x9420wvi-2.7 Intersil Corporation, x9420wvi-2.7 Datasheet
x9420wvi-2.7
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x9420wvi-2.7 Summary of contents
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Data Sheet Single Digitally Controlled (XDCP™) Potentiometer FEATURES • Solid-State Potentiometer • SPI Serial Interface • Register Oriented Format —Direct read/write/transfer wiper positions —Store as many as four positions per potentiometer • Power Supplies —V = 2.7V to 5.5V ...
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Ordering Information PART PART NUMBER MARKING X9420WS16* X9420WS X9420WS16Z* (Note) X9420WS Z X9420WS16I* X9420WS I X9420WS16IZ* (Note) X9420WS ZI X9420WV14* X9420 W X9420WV14Z* (Note) X9420 WZ X9420WV14I* X9420 WI X9420WV14IZ* (Note) X9420 WZI X9420YS16* X9420YS X9420YS16Z* (Note) X9420YS Z X9420YS16I* ...
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PIN DESCRIPTIONS Host Interface Pins Serial Output (SO push/pull serial data output pin. During a read cycle, data is shifted out on this pin. Data is clocked out by the falling edge of the serial clock. Serial ...
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PIN NAMES Symbol Description SCK Serial Clock SI, SO Serial Data A0 Device Address Potentiometer Pins (terminal equivalent Potentiometer Pins (wiper equivalent Hardware Write Protection HOLD ...
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Figure 1. Detailed Potentiometer Block Diagram Serial Data Path From Interface Circuitry Register 0 REGISTER 2 IF WCR = 00[H] THEN WCR = 3F[H] THEN Write in Process The ...
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The four high order bits of the instruction byte specify the operation. The next two bits (R one of the four registers that acted upon when a register oriented instruction is issued. The last two bits are ...
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Figure 5. Three-Byte Instruction Sequence (Write) CS SCL Figure 6. Three-Byte Instruction Sequence (Read) CS SCL Figure 7. Increment/Decrement Instruction Sequence CS SCK SI 0 ...
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Table 3. Instruction Set Instruction Read Wiper Counter 1 0 Register Write Wiper Counter 1 0 Register Read Data Register 1 0 Write Data Register 1 1 XFR Data Register Wiper Counter Register ...
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Instruction Format Notes: (1) “A1 ~ A0”: stands for the device addresses sent by the master. (2) WPx refers to wiper position data in the Wiper Counter Register “I”: stands for the increment operation, SI held HIGH during active SCK ...
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Transfer Wiper Counter Register (WCR) to Data Register (DR) device type device CS identifier addresses Falling A Edge Increment/Decrement Wiper Counter Register (WCR) device type device CS identifier addresses Falling A Edge ...
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ABSOLUTE MAXIMUM RATINGS Temperature under bias .....................- +135 C Storage temperature ..........................- +150 C Voltage on SCK, SCL or any address input with respect Voltage on V+ (referenced Voltage on ...
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D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) Symbol Parameter I V Supply Current (Active) CC1 Supply Current CC2 CC (Non-volatile Write Current (Standby Input Leakage Current LI I ...
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A.C. TEST CONDITIONS I nput pulse levels V CC Input rise and fall times 10ns Input and output timing level TIMING Symbol f SSI/SPI Clock Frequency SCK t SSI/SPI Clock Cycle Time CYC t SSI/SPI Clock High ...
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HIGH-VOLTAGE WRITE CYCLE TIMING Symbol t High-voltage Write Cycle Time (Store Instructions) WR XDCP TIMING Symbol t Wiper Response Time After The Third (Last) Power Supply Is Stable WRPO t Wiper Response Time After Instruction Issued (All Load Instructions) WRL ...
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TIMING DIAGRAMS Input Timing CS t LEAD SCK MSB SI High Impedance SO Output Timing CS SCK t V MSB SO ADDR SI Hold Timing CS SCK HOLD 15 X9420 t CYC ...
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XDCP Timing (for All Load Instructions) CS SCK MSB High Impedance SO XDCP Timing (for Increment/Decrement Instruction) CS SCK ADDR High Impedance SO Write Protect and Device Address Pins Timing ...
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APPLICATIONS INFORMATION Electronic potentiometers provide three powerful application advantages: (1) the variability and reliability of a solid- state potentiometer, (2) the flexibility of computer-based digital controls, and (3) the retentivity of nonvolatile memory used for the storage of multiple potentiometer ...
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Thin Shrink Small Outline Plastic Packages (TSSOP) N INDEX 0.25(0.010) E AREA E1 - 0.05(0.002) SEATING PLANE - -C- α 0.10(0.004) 0.10(0.004 NOTES: 1. These package ...
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... Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...