x9428wsi-2.7 Intersil Corporation, x9428wsi-2.7 Datasheet
x9428wsi-2.7
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x9428wsi-2.7 Summary of contents
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Data Sheet Single Digitally Controlled Potentiometer (XDCP™) FEATURES • Solid state potentiometer • 2-wire serial interface • Register oriented format —Direct Read/Write/Transfer wiper position —Store as many as four positions per potentiometer • Power supplies —V = 2.7V to ...
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Ordering Information PART PART NUMBER MARKING X9428WS16* X9428WS X9428WS16Z* (Note) X9428WS Z X9428WS16I* X9428WS I X9428WS16IZ* (Note) X9428WS ZI X9428WV14* X9428 W X9428WV14Z* (Note) X9428 Z X9428WV14I* X9428 WI X9428WV14IZ* (Note) X9428 ZI X9428YS16* X9428YS X9428YS16Z* (Note) X9428YS Z X9428YS16I* ...
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Ordering Information (Continued) PART PART NUMBER MARKING X9428YS16I-2.7* X9428YS G X9428YS16IZ-2.7* X9428YS ZG (Note) X9428YV14-2.7* X9428 YF X9428YV14Z-2.7* X9428 YZF (Note) X9428YV14I-2.7* X9428 YG X9428YV14IZ-2.7* X9428 YZG (Note) *Add "T1" suffix for tape and reel. NOTE: Intersil Pb-free plus anneal ...
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PIN DESCRIPTIONS Host Interface Pins Serial Clock (SCL) The SCL input is used to clock data into and out of the X9428. Serial Data (SDA) SDA is a bidirectional pin used to transfer data into and out of the device. ...
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PRINCIPLES OF OPERATION The X9428 is a highly integrated microcircuit incorporating a resistor array and its associated registers and counters and the serial interface logic providing direct communication between the host and the XDCP potentiometers. Serial Interface The X9428 supports ...
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Acknowledge Polling The disabling of the inputs, during the internal nonvolatile write operation, can be used to take advantage of the typical 5ms EEPROM write cycle time. Once the stop condition is issued to indicate the end of the nonvolatile ...
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Figure 3. Two-Byte Instruction Sequence SCL SDA The Increment/Decrement command is different from the other commands. Once the command is issued and the X9428 has responded with an acknowledge, the master can ...
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Figure 4. Three-Byte Instruction Sequence SCL SDA Figure 5. Increment/Decrement Instruction Sequence SCL SDA Figure 6. ...
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Figure 7. Acknowledge Response from Receiver SCL from Master Data Output from Transmitter Data Output from Receiver START Figure 8. Detailed Potentiometer Block Diagram Serial Data Path From Interface Circuitry Register 0 Register 2 If WCR = 00[H] then V ...
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DETAILED OPERATION The potentiometer has a Wiper Counter Register and four Data Registers. A detailed discussion of the register organization and array operation follows. Wiper Counter Register The X9428 contains a Wiper Counter Register. The Wiper Counter Register can be ...
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Instruction Format Notes: (1) “MACK”/”SACK”: stands for the acknowledge sent by the master/slave. (2) “A3 ~ A0”: stands for the device addresses sent by the master. (3) “X”: indicates that “0” for testing purpose but physically it ...
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XFR Wiper Counter Register (WCR) to Data Register (DR) S device type device instruction S T identifier addresses Increment/Decrement ...
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ABSOLUTE MAXIMUM RATINGS Temperature under bias .................... -65°C to +135°C Storage temperature ......................... -65°C to +150°C Voltage on SDA, SCL or any address input with respect to V ......................... -1V to +7V SS Voltage on V+ (referenced ...
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D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) Symbol Parameter I V supply current CC1 CC (nonvolatile write supply current CC2 CC (move wiper, write, read current (standby Input leakage ...
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A.C. TEST CONDITIONS I nput pulse levels V Input rise and fall times 10ns Input and output timing level V EQUIVALENT A.C. LOAD CIRCUIT 5V 1533Ω SDA Output 100pF AC TIMING (over recommended operating conditions) Symbol f Clock frequency SCL ...
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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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XDCP Timing (for All Load Instructions) SCL SDA XDCP Timing (for Increment/Decrement Instruction) SCL Wiper Register Address SDA Write Protect and Device Address Pins Timing SCL SDA WP A0, A2 ...
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APPLICATIONS INFORMATION Basic Configurations of Electronic Potentiometers V R Three terminal Potentiometer; Variable voltage divider Application Circuits Noninverting Amplifier – (1 Offset Voltage Adjustment R ...
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Application Circuits (continued) Attenuator – All -1/2 ≤ G ≤ +1/2 Inverting Amplifier – ...
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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 ...