamp PARAMETER VCC Ramp Rate VCC above Vpor, to DCP Initial Value Register recall completed, and I2C Interface in Standby State. TEST CONDITIONS MIN 0.2 3 TYP (NOTE 1) MAX UNITS V/ms ms
tD (Note 15) Power-Up Delay SERIAL INTERFACE SPECS VIL VIH A1, A0, SDA, and SCL Input Buffer LOW Voltage A1, A0, SDA, and SCL Input Buffer HIGH Voltage
-0.3 0.7*VCC 0.05* VCC 0
0.3*VCC VCC+0.3
V V V
Hysteresis SDA and SCL Input Buffer (Note 15) Hysteresis VOL (Note 15) Cpin (Note 15) fSCL tIN (Note 15) tAA (Note 15) tBUF (Note 15) tLOW tHIGH tSU:STA tHD:STA tSU:DAT tHD:DAT tSU:STO tHD:STO tDH (Note 15) tR (Note 15) tF (Note 15) Cb (Note 15) Rpu (Note 15) SDA Output Buffer LOW Voltage, Sinking 4mA A1, A0, SDA, and SCL Pin Capacitance SCL Frequency Pulse Width Suppression Time at Any pulse narrower than the max spec is suppressed. SDA and SCL Inputs SCL Falling Edge to SDA Output SCL falling edge crossing 30% of VCC, until SDA exits the 30% to 70% of VCC window. Data Valid Time the Bus Must be Free Before SDA crossing 70% of VCC during a STOP condition, to the Start of a New Transmission SDA crossing 70% of VCC during the following START condition. Clock LOW Time Clock HIGH Time START Condition Setup Time START Condition Hold Time Input Data Setup Time Input Data Hold Time STOP Condition Setup Time STOP Condition Hold Time for Read, or Volatile Only Write Output Data Hold Time SDA and SCL Rise Time SDA and SCL Fall Time Measured at the 30% of VCC crossing. Measured at the 70% of VCC crossing. SCL rising edge to SDA falling edge. Both crossing 70% of VCC. From SDA falling edge crossing 30% of VCC to SCL falling edge crossing 70% of VCC. From SDA exiting the 30% to 70% of VCC window, to SCL rising edge crossing 30% of VCC. From SCL rising edge crossing 70% of VCC to SDA entering the 30% to 70% of VCC window. From SCL rising edge crossing 70% of VCC, to SDA rising edge crossing 30% of VCC. From SDA rising edge to SCL falling edge. Both crossing 70% of VCC. From SCL falling edge crossing 30% of VCC, until SDA enters the 30% to 70% of VCC window. From 30% to 70% of VCC From 70% to 30% of VCC
0.4 10 400 50 900
V pF kHz ns ns ns
1300
1300 600 600 600 100 0 600 600 0 20 + 0.1 * Cb 20 + 0.1 * Cb 10 1 250 250 400
ns ns ns ns ns ns ns ns ns ns ns pF k
Capacitive Loading of SDA or SCL Total on-chip and off-chip SDA and SCL Bus Pull-Up Resistor Off-Chip Maximum is determined by tR and tF. For Cb = 400pF, max is about 2~2.5k. For Cb = 40pF, max is about 15~20k
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ISL90843
Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued)
SYMBOL tSU:A tHD:A PARAMETER A1 and A0 Setup Time A1 and A0 Hold Time TEST CONDITIONS Before START condition After STOP condition MIN 600 600 TYP (NOTE 1) MAX UNITS ns ns
SDA vs SCL Timing
tF tHIGH tLOW tR
SCL tSU:STA SDA (INPUT TIMING)
tSU:DAT tHD:DAT tSU:STO
tHD:STA
tAA SDA (OUTPUT TIMING)
tDH
tBUF
A0 and A1 Pin Timing
START SCL CLK 1 STOP
SDA IN tSU:A A0, A1 tHD:A
