X9428WVI

The X9428WVI is one of the X9428 series.The X9428 integrates a digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated microcircuit.The X9428WVI digitally controlled potentiometer is implemented using 63 resistive elements in a series array. Between each element are tap points connected to the wiper terminal through switches. The position of the wiper on the array is controlled by the user through the 2-wire bus interface. Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and 4 nonvolatile Data Registers (DR0:DR3) that can be directly written to and read by the user. The contents of the WCR controls the position of the wiper on the resistor array through the switches. Power-up recalls the contents of DR0 to the WCR.

Features of the X9428WVI are:(1)Solid state potentiometer; (2)2-wire serial interface; (3)Register oriented format;Direct Read/Write/Transfer Wiper Position;Store as many as Four Positions per  Potentiometer ; (4)Power supplies;VCC = 2.7V to 5.5V;V+ = 2.7V to 5.5V;V = -2.7V to -5.5V; (5)Low power CMOS;Standby current < 1A;Ideal for Battery Operated Applications; (6)High reliability;Endurance100,000 Data Changes per Bit per  Register;Register Data Retention100 years; (7)4-bytes of nonvolatile memory; (8)10k resistor array; (9)Resolution: 64 taps each potentiometer; (10)SOIC and TSSOP packages.

The absolute maximum ratings of the X9428WVI can be summarized as:(1)Temperature under bias: -65°C to +135°C; (2)Storage temperature : -65°C to +150°C; (3)Voltage on SDA, SCL or any address input with respect to VSS:-1V to +7V; (4)Voltage on V+ (referenced to VSS):10V; (5)Voltage on V- (referenced to VSS):-10V; (6)(V+) - (V-) :12V; (7)Any VH/RH :V+; (8)Any VL/RL:V-; (9)Lead temperature (soldering, 10 seconds):300°C ; (10)IW (10 seconds):±12mA.If you want to know more information such as the electrical AC characteristics of X9428WVI ,please download the datasheet in www.seekdatasheet.com .