X9250TB24 XICOR [Xicor Inc.], X9250TB24 Datasheet
X9250TB24
Related parts for X9250TB24
X9250TB24 Summary of contents
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A N PPLICATION OTE AN99 • AN115 • AN120 • AN124 • AN133 • AN134 • AN135 Low Noise/Low Power/SPI Bus/256 Taps Quad Digitally Controlled Potentiometers (XDCP FEATURES • Four potentiometers ...
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X9250 PIN DESCRIPTIONS Serial Output (SO 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 Input SI is ...
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X9250 PIN NAMES Symbol SCK Serial Clock SI, SO Serial Data A -A Device Address Potentiometer Pins H0 H0– (terminal equivalent) L0 L0– ...
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X9250 Figure 1. Detailed Potentiometer Block Diagram (One of Four Arrays) Serial Data Path From Interface Circuitry Register 0 Register 2 If WCR = 00[H] then WCR = FF[H] then ...
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X9250 The four high order bits of the instruction byte specify the operation. The next two bits (R of the four registers that acted upon when a register oriented instruction is issued. The last two bits (P1 ...
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X9250 Figure 4. Two-Byte Instruction Sequence CS SCK Figure 5. Three-Byte Instruction Sequence (Write) CS SCL Figure 6. Three-Byte Instruction Sequence (Read) CS SCL ...
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X9250 Figure 8. Increment/Decrement Timing Limits SCK INC/DEC CMD Issued Table 1. Instruction Set Instruction I 3 Read Wiper Counter 1 Register Write Wiper Counter 1 Register Read Data Register 1 Write Data Register 1 ...
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X9250 Instruction Format Notes: (1) “A1 ~ A0”: stands for the device addresses sent by the master. (2) WPx refers to wiper position data in the Counter Register (2) “I”: stands for the increment operation, SI held HIGH during active ...
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X9250 Transfer Wiper Counter Register (WCR) to Data Register (DR) device type device CS identifier addresses Falling A A Edge Increment/Decrement Wiper Counter Register (WCR) device type device CS identifier addresses Falling ...
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X9250 ABSOLUTE MAXIMUM RATINGS Temperature under bias........................ –65 to +135 C Storage temperature............................. –65 to +150 C Voltage on SCK, SCL or any address input with respect to V ................................. –1V to +7V SS Voltage on V+ (referenced to V ...
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X9250 D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) Symbol Parameter I V supply current CC1 CC (active supply current CC2 CC (nonvolatile write current (standby Input leakage current LI ...
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X9250 Circuit #3 SPICE Macro Model R TOTAL 10pF 25pF TIMING Symbol f SSI/SPI clock frequency SCK t SSI/SPI clock cycle time CYC t SSI/SPI clock high time WH t SSI/SPI ...
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X9250 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) ...
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X9250 Output Timing CS SCK t MSB SO ADDR SI Hold Timing CS SCK HOLD XDCP Timing (for all Load Instructions) CS SCK MSB SI VWx High Impedance SO REV 1.1.5 1/31/ ...
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X9250 XDCP Timing (for Increment/Decrement Instruction) CS SCK VWx ADDR SI High Impedance SO Write Protect and Device Address Pins Timing REV 1.1.5 1/31/03 ... t WRID ... ... Inc/Dec Inc/Dec (Any Instruction WPAH ...
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X9250 APPLICATIONS INFORMATION Basic Configurations of Electronic Potentiometers V R Three terminal Potentiometer; Variable voltage divider Application Circuits Noninverting Amplifier – (1 Offset Voltage Adjustment ...
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X9250 Application Circuits (continued) Attenuator – -1/2 G +1/2 Inverting Amplifier – ...
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X9250 PACKAGING INFORMATION 24-Bump Chip Scale Package (CSP B24) Package Outline Drawing Top View (Sample Marking) Package Dimensions Symbol Package Width a Package Length b Package Height c Body Thickness d Ball Height e Ball Diameter f Ball Pitch – ...
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X9250 PACKAGING INFORMATION .026 (.65) BSC .303 (7.70) .311 (7.90) .0075 (.19) .0118 (.30) 0°–8° .020 (.50) .030 (.75) Detail A (20X) See Detail “A” NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) REV 1.1.5 1/31/03 24-Lead Plastic, TSSOP, ...
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X9250 PACKAGING INFORMATION Pin 1 Index Pin 1 (4X) 7° 0.050 (1.27) 0.010 (0.25) 0.020 (0.50) 0° – 8° 0.015 (0.40) 0.050 (1.27) NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) REV 1.1.5 1/31/03 24-Lead Plastic, SOIC, Package Code ...
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X9250 Ordering Information X9250 Device LIMITED WARRANTY Devices sold by Xicor, Inc. are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. Xicor, Inc. makes no warranty, express, statutory, implied description regarding ...