Renesas X9317ZM8Z-2.7

Overview

X9317ZM8Z-2.7 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 100 wiper tap points, nonvolatile wiper position storage, and 10 kΩ end-to-end resistance. It operates from 2.7 V to 5.5 V, consumes <5 µA standby current, and uses a 3-wire up/down serial interface for precise voltage or current trimming in analog signal paths.

For engineers reviewing the X9317ZM8Z-2.7 datasheet, X9317ZM8Z-2.7 pinout, X9317ZM8Z-2.7 application, or X9317ZM8Z-2.7 equivalent, this device serves as a solid-state replacement for mechanical potentiometers in DC bias adjustment, laser diode control, and voltage regulator output tuning-requiring stable wiper position retention across power cycles and low-noise analog performance.

Technical Context

The X9317ZM8Z-2.7 implements a 99-element resistor array with make-before-break wiper switching, enabling glitch-free tap transitions. Its 7-bit counter drives a decoder that selects one of 100 discrete wiper positions, with position stored in nonvolatile memory upon CS↑/INC↑ edge.

It supports three-terminal potentiometer (voltage divider) and two-terminal variable resistor (current control) configurations. Temperature-compensated design delivers ±300 ppm/°C total resistance TC and ±20 ppm/°C ratiometric TC, ensuring stable gain/offset trim over industrial temperature ranges.

Key Specifications

Pinout & Package

Package: 8-lead MSOP (RoHS-compliant, M8.118 drawing), 3.0 mm × 3.0 mm footprint, 0.65 mm pitch, 1.10 mm max height.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5170BRMZ-10 and MCP41010-I/P, the X9317ZM8Z-2.7 uniquely combines 3-wire simplicity, nonvolatile storage, and guaranteed power-up recall-making it optimal for unattended or safety-critical analog calibration where MCU intervention cannot be assumed.

Availability

X9317ZM8Z-2.7 is available at Aetrix Electronics and suitable for LCD bias control, laser diode bias control, and voltage regulator output control requiring stable component supply, long-term calibration retention, and RoHS-compliant packaging.

Supply support for X9317ZM8Z-2.7 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 SoC solutions for automotive, industrial, and IoT applications-with emphasis on reliability, low-power design, and functional safety.

The X9317 series belongs to Renesas' XDCP™ (Digitally Controlled Potentiometer) product line, engineered specifically for replacing mechanical trimpots in precision analog trimming applications where nonvolatile memory, low noise, and temperature stability are critical.

FAQ

What is the operating voltage range for the X9317ZM8Z-2.7?

The X9317ZM8Z-2.7 operates from 2.7 V to 5.5 V, supporting both 3.3 V and 5 V systems without external regulation. This range is explicitly specified in the "Potentiometer Specifications" table on page 4 of the FN8183 datasheet, and applies across the full commercial temperature range (0°C to +70°C). The "-2.7" suffix denotes this extended low-voltage capability versus standard 4.5–5.5 V variants.

Does the X9317ZM8Z-2.7 retain its wiper position after power cycling?

Yes, the X9317ZM8Z-2.7 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is confirmed in the device description (page 1), block diagram (Figure 1), and "Principles of Operation" section (page 8). Data retention is rated for 100 years, and endurance is 100,000 write cycles-both verified per datasheet specifications on page 5.

How many wiper positions does the X9317ZM8Z-2.7 support?

The X9317ZM8Z-2.7 supports exactly 100 discrete wiper tap positions (0 through 99), corresponding to a 99-element resistor array. This is stated on page 1 ("100 wiper tap points"), confirmed in Figure 1's block diagram (7-bit counter → decoder → 100 outputs), and reflected in linearity calculations using MI = [V(RH)−V(RL)]/99 on page 6.

What package type is used for the X9317ZM8Z-2.7?

The X9317ZM8Z-2.7 uses an 8-lead MSOP package (RoHS-compliant, JEDEC MO-187-AA compliant), identified by package drawing M8.118. This is explicitly listed in the "Ordering Information" table on page 2 and detailed in the package outline on page 11. Dimensions include 3.0 mm × 3.0 mm body, 0.65 mm lead pitch, and 1.10 mm max height.

Can the X9317ZM8Z-2.7 be used as a two-terminal variable resistor?

Yes, the X9317ZM8Z-2.7 can be configured as a two-terminal variable resistor by connecting either RH or RL to RW (wiper), leaving the other fixed terminal unused. This usage mode is explicitly supported per the "Applications" section (page 1) and illustrated in Figure 4 ("Two Terminal Variable Resistor; Variable Current"). It enables current-source trimming in laser diode or LED bias circuits.