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X9455WV24I-2.7 Datasheet(PDF) 1 Page - Intersil Corporation |
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X9455WV24I-2.7 Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 18 page 1 ® FN8202.0 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2004. All Rights Reserved All other trademarks mentioned are the property of their respective owners. X9455 Dual Two-wiper Digitally-Controlled (XDCP™) Potentiometer The X9455 integrates 2 digitally controlled potentiometers (XDCP), each one with dual wipers, on a monolithic CMOS integrated circuit. The digitally controlled potentiometer is implemented using 255 resistive elements in a series array. Between each element are tap points connected to wiper terminals through switches. The position of each wiper on the array is controlled by the user through the U/D or 2-wire bus interface. Each potentiometer wiper has associated with it two volatile Wiper Counter Register (WCR) and each WCR has associated with it four non-volatile Data Registers 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 though the switches. The contents of the default data registers (DR0A0, DR0B0, DR1A0, DR1B0) are loaded into the WCR on power up. The DCP can be used as a four-terminal potentiometer in a wide variety of applications including the programming of bias voltages, window comparators, and three resistor programmable networks. Features • Dual Two-wiper solid state potentiometer • 256 Resistor tap points-0.4% resolution • 2-wire serial interface for Write, Read, and transfer operations of the potentiometer • Up/Down interface for individual potentiometer wipers • Wiper resistance, 40 Ω typical • Non-volatile storage of wiper positions • Power On Recall Loads saved wiper position on Power Up. • Standby Current < 20µA Max • Maximum Wiper Current: 3mA •VCC: 2.7V to 5.5V operation •2.8k Ω,10kΩ, 50kΩ, 100kΩ version of total pot resistance • Endurance: 100,000 Data changes per bit per register • 100 yr. data retention • 24-Lead TSSOP Pinout X9455 (24-LD TSSOP) TOP VIEW Ordering Information PART NUMBER RTOTAL PACKAGE OPERATING TEMP RANGE (°C) X9455YV24-2.7 2.8k Ω 24-lead TSSOP 0 to 70 X9455YV24I-2.7 2.8k Ω 24-lead TSSOP -40 to +85 X9455WV24-2.7 10k Ω 24-lead TSSOP 0 to 70 X9455WV24I-2.7 10k Ω 24-lead TSSOP -40 to +85 X9455UV24-2.7 50k Ω 24-lead TSSOP 0 to 70 X9455UV24I-2.7 50k Ω 24-lead TSSOP -40 to +85 X9455TV24-2.7 100k Ω 24-lead TSSOP 0 to 70 X9455TV24I-2.7 100k Ω 24-lead TSSOP -40 to +85 RH1 NC RW1A 1 2 3 4 5 6 7 14 20 19 18 17 16 15 X9455 DS0 DS1 A0 RW0B U/D NC SCL RL1 Vss NC RW0A CS RH0 RL0 RW1B NC Vcc 8 9 10 13 WP A2 11 12 SDA A1 24 23 22 21 Data Sheet November 10, 2004 |
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