ISL23711 ® Volatile Digitally Controlled Potentiometer (XDCP™) Data Sheet August 16, 2005 Terminal Voltage ±3V or ±5V, 128 Taps I2C Serial Interface The Intersil ISL23711 is a digitally controlled potentiometer (XDCP). The device consists of a resistor array, wiper switches, and a control section. The wiper position is controlled by an I2C interface. The potentiometer is implemented by a resistor array composed of 127 resistive elements and a wiper switching network. The wiper terminal can be connected to either end of the resistor array or at any one of the Tap Positions in between, providing 128 steps of resolution between RL and RH. The “position” of the wiper is determined by the value assigned to the volatile Wiper Register (WR). The WR can be directly written to and read from using standard I2C interface protocol. The device is available in either a 10kΩ or 50kΩ version. The device can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of applications including: FN6127.0 Features • I2C Serial Interface with Hardwire Slave Address Allows up to Four Devices • DCP Terminal Voltage, from V- to VCC • 127 Resistive Elements - Typical RTOTAL tempco ±50ppm/°C - Typical ratiometric tempco ±4ppm/°C - End to end resistance range ±20% - Wiper resistance = 70Ω typ at VCC = 3.3V • Low Power CMOS - Standby current, 500nA max - Active current, 200µA max - VCC = 2.7V to 5.5V - V- = -2.7V to -5.5V • RTOTAL Values = 10kΩ, 50kΩ • Volatile Wiper Storage • Industrial and Automotive Control • Package - 10 Ld MSOP • Parameter and Bias Adjustments • Pb-Free Plus Anneal Available (RoHS Compliant) • Amplifier Bias and Control Pinout ISL23711 (10 LD MSOP) TOP VIEW Ordering Information PART NUMBER (BRAND) RESISTANCE OPTION (Ω) TEMP RANGE (°C) ISL23711WIU10Z (AOE) (Notes 1, 2) 10K -40 to +85 ISL23711UIU10Z (AOD) (Notes 1, 2) 50K -40 to +85 PACKAGE PKG. DWG. # 10 Ld MSOP (Pb-Free) M10.118 10 Ld MSOP (Pb-Free) M10.118 NOTES: SDA 1 10 SCL V- 2 9 VCC GND 3 8 RL A1 4 7 RW A0 5 6 RH 1. Add “-T” suffix for tape and reel. 2. 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. 1 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, Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL23711 Block Diagram SDA SCL GND VCC 7-BIT WIPER REGISTER (VOLATILE) RH 127 126 SDA 125 RH SCL 124 INTERFACE AND CONTROL A1 RW ONE OF 128 A0 TRANSFER GATES RESISTOR ARRAY DECODER RL 2 RECALL CONTROL CIRCUITRY VSIMPLE BLOCK DIAGRAM A1 A0 1 0 RL RW SLAVE ADDRESS DECODE DETAILED BLOCK DIAGRAM Pin Descriptions PIN NUMBER 1 SYMBOL SDA DESCRIPTION Data I/O for I2C serial interface. It has an open drain output and may be wire ORed with other open drain active low outputs. 2 V- Negative supply voltage for the potentiometer wiper control. 3 GND 4 A1 A1 and A0 are address select pins used to set the slave address for the I2C serial interface. 5 A0 A1 and A0 are address select pins used to set the slave address for the I2C serial interface. 6 RH A fixed terminal for one end of the potentiometer resistor. 7 RW The wiper terminal which is equivalent to the movable terminal of a potentiometer. 8 RL A fixed terminal for one end of the potentiometer resistor. 9 VCC Positive logic supply voltage. 10 SCL Clock input for the I2C serial interface. 2 Ground. Should be connected to a digital ground FN6127.0 August 16, 2005 ISL23711 Absolute Maximum Ratings Thermal Information Temperature under bias . . . . . . . . . . . . . . . . . . . . . .-65°C to +135°C Storage temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Voltage on SDA, SCL, A0, and A1 with Respect to GND . . . . . . . . . . . . . . . . . . . . . -0.3 to VCC+0.3V Voltage on V- (referenced to GND) . . . . . . . . . . . . . . . . . . . . . . . -6V ∆V = |V(RH)-V(RL)| . