intersil X93155 handbook
Contents
1. MIN TYP MAX SYMBOL PARAMETER TEST CONDITIONS Note 7 Note 4 Note 7 UNIT li cs Vcc BV CS 0 120 200 250 uA Iu INC U D Input Leakage Current Vin Vss to Vec 1 pA Vin CS INC U D Input HIGH Voltage Vcc x 0 7 Vec 0 5 VIL CS INC U D Input LOW Voltage 0 5 Vcc x 0 1 Cin CS INC U D Input Capacitance Vec 5V Vin Vss Ta 25 C 10 pF Note 5 f 1MHz Endurance and Data Retention Circuit 2 SPICE Macro Model PARAMETER MIN UNIT Minimum endurance 200 000 Data changes per bit Data retention 100 Years Test Circuit 1 TEST POINT VHIRH AC Conditions of Test Input pulse levels OV to 5V utyfse fnd idles s ww BDTI C cofedter Si AC Electrical Specifications Over recommended operating conditions unless otherwise specified MIN TYP MAX SYMBOL PARAMETER Note 7 Note 4 Note 7 UNIT tcl CS to INC Setup 100 ns tip INC HIGH to U D Change 100 ns tpi U D to INC Setup 100 ns tiL INC LOW Period 1 us tiH INC HIGH Period 1 us tic INC Inactive to CS Inactive 1 us tCPH CS Deselect Time No Store 250 ns tCPH CS Deselect Time Store 10 ms teyc INC Cycle Time 2 us tR tF INC Input Rise and Fall time 500 us Note 5 tr Vcc Vcc Power up Rate 1 50 V ms Note 5 tWwR Store Cycle 5 10 ms 4 intersil FN8181 2 February 19 2008 X93155 AC Timing INC UID Power up and Power down Requirements There are no restrictions on the power up or power down conditions of Vcc and the voltages applie2. gt Ry 5 BIT NONVOLATILE ONE MEMORY OF THIRTY ITRANSFER RESISTOR Two 1 GATES ARRAY STORE AND DECODER CONTROL RECALL R CIRCUITRY L Vss Ground GENERAL RL DETAILED 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 logig level on the U D input a 1 i 2 UY ARAL BP he cp ntrols O f if fate DHF is incremented or d ntec 3 Ry Ry The Ry and R 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 Ry and R 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 intersil FN8181 2 Ss February 19 2008 X93155 Absolute Maximum Ratings Thermal Information Voltage on CS INC U D Ry Rp and Vcc Temperature under bias 000 65 C to 135 C with respect tO Vos wk eee eee 1V to 6 5V
3. Mode Selection cs INC UID MODE L A H Wiper Up L AL L Wiper Down _f H x Store Wiper Position H X X Standby Current ga L X No Store R TWAA BDC AJ L L Wiper Down not recommended Symbol Table WAVEFORM INPUTS OUTPUTS Must be Will be steady steady May change Will change from Low to from Low to High High May change Will change DNS from High to from High to Low Low Don t Care Changing Changes State Not Allowed Known N A Center Line is High Impedance Applications Information Electronic digitally controlled XDCP potentiometers provide three powerful application advantages 1 The variability and reliability of a solid state potentiometer 2 The flexibility of computer based digital controls 3 The retentivity of nonvolatile memory used for the storage of multiple potentiometer settings or data coml ntersi Two terminal variable resistor 6 intersil FN8181 2 February 19 2008 X93155 Low Voltage High Impedance Instrumentation Amplifier ViN VouT 50k 50k GAIN 1 10k RTOTAL U1 LT1467 Micro Power LCD Contrast Control 5V 240k 100k e 1 Vout 4 41 50K RIOTAL Vout 8 82V TO 13 23V 100k U1 LMC6042 om ntersi 1X93155 RTOTAL I L a Single Supply Variable Gain Amplifier 5V Vout TOTAL GAIN ok VIN U1 LMC6042 10k i X93155 cI RtoTa i gt
