CAT5129

CAT5127, CAT5129 32-Tap Digitally Programmable Potentiometer (DPP™) FEATURES 32-position linear taper potentiometer Non-volatile EEPROM wiper storage Low standby current Single supply operation: 2.5V – 5.5V Increment Up/Down serial interface Resistance values: 10kΩ, 50kΩ and 100kΩ CAT5127 in tiny 8-lead 2mm x 2.5mm TDFN and MSOP packages CAT5129 in the 6-lead TSOT23 package DESCRIPTION The CAT5127/CAT5129 are single digitally programmable potentiometers (DPP™) designed as a electronic replacement for mechanical potentiometers and trim pots. Ideal for automated adjustments on high volume production lines, they are also well suited for applications where equipment requiring periodic adjustment is either difficult to access or located in a hazardous or remote environment. The CAT5127 contains a 32-tap series resistor array connected between two terminals RH and RL. The CAT5129 contains a 32-tap series resistor array connected between two terminals RH and GND. An up/down counter and decoder that are controlled by three input pins, determines which tap is connected to the wiper. The wiper setting, stored in nonvolatile memory, is not lost when the device is powered down and is automatically reinstated when power is returned. The wiper can be adjusted to test new system values without effecting the stored setting. Wiper-control of the CAT5127/CAT5129 is ¯¯ ¯ accomplished with three input control pins, CS, U/D, ¯¯¯ ¯¯¯ and INC. The INC input increments the wiper in the direction which is determined by the logic state of the ¯ ¯¯ U/D input. The CS input is used to select the device and also store the wiper position prior to power down. The devices are used as two-terminal variable resistors. DPPs bring variability and programmability to a wide variety of applications including control, parameter adjustments, and signal processing. APPLICATION Automated product calibration Remote control adjustments Offset, gain and zero control Tamper-proof calibrations Contrast, brightness and volume controls Motor controls and feedback systems Programmable analog functions For Ordering Information details, see page 12. FUNCTIONAL DIAGRAM CAT5127 VCC CAT5129 VCC RP (U/D) (INC) (CS) POR GND © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice RH (U/D) (INC) (CS) POR Control and Memory RH Control and Memory RL GND 1 Doc. No. 2127 Rev. B CAT5127, CAT5129 PIN CONFIGURATION MSOP/TDFN CAT5127 ¯¯¯ INC ¯ U/D RH GND 1 2 3 4 8 VCC ¯¯ 7 CS 6 RL 5 NC PIN DESCRIPTIONS Name Function ¯¯¯ INC ¯ U/D RH Increment Control Up/Down Control Potentiometer High Terminal No Connect Potentiometer Low Terminal Chip Select Supply Voltage CAT5127 CAT5129 MSOP/TDFN SOT23 1 2 3 4 5 6 7 8 4 3 5 2 1 6 GND Ground TSOT23-6 CAT5129 ¯¯ CS GND ¯ U/D 1 2 3 6 VCC 5 RH ¯¯¯ 4 INC NC RL ¯¯ CS VCC DEVICE DESCRIPTION ¯¯¯ INC: Increment Control Input ¯¯¯ The INC input moves the wiper in the up or down ¯ direction determined by the condition of the U/D input. ¯ U/D: Up/Down Control Input ¯ The U/D input controls the direction of the wiper ¯¯ movement. When in a high state and CS is low, any ¯¯¯ high-to-low transition on INC will cause the wiper to move one increment toward the RH terminal. When in ¯¯ a low state and CS is low, any