Renesas X9317ZV8IT1

Overview

X9317ZV8IT1 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with 100 wiper tap points, nonvolatile wiper position storage, and 3-wire up/down serial interface. It operates from 2.7V to 5.5V, delivers ±20% end-to-end resistance tolerance, and supports voltage divider or two-terminal variable resistor configurations in precision analog trimming applications.

For engineers reviewing the X9317ZV8IT1 datasheet, X9317ZV8IT1 pinout, X9317ZV8IT1 application, or X9317ZV8IT1 equivalent, this device serves as a solid-state replacement for mechanical potentiometers where power-up repeatability, low standby current (<5 µA), and temperature-compensated linearity (±0.2 MI relative linearity) are critical in embedded bias control and calibration circuits.

Technical Context

The X9317ZV8IT1 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 100 discrete taps. Its resistor array uses temperature-compensated elements yielding ±300 ppm/°C total resistance TC and ±20 ppm/°C ratiometric TC - enabling stable voltage division under thermal drift.

Wiper movement follows make-before-break switching, with tIW = 1–5 µs INC-to-RW transition delay and tCYC = 2 µs minimum increment cycle time. The device enters standby mode when CS is high, drawing ≤5 µA, and recalls stored wiper position on power-up without external initialization.

Key Specifications

Pinout & Package

Package: 8-lead TSSOP (RoHS-compliant, JEDEC MO-153 AC, M8.173 drawing), 4.4 mm × 3.0 mm footprint, 1.2 mm max height.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5204BRUZ10 and MCP41010-I/P, the X9317ZV8IT1 uniquely combines single-channel simplicity, guaranteed power-up repeatability via on-chip NV memory, and minimal 3-wire control - reducing firmware overhead and PCB real estate in cost-sensitive analog calibration subsystems.

Availability

X9317ZV8IT1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode current regulation, voltage regulator output trimming, and precision DC offset adjustment requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for X9317ZV8IT1 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

Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog power, and connectivity solutions for automotive, industrial, and IoT applications.

The X9317 family is designed as a solid-state, nonvolatile digital potentiometer for precision analog trimming in space-constrained, reliability-critical systems where mechanical potentiometer wear and calibration drift must be eliminated.

FAQ

What is the supply voltage range supported by the X9317ZV8IT1?

The X9317ZV8IT1 operates from 2.7 V to 5.5 V, covering both 3.3 V and 5 V logic rails. This dual-voltage capability allows direct integration into mixed-supply systems without level-shifting circuitry. The device maintains full specification compliance-including 100-tap resolution, ±0.2 MI linearity, and nonvolatile store-across the entire range, as confirmed in the FN8183 Rev.10.01 datasheet Section "Potentiometer Specifications".

Does the X9317ZV8IT1 retain its wiper position after power loss?

Yes, the X9317ZV8IT1 stores the wiper position in on-chip nonvolatile memory and automatically recalls it on power-up. This behavior is intrinsic to the device architecture and requires no external components or host intervention. Data retention is rated for 100 years, and endurance is specified at 100,000 store cycles - verified in the "Endurance and Data Retention" table on page 5 of the X9317ZV8IT1 datasheet.

How many wiper tap points does the X9317ZV8IT1 provide?

The X9317ZV8IT1 provides exactly 100 wiper tap points, corresponding to a 99-element resistor ladder. Each tap represents a discrete, equally spaced division of the end-to-end resistance (RTOTAL), enabling 1% resolution in voltage divider applications. This count is fixed and confirmed in the device's block diagram (Figure 1), pin function description, and ordering information tables in the FN8183 datasheet.

What package type is used for the X9317ZV8IT1?

The X9317ZV8IT1 uses an 8-lead TSSOP package per JEDEC MO-153 AC standard, with package drawing number M8.173. Physical dimensions are 4.4 mm × 3.0 mm × 1.2 mm max height. This RoHS-compliant, surface-mount package supports reflow soldering and is optimized for high-density PCB layouts in industrial and consumer electronics - as documented in the "Ordering Information" and "Package Outline Drawings" sections of the datasheet.

Can the X9317ZV8IT1 be used as a two-terminal variable resistor?

Yes, the X9317ZV8IT1 can operate as a two-terminal variable resistor by connecting either RH or RL to RW and using the remaining terminal with RW as the adjustable element. This configuration is explicitly supported in the datasheet's "Basic Configurations" section (Figure 4) and enables current-source trimming, gain-setting networks, and other rheostat-style applications while retaining nonvolatile position storage and 100-tap resolution.