DS3502 Rev 1 3/09 2 High-Voltage, NV, I C POT General Description Features The DS3502 is a 7-bit, nonvolatile (NV) digital poten- 128 Wiper Tap Points tiometer (POT) featuring an output voltage range of up to Full-Scale Resistance: 10k 2 15.5V. Programming is accomplished by an I C-compat- 2 I C-Compatible Serial Interface ible interface, which can operate at speeds of up to 400kHz. External voltages are applied at the RL and RH Address Pins Allow Up to Four DS3502s to Share 2 inputs to define the lowest and highest potentiometer the Same I C Bus outputs. Digital Operating Voltage: 2.5V to 5.5V Analog Operating Voltage: 4.5V to 15.5V Applications Operating Temperature: -40C to +100C TFT-LCD V Calibration COM 10-Pin SOP Package Instrumentation and Industrial Controls Mechanical POT Replacement Ordering Information PART TEMP RANGE PIN-PACKAGE DS3502U+ -40C to +100C 10 SOP Pin Configuration and Typical Operating Circuit appear at DS3502U+T&R -40C to +100C 10 SOP end of data sheet. +Denotes a lead(Pb)-free/RoHS-compliant package. T&R = Tape and reel. Functional Diagram RH 127 SDA 7-BIT WIPER REGISTER SCL 126 125 DS3502 DECODER LEVEL SHIFTER 7-BIT NONVOLATILE MEMORY 2 1 0 CONTROL CIRCUITRY AND A1 RL ADDRESS DECODE A0 RW Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.2 High-Voltage, NV, I C POT ABSOLUTE MAXIMUM RATINGS Voltage Range on V Relative to GND ...............-0.5V to +6.0V Operating Temperature Range .........................-40C to +100C CC Voltage Range on V+ Relative to GND ..................-0.5V to +17V Programming Temperature Range .........................0C to +70C Voltage Range on SDA, SCL, A0, A1 Storage Temperature Range .............................-55C to +125C Relative to GND.......-0.5V to (V + 0.5V), not to exceed 6.0V Soldering Temperature...........................Refer to the IPC/JEDEC CC Voltage Range on RH, RL, RW...................................-0.5V to V+ J-STD-020 Specification. Voltage Range Across RH and RL Pins .....................-0.5V to V+ Maximum RW Current...........................................................1mA Stresses beyond 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 beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING CONDITIONS (T = -40C to +100C) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V (Note 1) +2.5 +5.5 V CC V+ Voltage V+ V+ > V +4.5 +15.5 V CC Input Logic 1 0.7 x V CC V V IH (SCL, SDA, A0, A1) V + 0.3 CC Input Logic 0 0.3 x V -0.3 V IL (SCL, SDA, A0, A1) V CC Resistor Inputs (RL, RW, RH) V -0.3 +15.5 V RES Wiper Current I 1 mA WIPER ELECTRICAL CHARACTERISTICS (V = +2.5V to +5.5V, T = -40C to +100C, unless otherwise noted.) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V Supply Current I (Note 2) 0.2 3 mA CC CC Standby Supply Current I (Note 3) 10 A STBY V+ Bias Current I +1 A V+ Input Leakage (SDA, SCL, A0, A1) I -1 +1 A L Wiper Response Time t 1 s WRS Low-Level Output Voltage (SDA) V 3mA sink current 0.0 0.4 V OL I/O Capacitance C 5 10 pF I/O Power-Up Recall Voltage V (Note 4) 1.2 2.4 V POR Power-Up Memory Recall Delay t (Note 5) 3 ms D Wiper Resistance R V+ = 15.0V 5000 W End-to-End Resistance (RH to RL) R 10 k TOTAL R Tolerance T = +25C -20 +20 % TOTAL A CH, CL, CW Capacitance C 10 pF POT 2 DS3502