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12V Lead Temperature (soldering 10s) . . . . . . . . . . . . . . . . . . . . . . 300°C IW (10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±6mA VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V RH, RL, RW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V- to VCC ESD Rating (MIL-STD-883, Method 3015.7 . . . . . . . . . . . . . . .>2kV Thermal Resistance (Typical, Note 3) θJA (°C/W) MSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Recommended Operating Conditions Temperature Range (Industrial) . . . . . . . . . . . . . . . . .-40°C to +85°C VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2.7V to -5.5V CAUTION: 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. NOTE: 3. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details. Analog Specifications SYMBOL RTOTAL VRH,VRL RW CH/CL/CW ILkgDCP Over recommended operating conditions unless otherwise stated. PARAMETER RH to RL Resistance TEST CONDITIONS MIN TYP (Note 1) MAX UNIT W option 10 kΩ U option 50 kΩ RH to RL Resistance Tolerance -20 +20 % RH, RL Terminal Voltage V- VCC V 200 Ω Wiper Resistance V- = -5.5V; VCC = +5.5V Wiper current = (VCC - V-)/RTOTAL 70 Potentiometer Capacitance (Note 13) Leakage on RH, RL, RW pins 10/10/25 Voltage at pins; V- to VCC -1 0.1 pF 1 µA -1 1 LSB (Note 2) -0.5 0.5 LSB (Note 2) LSB (Note 2) VOLTAGE DIVIDER MODE (V- @ RL; VCC @ RH; Voltage at RW = VRW unloaded) INL (Note 6) Integral Non-linearity DNL (Note 5) Differential Non-linearity W, U options ZSerror (Note 3) Zero-scale Error W option 0 1 4 U option 0 0.5 2 FSerror (Note 4) Full-scale Error W option -4 -1 0 U option -2 -0.5 0 TCV (Notes 7, 13) Ratiometric Temperature Coefficient DCP register set from 16 to 120d, T = -40°C to +85°C ±4 LSB (Note 2) ppm/°C RESISTOR MODE (Measurements between RW and RL with RH not connected, or between RW and RH with RL not connected) RINL (Note 11) Integral Non-linearity RDNL (Note 10) Differential Non-linearity Roffset (Note 9) Offset TCR Resistance Temperature Coefficient (Notes 12, 13) 3 DCP register set between 20 hex and 7F hex. Monotonic over all tap positions -1 1 MI (Note 8) -0.5 0.5 MI (Note 8) DCP register set to 00 hex, W option 0 2 5 MI (Note 8) DCP register set to 00 hex, U option 0 0.5 2 MI (Note 8) DCP register set from 16 to 127d, T = -40°C to +85°C ±50 ppm/°C FN6127.0 August 16, 2005 ISL23711 Operating Specifications Over the recommended operating conditions unless otherwise specified. SYMBOL ICC1 PARAMETER VCC Supply Current, Volatile Write/Read UNIT 200 µA -1 µA VCC = +5.5V, I2C Interface in Standby State 500 nA VCC = +3.6V, I2C Interface in Standby State 300 nA V- Supply Current, Volatile Write/Read fSCL = 400kHz; SDA = Open; (for I2C, Active, Read and Write states only) ISB VCC Current (Standby) ILkgDig tDCP (Note 13) Vpor MIN fSCL = 400kHz; SDA = Open; (for I2C, Active, Read and Write states only) IV- IV-SB TYP (Note 1) MAX TEST CONDITIONS -100 V- = -5.5V, I2C Interface in Standby State -500 V- = -2.7V, I2C Interface in Standby State -300 -1 nA Leakage Current, at Pins SDA, SCL, A0, and A1 Voltage at pin from GND to VCC -10 10 µA DCP Wiper Response Time SCL falling edge of last bit of DCP Data Byte to wiper change V- Current (Standby) Power-on Recall for VCC nA 1 µs 2.5 V SERIAL INTERFACE SPECS VIL A0, A1, SDA, and SCL Input Buffer LOW Voltage -0.3 0.3*VCC V VIH A0, A1, SDA, and SCL Input Buffer HIGH Voltage 0.7*VCC VCC+ 0.3 V Hysteresis VOL SDA and SCL Input Buffer Hysteresis V 0.05* VCC 0.4 V A0, A1, SDA, and SCL Pin Capacitance 10 pF SCL Frequency 400 kHz tIN Pulse Width Suppression Time at SDA Any pulse narrower than the max spec is and SCL Inputs suppressed 50 ns tAA SCL Falling Edge to SDA Output Data Valid SCL falling edge crossing 30% of VCC, until SDA exits the 30% to 70% of VCC window 