Renesas X9313ZMZ

Overview

X9313ZMZ from Intersil is a digitally controlled potentiometer (XDCP™) with 32 linear tap positions, 1kΩ end-to-end resistance, 3-wire serial interface (CS/U/D/INC), and nonvolatile wiper position storage. It operates from 3V to 5.5V, supports ±VCC terminal voltages, and is housed in an 8-lead MSOP package. It serves as a solid-state replacement for mechanical potentiometers in precision analog trimming applications.

For engineers reviewing the X9313ZMZ datasheet, X9313ZMZ pinout, X9313ZMZ application, or X9313ZMZ equivalent, key selection criteria include its 1kΩ RTOTAL tolerance (±20%), wiper resistance (40Ω typ. at 5V), 100,000-cycle endurance, 100-year data retention, and compatibility with commercial temperature range (0°C to +70°C) systems requiring stable, reprogrammable resistance control.

Technical Context

The X9313ZMZ implements a resistor ladder of 31 elements with a digitally controlled wiper switch network driven by a 5-bit up/down counter. Its control logic responds to negative-edge-triggered INC pulses while U/D sets direction, and CS enables selection and initiates nonvolatile store operations when high with INC high.

It uses CMOS technology with active current ≤3mA and standby current ≤500µA. The device features make-before-break switching, temperature-compensated resistors (±300ppm/°C), and ratiometric tracking (±20ppm/°C), enabling stable voltage-divider operation across supply and temperature variations.

Key Specifications

Pinout & Package

Package: 8-lead MSOP (Pb-free, RoHS compliant), dimensions per JEDEC MO-187-AA, body size 3.0mm × 3.0mm × 1.1mm max height.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5170BRMZ-1 and MCP41010-I/P, the X9313ZMZ delivers guaranteed power-up to last stored setting without firmware intervention, simpler 3-wire control, and superior long-term data retention-making it optimal for maintenance-free analog calibration in embedded industrial equipment.

Availability

X9313ZMZ is available at Aetrix Electronics and suitable for audio volume control, laser diode bias adjustment, DC-DC converter feedback trim, and industrial sensor signal conditioning requiring stable component supply and long-term calibration integrity.

Supply support for X9313ZMZ 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 leading provider of precision analog and power management solutions, serving industrial, infrastructure, and high-end consumer markets with high-reliability semiconductor products.

The X9313 family was designed specifically for solid-state replacement of mechanical potentiometers in analog trimming applications requiring nonvolatile storage, low power, and robust performance across commercial temperature ranges.

FAQ

What is the maximum allowable voltage across RH/VH and RL/VL terminals for X9313ZMZ?

The X9313ZMZ specifies ΔV = |VH − VL| ≤ 4V for the X9313Z variant. This limit applies regardless of VCC level and ensures safe operation of the internal resistor array and wiper switches. Exceeding 4V risks irreversible damage to the thin-film resistive elements and is outside absolute maximum ratings.

Does X9313ZMZ require external pull-up resistors on its control pins?

No, X9313ZMZ does not require external pull-up resistors on CS, U/D, or INC. Its CMOS inputs have leakage current ≤±10µA and defined VIH (≥2V) and VIL (≤0.8V) thresholds. Microcontroller GPIOs configured as push-pull outputs can drive these pins directly without passive components.

Can X9313ZMZ be used in a two-terminal variable resistor configuration?

Yes, X9313ZMZ supports two-terminal operation by connecting either RH/VH or RL/VL to RW/VW and using the remaining fixed terminal with the wiper. In this mode, resistance varies from near-zero (wiper at shorted terminal) to RTOTAL (wiper at opposite terminal), maintaining the same 32-step resolution and nonvolatile storage capability.

What is the wiper resistance specification for X9313ZMZ at 3.3V supply?

The datasheet specifies RW = 40Ω typical at VCC = 5V. While no direct 3.3V value is given, the wiper resistance is primarily determined by MOSFET channel geometry and is relatively supply-independent. At 3.3V, RW remains ≤100Ω (max), ensuring minimal insertion loss in precision analog paths.

How does the X9313ZMZ handle power-up sequencing to prevent unintended wiper movement?

To prevent spurious wiper changes or accidental store operations, the X9313ZMZ datasheet mandates bringing CS and INC high before or concurrently with VCC ramp-up. This ensures the control logic initializes in a known state; failure to follow this sequence may result in undefined wiper position or corrupted NVM contents during first power cycle.