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CAT5114R-10TE13 Datasheet(PDF) 1 Page - Catalyst Semiconductor |
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CAT5114R-10TE13 Datasheet(HTML) 1 Page - Catalyst Semiconductor |
1 / 6 page 1 Advance Information © 2001 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice Doc. No. 25091-00 Rev. 3/28/01 M-1 CAT5114 32-Tap Digitally Programmable Potentiometer (DPP) FEATURES s 32 Position Linear Taper Potentiometer s Nonvolatile Wiper Storage s Low Power CMOS Technology s Single Supply Operation: 2.5V-6.0V s Increment Up/Down Serial Interface s Resistance Values: 10K, 20K, 50K and 100K Ω s Available in PDIP, SOIC, TSSOP and MSOP packages APPLICATIONS s Automated Product Calibration s Remote Control Adjustments s Offset, Gain and Zero Control Systems s Tamper-Proof Calibrations s Contrast, Brightness and Volume Controls s Motor Controls and Feedback Systems s Programmable Analog Functions new system values without effecting the stored setting. Wiper-control of the CAT5114 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 digitally programmable potentiometer can be used as a three-terminal resistive divider or as a two-terminal variable resistor. DPPs bring variability and programmability to a wide variety of applications including control, parameter adjustments, and signal processing. FUNCTIONAL DIAGRAM DESCRIPTION The CAT5114 is a single digitally programmable potentiometer (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 CAT5114 contains a 32-tap series resistor array connected between two terminals RH and RL. An up/ down counter and decoder that are controlled by three input pins, determines which tap is connected to the wiper, RW. 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 ONE OF THIRTY TWO DECODER 31 30 29 28 2 1 0 TRANSFER GATES RESISTOR ARRAY RH L R H V V L / / V W R W / 5-BIT NONVOLATILE MEMORY STORE AND RECALL CONTROL CIRCUITRY U /D INC CS Vcc VSS 5-BIT UP/DOWN COUNTER RH V W L R R H V V W L / / / GENERAL DETAILED Implementation of the Electronic Potentiometer ( INC) (U/ D) ( CS) Control and Memory INCREMENT UP/DOWN DEVICE SELECT Vcc (Supply Voltage) (Ground) VSS GENERAL RH V W L R R H V V W L / / / |
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