900 ns tBUF Time the Bus Must be Free Before the Start of a New Transmission SDA crossing 70% of VCC during a STOP condition, to SDA crossing 70% of VCC during the following START condition 1300 ns tLOW Clock LOW Time Measured at the 30% of VCC crossing 1300 ns tHIGH Clock HIGH Time Measured at the 70% of VCC crossing 600 ns tSU:STA START Condition Setup Time SCL rising edge to SDA falling edge. Both crossing 70% of VCC 600 ns tHD:STA START Condition Hold Time From SDA falling edge crossing 30% of VCC to SCL falling edge crossing 70% of VCC 600 ns tSU:DAT Input Data Setup Time From SDA exiting the 30% to 70% of VCC window, to SCL rising edge crossing 30% of VCC 100 ns tHD:DAT Input Data Hold Time From SCL rising edge crossing 70% of VCC to SDA entering the 30% to 70% of VCC window 0 ns tSU:STO STOP Condition Setup Time From SCL rising edge crossing 70% of VCC, to SDA rising edge crossing 30% of VCC 600 ns tHD:STO STOP Condition Setup Time From SDA rising edge to SCL falling edge. Both crossing 70% of VCC 600 ns Cpin (Note 14) fSCL SDA Output Buffer LOW Voltage, Sinking 4mA 4 0 FN6127.0 August 16, 2005 ISL23711 Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued) SYMBOL TYP (Note 1) TEST CONDITIONS MIN Output Data Hold Time From SCL falling edge crossing 30% of VCC, until SDA enters the 30% to 70% of VCC window 0 tR (Note 14) SDA, SCL, A0, A1 Rise Time From 30% to 70% of VCC 20 + 0.1 * Cb 250 ns tF (Note 14) SDA, SCL, A0, A1 Fall Time From 70% to 30% of VCC 20 + 0.1 * Cb 250 ns Cb (Note 14) Capacitive Loading of SDA or SCL Total on-chip and off-chip 10 400 pF Rpu (Note 14) SDA and SCL Bus Pull-up Resistor Off-chip Maximum is determined by tR and tF For Cb = 400pF, max is about 2~2.5kΩ For Cb = 40pF, max is about 15~20kΩ 1 kΩ tSU:A A0, A1 Setup Time Before START condition 600 ns tHD:A A0, A1 Hold Time After STOP condition 600 ns tDH PARAMETER MAX UNIT ns SDA vs SCL Timing tHIGH tF SCL tLOW tR tSU:DAT tSU:STA tHD:DAT tSU:STO tHD:STA SDA (INPUT TIMING) tAA tDH tBUF SDA (OUTPUT TIMING) A0, A1 Pin Timing STOP START SCL Clk 1 SDA IN tSU:A tHD:A A0, A1 5 FN6127.0 August 16, 2005 ISL23711 NOTES: 1. Typical values are for TA = 25°C and ±5V supply voltage. 2. LSB: [V(RW)127 – V(RW)0] / 127. V(RW)127 and V(RW)0 are V(RW) for the DCP register set to 7F 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 – V-) / LSB. 4. FS error = [V(RW)127 – VCC] / LSB. 5. DNL = [V(RW)i – V(RW)i-1] / LSB-1, for i = 1 to 127. i is the DCP register setting. 6. INL = V(RW)i – (i • LSB – V(RW)0) for i = 1 to 127. Max ( V ( RW ) i ) – Min ( V ( RW ) i ) 10 6 7. TC V = ---------------------------------------------------------------------------------------------- × ----------------[ Max ( V ( RW ) i ) + Min ( V ( RW ) i ) ] ⁄ 2 125°C for i = 16 to 120 decimal, Max( ) is the maximum value of the wiper voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range. 8. MI = |R127 – R0| / 127. R127 and R0 are the measured resistances for the DCP register set to 7F hex and 00 hex respectively. 9. Roffset = R0 / MI, when measuring between RW and RL. Roffset = R127 / MI, when measuring between RW and RH. 10. RDNL = (Ri – Ri-1) / MI, for i = 16 to 127. 11. RINL = [Ri – (MI • i) – R0] / MI, for i = 16 to 127. 6 [ Max ( Ri ) – Min ( Ri ) ] 10 12. TC R = ---------------------------------------------------------------- × ----------------[ Max ( Ri ) + Min ( Ri ) ] ⁄ 2 125°C for i = 16 to 127, Max( ) is the maximum value of the resistance and Min ( ) is the minimum value of the resistance over the temperature range. 13. This parameter is not 100% tested. 