high-to-low transition ¯¯¯ on INC will cause the wiper to move one increment towards the RL terminal. RH: High End Potentiometer Terminal RH is the high end terminal of the potentiometer. It is not required that this terminal be connected to a potential greater than the RL terminal. Voltage applied to the RH terminal cannot exceed the supply voltage, VCC or go below ground, GND. RL: Low End Potentiometer Terminal (CAT5127 only) RL is the low end terminal of the potentiometer. It is not required that this terminal be connected to a potential less than the RH terminal. Voltage applied to the RL terminal cannot exceed the supply voltage, VCC or go below ground, GND. RL and RH are electrically interchangeable. ¯¯ CS: Chip Select The chip select input is used to activate the control input of the device and is active low. When in a high ¯¯¯ ¯ state, activity on the INC and U/D inputs will not affect or change the position of the wiper. CAT5127 has an ¯¯ internal pull-up resistor on the CS input pin. VCC: Supply Input for the device. Doc. No. 2127 Rev. B 2 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5127, CAT5129 DEVICE OPERATION The CAT5127 operates like a digitally controlled variable resistor with RH and RL equivalent to the high and low terminals. There are 32 available tap positions including the resistor end points, RH and RL. There are 31 resistor elements connected in series between the RH and RL terminals. The CAT5129 operates like a digitally controlled variable resistor with RH equivalent to the high terminal. There are 32 available tap positions including the resistor end points, RH and GND. There are 31 resistor elements connected in series between the RH and GND terminals. ¯¯¯ ¯ Operation is controlled by three inputs, INC, U/D and ¯¯ CS. These inputs control a five-bit up/down counter whose output is decoded to select the wiper position. The selected wiper position can be stored in ¯¯¯ ¯¯ nonvolatile memory using the INC and CS inputs. ¯¯ With CS set LOW, the device is selected and will ¯ ¯¯¯ respond to the U/D and INC inputs. HIGH to LOW ¯¯¯ transitions on INC wil increment or decrement the ¯ wiper (depending on the state of the U/D input and five-bit counter). The wiper, when at either end terminal, acts like its mechanical equivalent and does not move beyond the last position. The value of the ¯¯ counter is stored in nonvolatile memory whenever CS ¯¯¯ transitions HIGH while the INC input is also HIGH. When the device is powered-down, the last stored wiper counter position is maintained in the nonvolatile memory. When power is restored, the contents of the memory are recalled and the counter is set to the value stored. ¯¯¯ With INC set low, the device may be de-selected and powered down without storing the current wiper position in nonvolatile memory. This allows the system to always power up to a preset value stored in nonvolatile memory. OPERATION MODES ¯¯¯ INC High to Low High to Low High Low X ¯¯ CS Low Low Low to High Low to High High ¯ U/D High Low X X X Operation Wiper toward H Wiper toward L/GND Store Wiper Position No Store, Return to Standby Standby RH CH CL RL/GND Variable Resistor Equivalent Circuit © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 3 