4. 90 10 tR resistor array to the wiper output Under the proper conditions the contents of the counter can be stored in nonvolatile 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 connection at that point to the wiper The wiper is connected to the R terminal forming a variable resistor from Ry to RL The wiper when at either fixed terminal acts like its mechanical equivalent and does not move beyond the last positiof Ghat is the counter does net wip around when AEE Si If the wiper is moved several positions multiple taps are connected to the wiper for up to 10us The 2 terminal resistance value for the device can temporarily change by a significant amount if the wiper is moved several positions When the device is powered down the last wiper position stored will be maintained in the nonvolatile memory When power is restored the contents of the memory are recalled and the wiper is set to the value last stored Instructions and Programming The INC U D and CS inputs control the movement of the wiper along the resistor array With CS set LOW the device is selected and enabled to respond to the U D and INC inputs HIGH to LOW transitions on INC will increment or decrement depending on the state of the U D input a five bit counter The output of this co
5. FN8181 2 7 Intersil February 19 2008 X93155 Mini Small Outline Plastic Packages MSOP M8 118 JEDEC MO 187AA 8 LEAD MINI SMALL OUTLINE PLASTIC PACKAGE E INCHES MILLIMETERS SYMBOL MIN MAX MIN MAX NOTES A 0 037 0 043 0 94 1 10 INDEX AREA 0 20 0 008 A B C A1 0 002 0 006 0 05 0 15 A2 0 030 0 037 0 75 0 95 b 0 010 0 014 0 25 0 36 9 c 0 004 0 008 0 09 0 20 D 0 116 0 120 2 95 3 05 3 y E1 0 116 0 120 2 95 3 05 4 SEATING PLANE C 0 026 BSC 0 65 BSC A A2 0 187 0 199 4 75 5 05 0 016 0 028 0 40 0 70 6 CEED SEATING L1 0 037 REF 0 95 REF la 0 10 0 004 C PLANE 8 8 7 ar Cte p a ome R 0 003 0 07 D gt 0 20 0 008 R1 0 003 0 07 SIDE VIEW 5 15 5 15 a 0 6 0 6 Rev 2 01 03 0 20 0 008 C D END VIEW NOTES e een BEE Com I nt er si JEDEC MO 18 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
6. shall not exceed 0 15mm 0 006 inch per side 5 Formed leads shall be planar with respect to one another within 0 10mm 0 004 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 and B to be determined at Datum plane H Controlling dimension MILLIMETER Converted inch dimen sions 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 ma
7. Storage temperature 0 000000 65 C to 150 C Maximum resistor current 0000 0000 eee 2mA Maximum reflow temperature 40s 055 240 C Pb free reflow profile 00020 02 ea ee see link below Recommended Operating Conditions http www intersil com pbfree Pb FreeReflow asp Temperature Range ind sthial ices kceaw cence eter eeaese dae 40 C to 85 C Supply Voltage VOO eae E r AEAU A a 5V 10 Note 6 CAUTION Do not operate at or near the maximum ratings listed for extended periods of time Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty NOTES 1 Absolute linearity is utilized to determine actual wiper resistance versus expected resistance Ryny actual Ry n expected 1 MI Maximum n 1 29 only Relative linearity is a measure of the error in step size between taps Ry n 1 RH n MI 0 5 MI n 1 29 only 1 MI Minimum Increment Rto7 31 Typical values are for Ta 25 C and nominal supply voltage Limits established by characterization and are not production tested When performing multiple write operations Vcc must not decrease by more than 150mV from its initial value NOOR WN Parts are 100 tested at 25 C Over temperature limits established by characterization and are not production tested Potentiometer Specifications Over recommended operating conditions unless otherwis
8. d to the potentiometer pins provided that Vcc is always more positive than or equal to Vy and V i e Vcc 2 VH_V_ The Vcc ramp rate specification is always in effect Pin Descriptions Ry and RL The Ry and R pins of the net are equivalent to the end terminals of mu VAN Ay AV ia 18 E S E and the mamu AURAL 34 of references the relative position j the terminal in relation to wiper movement direction selected by the U D input Up Down U D The U D input controls the direction of the wiper movement and whether the counter is incremented or decremented 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 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 Principles of Operation There are three sections of the X93155 the input control counter and decode section the nonvolatile 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 STORE tCPH 90