14. These are I2C specific parameters and are not directly tested, however they are used during device testing to validate device specification. Test Circuit RW Rw is the wiper terminal and is equivalent to the movable terminal of a mechanical potentiometer. The position of the wiper within the array is determined by the control inputs. TEST POINT BUS INTERFACE PINS RW Serial Data Input/Output (SDA) FORCE CURRENT The SDA is a bidirectional serial data input/output pin for the I2C interface. It receives device address, operation code, wiper register address and data from an I2C external master device at the rising edge of the serial clock SCL, and it shifts out data after each falling edge of the serial clock SCL. Equivalent Circuit RTOTAL RL RH CW CH CL SDA requires an external pull-up resistor, since it’s an open drain output. Serial Clock (SCL) This input is the serial clock of the I2C serial interface. RW Pin Descriptions Potentiometer Pins RH AND RL The high (RH) and low (RL) terminals of the ISL23711 are equivalent to the fixed terminals of a mechanical potentiometer. The terminology of RL and RH references the relative position of the terminal in relation to wiper movement direction selected by the I2C serial input and not the voltage potential on the terminal. 6 Device Address (A1-A0) The Address inputs are used to set the least significant 2 bits of the 7-bit I2C interface slave address. A match in the slave address serial data stream must be made with the Address input pins in order to initiate communication with the ISL23711. A maximum of 4 ISL23711 devices may occupy the I2C serial bus. Principles of Operation The ISL23711 is an integrated circuit incorporating one DCP with It’s associated register, and an I2C serial interface providing direct communication between a host and the potentiometer and memory. The resistor array is comprised FN6127.0 August 16, 2005 ISL23711 of 127 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 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. The electronic switches on the device operate in a “make before break” mode when the wiper changes tap positions. DCP Description The DCP is implemented with a combination of resistor elements and CMOS switches. The physical ends of the DCP are equivalent to the fixed terminals of a mechanical potentiometer (RH and RL pins). The RW pin is connected to intermediate nodes, and is equivalent to the wiper terminal of a mechanical potentiometer. The position of the wiper terminal is controlled by a 7-bit volatile Wiper Register (WR). When the WR contains all zeroes (00h), the wiper terminal (RW) is closest to its “Low” terminal (RL). When the WR contains all ones (7Fh), the wiper terminal (RW) is closest to its “High” terminal (RH). As the value of the WR increases from all zeroes (0 decimal) to all ones (127 decimal), the wiper moves monotonically from the position closest to RL to the position 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 ISL23711 is being powered up, the WR is reset to 20h (64 decimal), which locates the RW at the center between RL and RH. indicating START and STOP conditions (See Figure 1). On power-up of the ISL23711 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 ISL23711 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 1). 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 1). A STOP condition at the end of a read operation, or at the end of a write operation to volatile bytes only 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 2). The ISL23711 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 ISL23711 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 The WR can be read or written directly using the I2C serial interface as described in the following sections. Memory Description 0 • A read operation to address 0 outputs the value of the volatile WR. 1 0 (MSB) 1 0 A1 A0 R/W (LSB) • A write operation to address 0 only writes to the volatile WR. Write Operation I2C