Doc. No. 2127 Rev. B CAT5127, CAT5129 ABSOLUTE MAXIMUM RATINGS(1) Parameters Supply Voltage VCC to GND Inputs ¯¯ CS to GND ¯¯¯ INC to GND ¯ U/D to GND H to GND L to GND W to GND Ratings -0.5 to +7V -0.5 to VCC +0.5 -0.5 to VCC +0.5 -0.5 to VCC +0.5 -0.5 to VCC +0.5 -0.5 to VCC +0.5 -0.5 to VCC +0.5 Units V V V V V V V Parameters Operating Ambient Temperature Commercial (‘C’ or Blank suffix) Industrial (‘I’ suffix) Junction Temperature Storage Temperature Lead Soldering (10 sec max) Ratings 0 to 70 -40 to +85 +150 -65 to 150 +300 Units ºC ºC ºC ºC ºC RELIABILITY CHARACTERISTICS Symbol VZAP(2) ILTH(2) (3) TDR NEND Parameter ESD Susceptibility Latch-Up Data Retention Endurance Test Method MIL-STD-883, Test Method 3015 JEDEC Standard 17 MIL-STD-883, Test Method 1008 MIL-STD-883, Test Method 1003 Min 2000 100 100 1,000,000 Typ Max Units V mA Years Stores Notes: (1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability. (2) (3) (4) This parameter is tested initially and after a design or process change that affects the parameter. Latch-up protection is provided for stresses up to 100mA on address and data pins from -1V to VCC + 1V These parameters are periodically sampled and are not 100% tested. Doc. No. 2127 Rev. B 4 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5127, CAT5129 DC ELECTRICAL CHARACTERISTICS VCC = +2.5V to +5.5V unless otherwise specified Power Supply Symbol VCC Parameter Operating Voltage Range CAT5127 Supply Current (Increment) CAT5129 Supply Current (Increment) Supply Current (Write) Supply Current (Standby) VCC = 5.5V, f = 1MHz, IW = 0 VCC = 3.3V, f = 1MHz, IW = 0 VCC = 5.5V, f = 1MHz, IW = 0 VCC = 3.3V, f = 1MHz, IW = 0 Programming, VCC = 5.5V Programming, VCC = 3.3V ¯¯ CS = VCC - 0.3V ¯ ¯¯¯ U/D, INC = VCC or GND Conditions ¯ ¯¯¯ U/D, INC = VCC ¯¯ CS = VCC-0.3V VIN = VCC ¯ ¯¯¯ U/D, INC = 0 ¯¯ CS = 0 VIN = 0V 2.5V ≤ VCC ≤ 5.5V VCC x 0.7 -0.3 2 3.6V ≤ VCC ≤ 5.5V 0 0.8 V Min 300 150 0.35 Conditions Min 2.5 Typ Max 5.5 260 150 160 50 600 400 1 Units V µA µA µA µA µA µA µA ICC1 ICC2 ISB1(1) Logic Inputs Symbol IIH Parameter CAT5127 Input Leakage Current CAT5129 Input Leakage Current IIL VIH2 VIL2 VIH1 VIL1 CAT5127 Input Leakage Current CAT5129 Input Leakage Current CMOS High Level Input Voltage CMOS Low Level Input Voltage CAT5129 TTL High Level Input Voltage CAT5129 TTL Low Level Input Voltage Typ Max 1 1 1 -1 -120 -1 VCC + 0.3 VCC x 0.2 VCC Units µA µA µA µA µA µA V V V © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 5 Doc. No. 2127 Rev. B CAT5127, CAT5129 POTENTIOMETER CHARACTERISTICS Symbol RPOT RTOL VRH VRL RES INL DNL RWi TCRPOT TCRATIO VN Fc (3) (3) (3) (3) Parameter Potentiometer Resistance Pot Resistance Tolerance Voltage on RH pin Voltage on RL pin Resolution Integral Linearity Error Differential Linearity Error Wiper Resistance TC of Pot Resistance Ratiometric TC Noise Potentiometer Capacitances Frequency Response Conditions -10 Device -50 Device -00 Device Min Typ 10 50 100 Max Units kΩ ± 20 0 0 3.2 0.5 0.25 VCC = 5V VCC = 2.5V 70 150 ±30 ±3 100kHz / 1kHz Passive Attenuator, 10kΩ 8/24 8/8/25 1.7 1 0.5 100 200 ±300 20 VCC VCC % V V % LSB LSB Ω Ω ppm/ºC ppm/ºC nV/√Hz pF MHz CH/CL/CW (3) Notes: (1) Latch-up protection is provided for stresses