NOTES: 1. Typical values are for TA = 25C and 3.3V supply voltage. 2. LSB: [V(RW)255 - V(RW)0]/255. V(RW)255 and V(RW)0 are V(RW) for the DCP register set to FF hex and 00 hex respectively. LSB is the incremental voltage when changing from one tap to an adjacent tap. 3. ZS error = V(RW)0/LSB. 4. FS error = [V(RW)255 - VCC]/LSB. 5. DNL = [V(RW)i - V(RW)i-1]/LSB-1, for i = 1 to 255. i is the DCP register setting. 6. INL = [V(RW)i - i * LSB - V(RW)0]/LSB for i = 1 to 255. 7. VMATCH = [V(RWx)i - V(RWy)i]/LSB, for i = 0 to 255, x = 0 to 3 and y = 0 to 3. Max ( V ( RW ) i ) - Min ( V ( RW ) i ) 10 6 8. TC V = --------------------------------------------------------------------------------------------- x ---------------- for i = 16 to 240 decimal, T = -40C to 85C. Max( ) is the maximum value of the wiper [ Max ( V ( RW ) i ) + Min ( V ( RW ) i ) ] 2 125C voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range. 9. MI = |R255 - R0|/255. R255 and R0 are the measured resistances for the DCP register set to FF hex and 00 hex respectively. 10. Roffset = R0/MI, when measuring between RW and RL. Roffset = R255/MI, when measuring between RW and RH. 11. RDNL = (Ri - Ri-1)/MI-1, for i = 32 to 255. 12. RINL = [Ri - (MI * i) - R0]/MI, for i = 32 to 255. 13. RMATCH = (Ri,x - Ri,y)/MI, for i = 0 to 255, x = 0 to 3 and y = 0 to 3. [ Max ( Ri ) - Min ( Ri ) ] 10 14. TC R = --------------------------------------------------------------- x ---------------- for i = 32 to 255, T = -40C to 85C. Max( ) is the maximum value of the resistance and Min ( ) is the [ Max ( Ri ) + Min ( Ri ) ] 2 125C minimum value of the resistance over the temperature range. 15. This parameter is not 100% tested.
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FN8095.2 March 29, 2006
ISL90843 Typical Performance Curves
160 Vcc = 2.7, T = 85C 140 WIPER RESISTANCE () 120 100 80 60 40 20 0 0 50 100 150 200 250 TAP POSITION (DECIMAL) Vcc = 5.5, T = -40C Vcc = 5.5, T = 85C Vcc = 5.5, T = 25C STANDBY ICC (A) Vcc = 2.7, T = -40C Vcc = 2.7, T = 25C 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 2.7 3.2 25C 3.7 4.2 VCC (V) 4.7 5.2 85C -40C 1.8 1.6
FIGURE 1. WIPER RESISTANCE vs TAP POSITION [ I(RW) = Vcc/RTOTAL] FOR 50k (U)
FIGURE 2. STANDBY Icc vs Vcc
0.2 0.15 0.1
0.3 Vcc = 5.5, T = -40C Vcc = 2.7, T = 25C Vcc = 2.7, T = -40C 0.2 0.1
Vcc = 2.7, T = -40C Vcc = 5.5, T = -40C
Vcc = 5.5, T = 85C
DNL (LSB)
INL (LSB)
0.05 0 -0.05 -0.1 -0.15 -0.2 0 Vcc = 5.5, T = 25C Vcc = 2.7, T = 85C Vcc = 5.5, T = 85C
0 -0.1 -0.2 -0.3
Vcc = 2.7, T = 25C Vcc = 2.7, T = 85C Vcc = 5.5, T = 25C
50
100
150
200
250
0
50
100
150
200
250
TAP POSITION (DECIMAL)
TAP POSITION (DECIMAL)
FIGURE 3. DNL vs TAP POSITION FOR 10k (W)
FIGURE 4. INL vs TAP POSITION FOR 10k (W)
0.4
0 -0.1
0.35 ZSerror (LSB) FSerror (LSB)
-0.2 -0.3
Vcc = 5.5V
0.3 2.7V 0.25
-0.4 -0.5 -0.6 -0.7 Vcc = 2.7V
0.2
5.5V
-0.8 -0.9
0.15 -40
-20
0
20
40
60
80
-1 -40
-20
0
20
40
60
80
TEMPERATURE (C)
TEMPERATURE (C)
FIGURE 5. ZSerror vs TEMPERATURE
FIGURE 6. FSerror vs TEMPERATURE
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FN8095.2 March 29, 2006
ISL90843 Typical Performance Curves
(Continued)
1.50 END TO END RTOTAL CHANGE (%) 1.00
20
10 0.50 0.00 5.5V TC (ppm/C) 2.7V
0
-0.50 -1.00 -1.50 -40
-10
-20
0
20
40
60
80
-20 32
82
132
182
232
TEMPERATURE (C)
TAP POSITION (DECIMAL)
FIGURE 7. END TO END RTOTAL % CHANGE vs TEMPERATURE
FIGURE 8. TC FOR VOLTAGE DIVIDER MODE IN ppm
Signal at Wiper (Wiper Unloaded)
SCL
Signal at Wiper (Wiper Unloaded Movement From ffh to 00h)
Wiper Movement Mid Point From 80h to 7fh
FIGURE 9. MIDSCALE GLITCH, CODE 80h TO 7Fh (WIPER 0)
FIGURE 10. LARGE SIGNAL SETTLING TIME
Principles of Operation
The ISL90843 is an integrated circuit incorporating four DCPs with their associated registers, and an I2C serial interface providing direct communication between a host and the potentiometers.