Serial Interface 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 ISL23711 responds with an ACK. The ISL23711 supports a bidirectional bus oriented protocol. The protocol defines any device that sends data onto the 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 ISL23711 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. Protocol Conventions Data states on the SDA line can change only during SCL LOW periods. SDA state changes during SCL HIGH are reserved for 7 Read Operation A Read operation is initiated by a master using the following sequence: a START, the Identification byte (slave address) with the R/W bit set to “1”. At the moment of the first acknowledge by the ISL23711 (slave device), the mastertransmitter becomes a master receiver and receives the data byte from the slave-transmitter.The Master receives the data byte and issues a non-acknowledge (SDA is HIGH), then a STOP to terminate the read operation. Since the ISL 23711 has just one WR, it will transmit only one byte (see Figure 4). FN6127.0 August 16, 2005 ISL23711 SCL SDA START DATA STABLE DATA CHANGE DATA STABLE STOP FIGURE 1. VALID DATA CHANGES, START, AND STOP CONDITIONS SCL FROM MASTER 1 8 9 SDA OUTPUT FROM TRANSMITTER HIGH IMPEDANCE HIGH IMPEDANCE SDA OUTPUT FROM RECEIVER START ACK FIGURE 2. ACKNOWLEDGE RESPONSE FROM RECEIVER WRITE SIGNALS FROM THE MASTER SIGNAL AT SDA S T A R T IDENTIFICATION BYTE ADDRESS BYTE 0 1 0 1 0 A1 A0 0 0 0 0 0 0 0 0 0 SIGNALS FROM THE ISL23711 A C K A C K S T O P DATA BYTE A C K FIGURE 3. BYTE WRITE SEQUENCE SIGNALS FROM THE MASTER S T A IDENTIFICATION R BYTE WITH T R/W=1 SIGNAL AT SDA SIGNALS FROM THE SLAVE S T O P 0 1 0 1 0 A1 A0 1 A C K DATA BYTE READ BY MASTER FIGURE 4. READ SEQUENCE 8 FN6127.0 August 16, 2005 ISL23711 Mini Small Outline Plastic Packages (MSOP) N M10.118 (JEDEC MO-187BA) 10 LEAD MINI SMALL OUTLINE PLASTIC PACKAGE E1 INCHES E -B- INDEX AREA 1 2 0.20 (0.008) A B C TOP VIEW 4X θ 0.25 (0.010) R1 R GAUGE PLANE SEATING PLANE -CA 4X θ A2 A1 b -H- 0.10 (0.004) L SEATING PLANE C MIN MAX MIN MAX NOTES A 0.037 0.043 0.94 1.10 - A1 0.002 0.006 0.05 0.15 - A2 0.030 0.037 0.75 0.95 - b 0.007 0.011 0.18 0.27 9 c 0.004 0.008 0.09 0.20 - D 0.116 0.120 2.95 3.05 3 E1 0.116 0.120 2.95 3.05 4 0.020 BSC 0.20 (0.008) C C a SIDE VIEW CL E1 0.20 (0.008) C D - 0.187 0.199 4.75 5.05 - L 0.016 0.028 0.40 0.70 6 0.037 REF N -A- 0.50 BSC E L1 e D SYMBOL e L1 MILLIMETERS 0.95 REF 10 R 0.003 R1 - 10 - 0.07 0.003 - θ 5o 15o α 0o 6o 7 - - 0.07 - - 5o 15o - 0o 6o -B- Rev. 0 12/02 END VIEW NOTES: 1. These package dimensions are within allowable dimensions of JEDEC MO-187BA. 2. Dimensioning and tolerancing per ANSI Y14.5M-1994. 3. Dimension “D” does not include mold flash, protrusions or gate burrs and are measured at Datum Plane. Mold flash, protrusion and gate burrs shall not exceed 0.15mm (0.006 inch) per side. 4. Dimension “E1” does not include interlead flash or protrusions and are measured at Datum Plane. - H - Interlead flash and protrusions shall not exceed 0.15mm (0.006 inch) per side. 5. Formed leads shall be planar with respect to one another within 0.10mm (.004) at seating Plane. 6. “L” is the length of terminal for soldering to a substrate. 7. “N” is the number of terminal positions. 8. Terminal numbers are shown for reference only. 9. Dimension “b” does not include dambar protrusion. Allowable dambar protrusion shall be 0.08mm (0.003 inch) total in excess of “b” dimension at maximum material condition. Minimum space between protrusion and adjacent lead is 0.07mm (0.0027 inch). 10. Datums -A -H- . and - B - to be determined at Datum plane 11. Controlling dimension: MILLIMETER. Converted inch dimensions are for reference only 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 9 FN6127.0 August 16, 2005