up to 100mA on address and data pins from -1V to VCC + 1V (2) IW = source or sink (3) These parameters are periodically sampled and are not 100% tested. Doc. No. 2127 Rev. B 6 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5127, CAT5129 AC TEST CONDITIONS VCC Range Input Pulse Levels Input Rise and Fall Times Input Reference Levels 2.5V ≤ VCC ≤ 5.5V 0.2VCC to 0.7VCC 10ns 0.5VCC AC OPERATING CHARACTERISTICS VCC = +2.5V to +5.5V, VH = VCC, VL = 0V, unless otherwise specified Symbol tCI tDI tID tIL tIH tIC tCPH tCPH tIR tCYC tR, tF tPU (2) (2) Parameter ¯¯ ¯¯¯ CS to INC Setup ¯ ¯¯¯ U/D to INC Setup ¯ ¯¯¯ U/D to INC Hold ¯¯¯ INC LOW Period ¯¯¯ INC HIGH Period ¯¯¯ INC Inactive to CS Inactive ¯¯ CS Deselect Time (NO STORE) ¯¯ CS Deselect Time (STORE) ¯¯¯ INC to RH Change ¯¯¯ INC Cycle Time ¯¯¯ INC Input Rise and Fall Time Power-up to Wiper Stable Store Cycle Min 100 50 100 250 250 1 100 10 Typ(1) Max Units ns ns ns ns ns µs ns ms 1 1 5 500 1 µs µs µs ms ms tWR 2 5 A.C. TIMING CS tCYC (store) tCI INC tIL tIH tIC tCPH 90% 10% 90% tDI U/D tID tF tR tIR RH Notes: (1) (2) (3) MI(3) Typical values are for TA = 25ºC and nominal supply voltage. This parameter is periodically sampled and not 100% tested. MI in the A.C. Timing diagram refers to the minimum incremental change in the W output due to a change in the wiper position. © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 7 Doc. No. 2127 Rev. B CAT5127, CAT5129 APPLICATION INFORMATION Potentiometer Configurations (a) resistive divider (b) variable resistance (c) two-port Applications V1 (-) 3 + – A1 1 R3 R4 +5V 2 8 1 7 VO 4 +5V RA R1 6 2 DPP +5V 8 R1 R2 R2 9 10 +5V – + 4 A3 8 2 1 7 4 11 } } RB pRPOT (1-p)RPOT 4 7 8 3 CAT5127 A2 7 R2 3 555 6 2 1 0.01µF 5 CAT5127 V2 (+) 6 5 – + R3 R4 +2.5V 0.01µF 0.003µF C Programmable Instrumentation Amplifier Programmable Sq. Wave Oscillator (555) +5V 100kΩ 2 1 7 V O (REG) 8 CAT5127 VOUT SHUTDOWN 1µF SD GND FB 1.23V 6 } } VIN (UNREG) 2952 11kΩ R1 0.1µF 4 6.8µF 330 +5V 2 pR (1-p)R 330 1M +5V 3 +5V 2 1 7 4 8 3 R2 820 IS – 7 4 6 A1 2 – R3 CAT5127 6 3+ + 3 LT1097 +2.5V 76 VO 4 A2 10k Programmable Voltage Regulator Programmable I to V convertor Doc. No. 2127 Rev. B 8 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5127, CAT5129 PACKAGE OUTLINES 8-LEAD MSOP E1 E e e e D GAUGE PLANE A2 A c L2 θ b A1 L L1 SYMBOL A A1 A2 b c D E E1 e L L1 L2 Ө MIN 0.05 0.75 0.28 2.90 4.80 2.90 0.35 NOM 0.10 0.85 0.33 3.00 4.90 3.00 0.65 BSC 0.45 MAX 1.1 0.15 0.95 0.38 3.10 5.00 3.10 0.55 0º 6º For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) (2) (3) All dimensions are in millimeters. Angles in degrees. Complies with JEDEC Specification MS-187. Stand off height/coplanarity are considered as special characteristics. © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 9 Doc. No. 2127 Rev. B CAT5127, CAT5129 8-LEAD TDFN (2.5 x 2.0mm) SYMBOL A A1 A3 b D D2 E E2 e L MIN 0.70 0.00 0.20 1.90 1.40 2.40 1.20 0.20 NOM 0.75 0.02 0.20 REF 0.25 2.00 1.50 2.50 1.30 0.50 TYP 0.30 MAX 0.80 0.05 0.30 2.10 1.60 2.60 1.40 0.40 A1 A3 Notes: (1) (2) All dimensions are in millimeters. Angles in degrees. Complies with JEDEC specification MO-229. For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Doc. No. 2127 Rev. B 10 © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT5127, CAT5129 6-LEAD TSOT-23 e e E E1 e1 D GAUGE PLANE L2 b A1 L L1 A2 A c θ SYMBOL A A1 A2 b c D E E1 e e1 L L1 L2 θ MIN — 0.01 0.80 0.30 0.12 2.70 0.30 NOM — 0.05 0.87 — 0.15 2.90 BSC 2.80 1.60 BSC 0.95 BSC 1.90 BSC 0.40 0.60 REF 0.25 BSC MAX 1.00 0.1 0.90 0.45 0.20 2.90 0.50 0° 8° For current Tape and Reel information, download the PDF file from: http://www.catsemi.com/documents/tapeandreel.pdf. Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC specification MO-193. © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 11 Doc. No. 2127 Rev. B CAT5127, CAT5129 EXAMPLE OF ORDERING INFORMATION Prefix CAT Device # 5127 Suffix Z I -10 – G T3 Company ID Product Number 5127 5129 Temperature Range I = Industrial (-40ºC to 85ºC) Resistance -10: 10k ohms -50: 50k ohms -00: 100k ohms Tape & Reel T: Tape & Reel 3: 3000/Reel Lead Finish Blank: Matte-Tin G: NiPdAu Package Z: MSOP TD: TSOT23 ZD7: TDFN Notes: (1) (2) (3) (4) All packages are RoHS-compliant (Lead-free, Halogen-free). The standard lead finish is Matte-Tin. The device used in the above example is a CAT5127ZI-10-GT3 (MSOP, Industrial Temperature range, 10kΩ, NiPdAu, Tape & Reel). For additional package and temperature options, please contact your nearest Catalyst Semiconductor Sales office. ORDERING INFORMATION Device CAT5127 Ordering Part Number CAT5127ZI-10-T3 CAT5127ZI-50-T3 CAT5127ZI-00-T3 (5) (5) Resistor [kΩ] 10 50 100 10 50 100 10 50 100 10 50 100 10 50 100 Top Marking ABPU ABPV ABPY ABNA ABNB ABNK HB HC HD PDym PEym PFym PAym (6) (6) Pin/Package MSOP-8 MSOP-8 MSOP-8 MSOP-8 MSOP-8 MSOP-8 TDFN-8 TDFN-8 TDFN-8 TSOT23-6 TSOT23-6 TSOT23-6 TSOT23-6 TSOT23-6 TSOT23-6 Part Per Reel 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 CAT5127ZI-10-GT3 CAT5127ZI-50-GT3 CAT5127ZI-00-GT3 (5) (5) CAT5127ZD7I-10-GT3 CAT5127ZD7I-50-GT3 CAT5127ZD7I-00-GT3 CAT5129 CAT5129TDI-10-T3 CAT5129TDI-50-T3 CAT5129TDI-00-T3 (5) (5) (5) (5) (6) (6) (6) (6) CAT5129TDI-10-GT3 CAT5129TDI-50-GT3 CAT5129TDI-00-GT3 Notes: (5) (6) Contact factory for availability. y = Production year (digit), m = Production month (digit). (5) (5) PBym PCym © 2007 Catalyst Semiconductor, Inc. Characteristics subject to change without notice 12 Doc. No. 2127 Rev. B REVISION HISTORY Date 12/18/06 02/23/07 Rev. A B Reason Initial Issue Updated the Functional Diagram Updated the DC Electrical Characteristics table Copyrights, Trademarks and Patents Trademarks and registered trademarks of Catalyst Semiconductor include each of the following: Beyond Memory™, DPP™, EZDim™, MiniPot™, and Quad-Mode™ Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products. CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES. Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where personal injury or death may occur. Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled "Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale. Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate typical semiconductor applications and may not be complete. Catalyst Semiconductor, Inc. Corporate Headquarters 2975 Stender Way Santa Clara, CA 95054 Phone: 408.542.1000 Fax: 408.542.1200 www.catsemi.com Document No: 2127 Revision: B Issue date: 02/23/07