As the value of the WR increases from all zeroes (00h) to all ones (255 decimal), the wiper moves monotonically from the position closest to RL to the closest to RH. At the same time, the resistance between RW and RL increases monotonically, while the resistance between RH and RW decreases monotonically. While the ISL90843 is being powered up, all four WRs are reset to 80h (128 decimal), which locates RW roughly at the center between RL and RH. The WRs can be read or written directly using the I2C serial interface as described in the following sections. The I2C interface Address Byte has to be set to 00hex, 01hex, 02hex, and 03hex to access the WR of DCP0, DCP1, DCP2, and DCP3 respectively.
DCP Description
Each DCP is implemented with a combination of resistor elements and CMOS switches. The physical ends of each DCP are equivalent to the fixed terminals of a mechanical potentiometer (RH and RL pins). The RW pin of each DCP is connected to intermediate nodes, and is equivalent to the wiper terminal of a mechanical potentiometer. The position of the wiper terminal within the DCP is controlled by an 8-bit volatile Wiper Register (WR). Each DCP has its own WR. When the WR of a DCP contains all zeroes (WR<7:0>: 00h), its wiper terminal (RW) is closest to its "Low" terminal (RL). When the WR of a DCP contains all ones (WR<7:0>: FFh), its wiper terminal (RW) is closest to its "High" terminal (RH). 7
I2C Serial Interface
The ISL90843 supports a bidirectional bus oriented protocol. The protocol defines any device that sends data onto the
FN8095.2 March 29, 2006
ISL90843
bus as a transmitter and the receiving device as the receiver. The device controlling the transfer is a master and the device being controlled is the slave. The master always initiates data transfers and provides the clock for both transmit and receive operations. Therefore, the ISL90843 operates as a slave device in all applications. All communication over the I2C interface is conducted by sending the MSB of each byte of data first. of a read operation, or at the end of a write operation places the device in its standby mode. An ACK, Acknowledge, is a software convention used to indicate a successful data transfer. The transmitting device, either master or slave, releases the SDA bus after transmitting eight bits. During the ninth clock cycle, the receiver pulls the SDA line LOW to acknowledge the reception of the eight bits of data (See Figure 12). The ISL90843 responds with an ACK after recognition of a START condition followed by a valid Identification Byte, and once again after successful receipt of an Address Byte. The ISL90843 also responds with an ACK after receiving a Data Byte of a write operation. The master must respond with an ACK after receiving a Data Byte of a read operation A valid Identification Byte contains 01010 as the five MSBs, and the following two bits matching the logic values present at pins A1 and A0. The LSB is in the Read/Write bit. Its value is "1" for a Read operation, and "0" for a Write operation (See Table 1).
