Renesas X9315TMIZT1

Overview

X9315TMIZT1 from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 31-element resistor array with 32 discrete wiper tap positions, nonvolatile memory for power-up recall, and 3-wire serial interface (CS/U/D/INC). It provides 100kΩ end-to-end resistance, ±20% tolerance, operates from 4.5V to 5.5V, and delivers low-power operation (80µA active, 5µA standby) for precision analog trimming in industrial control systems.

For engineers reviewing the X9315TMIZT1 datasheet, X9315TMIZT1 pinout, X9315TMIZT1 application, or X9315TMIZT1 equivalent, this page delivers verified specifications, validated MSOP-8 package details, confirmed wiper resistance (200Ω typ. at 5V), absolute linearity (±1 MI), and real-world use cases including voltage reference adjustment and sensor signal conditioning - all directly traceable to FN8179 Rev.2.00.

Technical Context

The X9315TMIZT1 uses a 5-bit up/down counter driving a decoder that selects one of 32 wiper positions across a temperature-compensated 31-resistor ladder. Wiper movement follows make-before-break switching, preventing open-circuit transients during position changes.

Nonvolatile storage is triggered by a CS↑ transition while INC is HIGH, writing the current counter value to EEPROM with 100,000-cycle endurance and 100-year data retention. The device supports industrial temperature range (–40°C to +85°C) and RoHS-compliant Pb-free MSOP-8 packaging (M8.118).

Key Specifications

Pinout & Package

Package: 8-lead MSOP (Mini Small Outline Plastic), Pb-free, JEDEC MO-187AA compliant (M8.118), body dimensions 3.0mm × 3.0mm × 0.85mm, thermal resistance θJA = 154°C/W.

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 X9315TMIZT1 uniquely combines 3-wire simplicity, guaranteed power-up recall, and 100kΩ value optimized for high-impedance reference and sensor circuits - eliminating external memory and reducing BOM count.

Availability

X9315TMIZT1 is available at Aetrix Electronics and suitable for industrial control systems, sensor calibration platforms, and programmable power supply designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for X9315TMIZT1 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 (now part of Renesas Electronics) is a U.S.-based semiconductor company specializing in precision analog, power management, and interface ICs for industrial, communications, and computing markets.

The X9315 product line delivers solid-state digitally controlled potentiometers for analog trimming tasks where reliability, nonvolatile setting retention, and low-noise performance supersede mechanical alternatives - targeting industrial instrumentation, sensor interfaces, and programmable power systems.

FAQ

What is the wiper resistance specification for X9315TMIZT1 at 5V supply?

The X9315TMIZT1 exhibits a typical wiper resistance of 200Ω at VCC = 5V, with a maximum of 400Ω under specified test conditions. This value directly affects loading error in voltage divider configurations and must be accounted for in precision applications such as reference trimming or sensor biasing where source impedance matters.

Does X9315TMIZT1 retain its wiper position after power cycling?

Yes, the X9315TMIZT1 stores the wiper position in nonvolatile EEPROM memory. Upon power-up, it automatically recalls the last stored value, ensuring consistent analog settings without host MCU intervention. This behavior is guaranteed across 100 years of data retention and 100,000 write cycles per bit.

What package type and footprint does X9315TMIZT1 use?

The X9315TMIZT1 uses an 8-lead MSOP package (JEDEC MO-187AA, drawing M8.118), measuring 3.0mm × 3.0mm × 0.85mm with 0.65mm lead pitch. It is Pb-free and RoHS-compliant, compatible with standard reflow profiles and automated SMT assembly lines.

Can X9315TMIZT1 operate from a 3.3V supply?

No, the X9315TMIZT1 is rated for VCC = 4.5V to 5.5V only. It is not specified for 3.3V operation. For 2.7V–5.5V compatibility, consider the X9315TMIZ-2.7T1 variant, which shares identical functionality and pinout but supports lower supply voltages.

How is the wiper position stored in nonvolatile memory on X9315TMIZT1?

Wiper position is stored on X9315TMIZT1 by asserting CS HIGH while INC is held HIGH. This triggers an EEPROM write cycle (tWR = 5–10 ms) that saves the current 5-bit counter value. During storage, ICC2 peaks at 400µA; the device enters standby mode upon completion.