Renesas X9110TV14

Overview

X9110TV14 from Intersil is a dual-supply, low-power, 1024-tap digitally controlled potentiometer (XDCP™) with SPI interface, 100kΩ end-to-end resistance, ±5V analog supply range (V+/V−), and 2.7V–5.5V system VCC operation. It functions as a three-terminal potentiometer or two-terminal variable resistor for precision analog trimming in voltage regulators, amplifier gain control, and sensor signal conditioning.

For engineers reviewing the X9110TV14 datasheet, X9110TV14 pinout, X9110TV14 application, or X9110TV14 equivalent, key selection criteria include its 10-bit resolution, nonvolatile data register storage (DR0–DR3), power-on recall from DR0, <5µA standby current, and 14-lead TSSOP package with verified RH/RW/RL terminal mapping and SPI bus timing compliance up to 2.5MHz.

Technical Context

The X9110TV14 implements a monolithic CMOS resistor ladder of 1023 segments with CMOS wiper switches controlled by a volatile 10-bit Wiper Counter Register (WCR). Its SPI interface supports four-byte read/write instructions and two-byte transfer operations between WCR and four nonvolatile 10-bit data registers (DR0–DR3).

Analog operation requires independent dual supplies: V+ and V− set the voltage limits across RH and RL terminals (−5V to +5V), while VCC powers digital logic (2.7V–5.5V). Power-up automatically loads DR0 into WCR, enabling deterministic wiper initialization without host intervention.

Key Specifications

Pinout & Package

Package: 14-lead TSSOP (RoHS-compliant, M14.173 drawing), 5.0mm × 4.4mm body, 0.65mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digitally controlled potentiometer applications.

Compared with AD5241BRMZ10 and MCP41010-I/P, the X9110TV14 uniquely supports true bipolar analog operation (±5V), retains four independent calibration points in nonvolatile memory, and guarantees deterministic power-on behavior-making it optimal for industrial sensor front-ends and precision power management where signal integrity and startup repeatability are critical.

Availability

X9110TV14 is available at Aetrix Electronics and suitable for voltage regulator trim, op-amp offset compensation, and audio gain control requiring stable component supply across commercial temperature range (0°C to +70°C).

Supply support for X9110TV14 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Intersil (now part of Renesas Electronics) designs high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.

The X9110 product line delivers digitally programmable resistive elements for replacing mechanical potentiometers in calibration-critical systems-targeting industrial instrumentation, medical devices, and telecom infrastructure where long-term stability and nonvolatile configuration are mandatory.

FAQ

What is the operating voltage range for the analog terminals (V+, V−, RH, RL) of the X9110TV14?

The X9110TV14 supports analog supply voltages from −5V to +5V on V+ and V− pins, enabling bipolar signal operation. RH and RL terminals must remain within this range: RH ≤ V+ and RL ≥ V−. This allows use in op-amp circuits with split supplies, unlike unipolar-only digital potentiometers. The specification is confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions sections of the FN8158 datasheet.

Does the X9110TV14 retain its wiper position after power cycling?

Yes-the X9110TV14 loads the contents of Data Register 0 (DR0) into the volatile Wiper Counter Register (WCR) at power-up, ensuring repeatable startup behavior. DR0 is nonvolatile and retains its value for 100 years. This power-on recall feature is intrinsic to the X9110TV14 design and eliminates the need for host MCU initialization code to restore calibration settings.

How many nonvolatile memory registers does the X9110TV14 have, and what are their functions?

The X9110TV14 has four 10-bit nonvolatile data registers (DR0–DR3), each capable of storing a wiper position (0–1023) or general-purpose system parameter. DR0 is automatically loaded into WCR at power-up. All registers support SPI read/write and transfer operations, enabling multi-point calibration storage or user preference persistence without external memory.

Can the X9110TV14 be used in a two-terminal variable resistor configuration?

Yes-the X9110TV14 supports both three-terminal potentiometer (RH–RW–RL) and two-terminal variable resistor (e.g., RW–RH or RW–RL) configurations. The datasheet explicitly lists "two terminal variable resistor" as a supported mode, and application circuits (Figures 13, 15, 16) demonstrate its use in regulator feedback and op-amp offset networks with one terminal grounded or tied to fixed voltage.

What is the maximum SPI clock frequency supported by the X9110TV14?

The X9110TV14 supports an SPI clock frequency (fSCK) up to 2.5MHz, as specified in the AC Timing section of the FN8158 datasheet. This allows fast wiper updates (<10µs response time after instruction) and efficient register transfers, making it suitable for real-time gain adjustment in audio or control loops without introducing latency bottlenecks.