9. e stated MIN TYP MAX SYMBOL PARAMETER TEST CONDITIONS NOTES Note 7 Note 4 Note 7 UNIT RTOT End to end Resistance 37 5 50 A 62 5 kQ O Ae BDT C coH ntersH e Power Rati TOTAL 90 i mW Note 5 Noise Ref 1kHz 120 dBV Note 5 IR Potentiometer Current Note 5 0 6 mA Resolution 3 Absolute linearity Note 1 Ru n actual RH n expected 1 MI Note 3 Relative linearity Note 2 Ry n 1 1 RH n M I 0 5 MI Note 3 RToTAL Temperature Coefficient Note 5 35 ppm C CH CL Cw Potentiometer Capacitances See Circuit 2 SPICE Macro 10 10 25 pF Model on page 4 Note 5 DC Electrical Specifications Over recommended operating conditions unless otherwise specified MIN TYP MAX SYMBOL PARAMETER TEST CONDITIONS Note 7 Note 4 Note 7 UNIT loci Vcc Active Current Increment CS Vi U D Vi or Viy and 200 300 uA INC 0 4V max tcyc Icc2 Vcc Active Current Store CS Vip U D Vi or Viy and 1400 yA EEPROM Store INC Viy max twr Isp Standby Supply Current CS Vcc 0 3V U D and INC Vss 2 0 uA or Vec 0 3V ly cs Ves Vec 1 uA i s FN8181 2 3 Intersil February 19 2008 X93155 DC Electrical Specifications Over recommended operating conditions unless otherwise specified Continued
10. intersil Data Sheet 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 NC can be left unconnected or connected to any voltage between Vss and Vcc Ordering Information X93155 February 19 2008 FN8181 2 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 e Low power CMOS Vcc 5V 10 Active current 200pA typ Standby current 2 0uA max High reliability Endurance 200 000 data changes per bit Regis
11. ter data retention 100 years RTOTAL value 50kQ otntersi free available ROHS compliant PART NUMBER X93155UM8I AGM 5 10 X93155UMB8IZ Note DCH PART MARKING Vcc LIMITS V Rrotat KO TEMP RANGE C PACKAGE PKG DWG 40 to 85 8 Ld MSOP M8 118 40 to 85 8 Ld MSOP M8 118 Pb free 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 UP DOWN UID INCREMENT INC DEVICE SELECT Cs Pin Descriptions Vcc SUPPLY VOLTAGE 5 BIT UP DOWN COUNTER RH
12. unter is decoded to select one of thirty two wiper positions along the resistive array The value of the counter is stored in nonvolatile memory whenever CS transitions HIGH while the INC input is also HIGH In order to avoid an accidental store during power up CS must go HIGH with Vcc during initial power up When left open the cs pin is internally pulled up to Vcc by an internal 30kQ resistor The system may select the X93155 move the wiper and deselect the device without having to store the latest wiper 5 intersil FN8181 2 February 19 2008 X93155 position in nonvolatile memory After the wiper movement is performed as previously described and once the new position is reached the system must keep INC LOW while taking CS HIGH The new wiper position will be maintained until changed by the system or until a power up down cycle recalled the previously stored data In order to recall the stored position of the wiper on power up the cs pin must be held HIGH This procedure allows the system to always power up to a preset value stored in nonvolatile memory then during system operation minor adjustments could be made The adjustments might be based on user preference system parameter changes due to temperature drift or other system trim requirements The state of U D may be changed while CS remains LOW This allows the host system to enable the device and then move the wiper up and down until the proper trim is attained
13. y 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 8 intersil FN8181 2 February 19 2008
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intersil X93155 handbook