WMS7170_05 WINBOND [Winbond], WMS7170_05 Datasheet
WMS7170_05
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WMS7170_05 Summary of contents
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WMS7170/1 NONVOLATILE DIGITAL POTENTIOMETERS WITH UP/DOWN (3-WIRE) INTERFACE, 10KOHM, 50KOHM, 100KOHM RESISTANCE 100 TAPS WITH OPTIONAL OUTPUT BUFFER PRELIMINARY Publication Release Date: April 21, 2005 - 1 - Revision 1.1 ...
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GENERAL DESCRIPTION The WMS717x is a 100 non-volatile linear digital potentiometers available in 10KΩ, 50KΩ and 100KΩ resistance values. The WMS7170/1 can be used as a three-terminal potentiometer two terminal variable resistor in a wide variety ...
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BLOCK DIAGRAM INC Up/Down CS Serial U/D Interface NV Memory V SS Control FIGURE 1 – WMS7170 BLOCK DIAGRAM (Rheostat Mode) INC Up/Down CS Serial U/D Interface NV Memory V SS Control FIGURE 2 – WMS7171 BLOCK DIAGRAM (Divider ...
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TABLE OF CONTENTS 1. GENERAL DESCRIPTION.................................................................................................................. 2 2. FEATURES ......................................................................................................................................... 2 3. BLOCK DIAGRAM .............................................................................................................................. 3 4. TABLE OF CONTENTS ...................................................................................................................... 4 5. PIN CONFIGURATION ....................................................................................................................... 5 6. PIN DESCRIPTION ............................................................................................................................. 6 7. FUNCTIONAL DESCRIPTION............................................................................................................ 7 7.1. Potentiometer and ...
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PIN CONFIGURATION 1 INC U 8-MSOP 1 INC 2 U 8-PDIP INC ...
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PIN DESCRIPTION Pin Name I/O I INC TABLE 1 – PIN DESCRIPTION Description Increment Control. A High-Low transition ...
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FUNCTIONAL DESCRIPTION The WMS7170/1, a nonvolatile digitally programmable potentiometers with 100 taps, with or without output buffer, is designed to operate as both a potentiometer or a variable resistor depending upon the output configuration selected. The chip can store ...
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ERIAL ATA NTERFACE The Up/Down family has a 3-wire Serial Data Interface consisting INC , U/ D pins. Only UP/DOWN operations can be performed. The key features of this interface include: • Increment/Decrement ...
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TIMING DIAGRAMS Conditions +2.7V to 5.5V INC FIGURE 3 –WMS7170/1 TIMING DIAGRAM Note: [ the AC Timing diagram (Figure ...
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TABLE 10 – TIMING PARAMETERS PARAMETERS CS to INC Setup INC Setup INC Hold INC LOW Period INC HIGH Period INC Inactive to CS Inactive CS Deselect Time (NO STORE) CS Deselect Time (STORE) ...
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ABSOLUTE MAXIMUM RATINGS TABLE 11 – ABSOLUTE MAXIMUM RATINGS (PACKAGED PARTS) Conditions Junction temperature Storage temperature Voltage applied to any pad V – TABLE 12 – OPERATING CONDITIONS (PACKAGED PARTS) Conditions Commercial operating temperature range Extended ...
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ELECTRICAL CHARACTERISTICS TABLE 12 – ELECTRICAL CHARACTERISTICS (Packaged parts) PARAMETERS Rheostat Mode Nominal Resistance [2] Different Non Linearity [2] Integral Non Linearity 1 Tempo [2] Wiper Resistance Wiper Current Divider Mode Resolution [2] Different Non Linearity [2] Integral Non ...
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PARAMETERS Output Low Voltage Input Leakage Current Output Leakage Current [1] Input Capacitance [1] Output Capacitance Power Requirements Operating Voltage Operating Current Operating Current Standby Current Power Supply Rejection Ratio Notes: [1] Not subject to production test. [2] LSB = ...
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T C EST IRCUITS 1LSB= V+/256 WMS71xx *Assume infinite input impedance Potentiometer divider nonlinearity error test circuit (INL, DNL) No Connection WMS71xx ...
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TYPICAL APPLICATION CIRCUITS Vin WMS71XX OUT − R (256 256 R = Total resistance of potentiometer Wiper setting for WMS71XX ...
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WMS71xx GND FIGURE 7 – WMS7170/1 TRIMMING VOLTAGE REFERENCE CS\ U/D\ INC\ FIGURE 8 – WMS7170/1 RF AMP CONTROL 32mA V REFH V REF = 5.0v C1 0.1uF CS U/ INC ...
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L C AYOUT ONSIDERATIONS Use a 0.1μF bypass capacitor as close as possible to the V performance. Often this can be done by placing the surface mount capacitor on the bottom side of the PC board, directly between the ...
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PACKAGE DRAWINGS AND DIMENSIONS SEATING PLANE b Control demensions are in milmeters . SYMBOL θ DIMENSION ...
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FIGURE 12: 8L 3MM MSOP - 20 - WMS7170/1 ...
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ORDERING INFORMATION Winbond’s WinPot Part Number Description: WMS71 T B RRR P End-to-End Output Resistance Buffer NO 10K 50K 100K YES 10K 50K 100K For the latest product information, access Winbond’s worldwide website at http://www.winbond-usa.com Winbond WinPot Products w/ ...
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VERSION HISTORY VERSION DATE 1.0 June 2003 Initial issue 1.1 April 2005 Revise disclaim section DESCRIPTION - 22 - WMS7170/1 ...
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Winbond products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical implantation, atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, or for other ...