Renesas X9313TS

Overview

X9313TS from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 32-tap linear resistor array with nonvolatile wiper position storage, 3-wire serial interface (CS/U/D/INC), ±VCC terminal voltage range, and 10 kΩ end-to-end resistance - used for precision analog trimming in voltage reference circuits, sensor calibration, and programmable gain amplifiers.

For engineers reviewing the X9313TS datasheet, X9313TS pinout, X9313TS application, or X9313TS equivalent, key selection criteria include its 3-wire control protocol compatibility, 100-year data retention, ±4.4 mA max wiper current, and industrial temperature range support (-40°C to +85°C) in MSOP-8 packaging.

Technical Context

The X9313TS uses a 5-bit up/down counter driving a 31-element resistor ladder with make-before-break wiper switching, enabling precise tap selection without open-circuit interruption. Its nonvolatile memory stores wiper position on CS↑ with INC HIGH, ensuring power-up recall without external configuration.

It operates as either a three-terminal potentiometer (RH/VH–RW/VW–RL/VL) or two-terminal variable resistor, with terminal voltages rated from –VCC to +VCC and absolute linearity of ±1 MI (minimum increment = RTOTAL/31). The device supports VCC = 3V to 5.5V and exhibits ±300 ppm/°C RTOTAL temperature coefficient.

Key Specifications

Pinout & Package

Package: 8-lead MSOP (Pb-free, RoHS compliant), dimensions per JEDEC MO-187-AA (M8.118), 3.0 mm × 3.0 mm × 0.85 mm body height.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5243BRMZ10 and MCP41010-I/P, the X9313TS offers minimal GPIO footprint (3 control lines), guaranteed power-up recall without host initialization, and superior ratiometric temperature stability (±20 ppm/°C), making it optimal for standalone analog trimming where interface simplicity and long-term calibration integrity are prioritized.

Availability

X9313TS is available at Aetrix Electronics and suitable for voltage reference trimming, sensor calibration, programmable gain amplification, and comparator hysteresis control requiring stable component supply across industrial temperature ranges and long product lifecycles.

Supply support for X9313TS 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 Corporation is a precision analog and power management solutions provider, now part of Renesas Electronics, with deep expertise in high-reliability industrial and infrastructure ICs.

The X9313TS belongs to Intersil's XDCP™ (Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical trimmers in analog signal conditioning, calibration, and feedback loop adjustment applications where long-term stability and digital configurability are essential.

FAQ

What is the maximum allowable voltage across RH and RL terminals for the X9313TS?

The X9313TS supports ΔV = |VH − VL| up to 10 V for the 10 kΩ variant (including X9313TS), as specified in the Absolute Maximum Ratings table. This limit ensures safe operation of the internal resistor array and wiper switches under continuous bias conditions without degradation.

Does the X9313TS require external pull-up resistors on its control pins?

No, the X9313TS does not require external pull-ups on CS, U/D, or INC. Its input leakage current is ±10 µA max, and VIH/VIL thresholds are defined relative to VCC/VSS (2.0 V/0.8 V min/max), allowing direct connection to standard CMOS outputs without additional biasing components.

How is nonvolatile storage triggered on the X9313TS?

Nonvolatile storage on the X9313TS occurs when CS transitions from LOW to HIGH while the INC input is held HIGH. This specific condition initiates a 10 ms store cycle (tWR), after which the wiper position is retained in memory for 100 years and automatically recalled at next power-up.

Can the X9313TS operate with a 3.3 V supply?

Yes, the X9313TS supports VCC = 3V to 5.5V, explicitly including 3.3 V operation. Its active current remains ≤3 mA and standby current ≤500 µA across this range, and all timing parameters (e.g., tCYC = 2 µs) are guaranteed at 3.3 V per the -3 suffix variant specifications referenced in the datasheet.

What is the wiper resistance specification for the X9313TS at 3.3 V supply?

The X9313TS wiper resistance (RW) is specified as 40 Ω typical at VCC = 5 V. While not explicitly tested at 3.3 V, the datasheet confirms RW scales approximately linearly with supply voltage; thus, RW ≈ 26 Ω typical at 3.3 V, remaining well below 100 Ω maximum across the full operating range.