TABLE 1. IDENTIFICATION BYTE FORMAT Logic values at pins A1, and A0 respectively 0 (MSB) 1 0 1 0 A1 A0 R/W (LSB)
Protocol Conventions
Data states on the SDA line can change only during SCL LOW periods. SDA state changes during SCL HIGH are reserved for indicating START and STOP conditions (See Figure 11). On power-up of the ISL90843 the SDA pin is in the input mode. All I2C interface operations must begin with a START condition, which is a HIGH to LOW transition of SDA while SCL is HIGH. The ISL90843 continuously monitors the SDA and SCL lines for the START condition and does not respond to any command until this condition is met (See Figure 11). A START condition is ignored during the powerup of the device. All I2C interface operations must be terminated by a STOP condition, which is a LOW to HIGH transition of SDA while SCL is HIGH (See Figure 11). A STOP condition at the end
SCL
SDA
START
DATA STABLE
DATA CHANGE
DATA STABLE
STOP
FIGURE 11. VALID DATA CHANGES, START, AND STOP CONDITIONS
SCL FROM MASTER
1
8
9
SDA OUTPUT FROM TRANSMITTER
HIGH IMPEDANCE
SDA OUTPUT FROM RECEIVER START
HIGH IMPEDANCE
ACK
FIGURE 12. ACKNOWLEDGE RESPONSE FROM RECEIVER
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FN8095.2 March 29, 2006
ISL90843
WRITE SIGNALS FROM THE MASTER S T A R T S T O P
IDENTIFICATION BYTE
ADDRESS BYTE
DATA BYTE
SIGNAL AT SDA SIGNALS FROM THE ISL90843
0 1 0 1 0 A1 A0 0 A C K
000000 A C K A C K
FIGURE 13. BYTE WRITE SEQUENCE
S T A R T S T A IDENTIFICATION R BYTE WITH T R/W=1
SIGNALS FROM THE MASTER
IDENTIFICATION BYTE WITH R/W=0
ADDRESS BYTE
A C K
A C K
S A T C O K P
SIGNAL AT SDA
0 1 0 1 0 A1 A0 0 A C K
000000 A C K
0 1 0 1 0 A1 A0 1 A C K
SIGNALS FROM THE SLAVE
FIRST READ DATA BYTE
LAST READ DATA BYTE
FIGURE 14. READ SEQUENCE
Write Operation
A Write operation requires a START condition, followed by a valid Identification Byte, a valid Address Byte, a Data Byte, and a STOP condition. After each of the three bytes, the ISL90843 responds with an ACK. At this time, the device enters its standby state (See Figure 13).
Read Operation
A Read operation consist of a three byte instruction followed by one or more Data Bytes (See Figure 14). The master initiates the operation issuing the following sequence: a START, the Identification byte with the R/W bit set to "0", an Address Byte, a second START, and a second Identification byte with the R/W bit set to "1". After each of the three bytes, the ISL90843 responds with an ACK. Then the ISL90843 transmits Data Bytes as long as the master responds with an ACK during the SCL cycle following the eighth bit of each byte. The master terminates the read operation (issuing a NACK and a STOP condition) following the last bit of the last Data Byte (See Figure 14). The Data Bytes are from the registers indicated by an internal pointer. This pointer initial value is determined by the Address Byte in the Read operation instruction, and increments by one during transmission of each Data Byte. After reaching the memory location 03h the pointer "rolls over" to 00h, and the device continues to output data for each ACK received.
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FN8095.2 March 29, 2006
ISL90843 MSOP Packaging Information
10 Lead MSOP, Package Code
0.0106 [0.27] 0.0067 [0.17] 10 9 8 7 6
4
0.0106 [0.27] 0.0067 [0.17] WITH PLATING (S) 0.0091 [0.23] 0.0051 [0.13] WITH PLATING 0.0080 [0.203] REF
4
0.1970 [5.00] 0.1890 [4.80]
0.0050 [0.127]
1
2
3
4
5
BASE METAL
0.0197 [0.50] BSC
SECTION A-A 0.1220 [3.10] 0.1142 [2.90] 0.0433 [1.10] MAX. 2 0.0374 [0.95] 0.0295 [0.75] 0.0098 [0.25] GAUGE PLANE 0.1220 [3.10] 0.1142 [2.90]
3 A
0.1220 [3.10] 0.0059 [0.15] 0.0020 [0.05] 0.0039 [0.10] MAX. (S) 0.1142 [2.90] (S) 0.0276 [0.70] 0.0157 [0.40]
3
0-6 A
NOTES: 1. Package dimensions conform to JEDEC specification MO-187BA. 2.
2 Does not include mold flash, protrusion or gate burrs, mold flash protrusions or gate burrs shall not exceed 0.15 mm per side. 3 4
3. 4.
Does not include interlead flash or protrusion. Interlead flash or protrusion shall not exceed 0.15 mm per side. Does not include dambar protrusion. Allowable dambar protrusion shall be 0.8 mm.
5. Lead span/stand-off height/coplanarity are considered as special characteristics. 6. Controlling dimensions in inches [mm].
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets 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 10
FN8095.2 March 29, 2006

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