Renesas X9313ZMIZ-3

Overview

X9313ZMIZ-3 from Intersil is a digitally controlled potentiometer (XDCP™) with 32 linear tap positions, 1kΩ end-to-end resistance, -40°C to +85°C industrial temperature range, and 3-wire serial interface (CS/U/D/INC). It functions as a solid-state replacement for mechanical potentiometers in precision analog trimming circuits requiring nonvolatile wiper position storage and ±VCC terminal voltage tolerance.

For engineers reviewing the X9313ZMIZ-3 datasheet, X9313ZMIZ-3 pinout, X9313ZMIZ-3 application, or X9313ZMIZ-3 equivalent, key selection criteria include its 1kΩ RTOTAL, MSOP-8 package, 3V–5.5V supply compatibility, ±4.4mA max wiper current, and nonvolatile memory retention for power-up recall in embedded control and signal conditioning systems.

Technical Context

The X9313ZMIZ-3 implements a 31-element resistor array with make-before-break wiper switching, enabling stable tap transitions without open-circuit interruption. Its 5-bit up/down counter drives a decoder that selects one of 32 wiper positions, with wiper resistance typically 40Ω at VCC = 5V.

Control logic responds to negative-edge-triggered INC input while U/D sets direction; CS enables device selection and initiates nonvolatile store when transitioned high with INC high. The device enters standby mode (≤500µA) when deselected and recalls last stored position on power-up.

Key Specifications

Pinout & Package

Package: 8-lead MSOP (Pb-free, RoHS compliant), dimensions per JEDEC MO-187-AA (M8.118), body size 3.0mm × 3.0mm × 1.1mm max.

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 X9313ZMIZ-3 offers unique value in industrial systems needing guaranteed power-up repeatability with minimal interface pins and low-resistance matching to legacy analog circuitry.

Availability

X9313ZMIZ-3 is available at Aetrix Electronics and suitable for audio signal conditioning, sensor offset calibration, programmable gain amplification, and power supply feedback networks requiring stable component supply and long-term parameter retention.

Supply support for X9313ZMIZ-3 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 semiconductor provider, now part of Renesas Electronics, with expertise in high-reliability industrial and infrastructure solutions.

The X9313 family was designed specifically for replacing mechanical potentiometers in analog trimming applications where nonvolatile setting retention, low wiper resistance, and robust industrial temperature operation are essential.

FAQ

What is the maximum allowable voltage across RH/VH and RL/VL terminals for X9313ZMIZ-3?

The X9313ZMIZ-3 specifies ΔV = |VH − VL| ≤ 4V for the Z-series variant. This limit is defined in the Absolute Maximum Ratings table and applies regardless of VCC level. Exceeding 4V risks irreversible damage to the internal resistor array switches, even if individual terminal voltages remain within ±VCC bounds.

Does X9313ZMIZ-3 require an external pull-up or pull-down resistor on the INC, U/D, or CS pins?

No, the X9313ZMIZ-3 does not require external biasing resistors on INC, U/D, or CS. These inputs have CMOS-compatible thresholds (VIH ≥ 2V, VIL ≤ 0.8V at VCC = 5V) and leakage current ≤±10µA, allowing direct connection to microcontroller GPIOs. Internal weak pull-downs are not present, so host firmware must drive all control lines definitively.

Can X9313ZMIZ-3 operate with a 3.3V supply while handling ±3.3V analog signals on RH/VH and RL/VL?

Yes, the X9313ZMIZ-3 supports ±VCC terminal voltage tolerance. With VCC = 3.3V, RH/VH and RL/VL may swing from −3.3V to +3.3V, enabling direct interfacing with rail-to-rail op-amps and AC-coupled signals without level-shifting circuitry-provided the 4V ΔV limit between terminals is observed.

How long does it take for X9313ZMIZ-3 to stabilize its wiper position after power-up?

The X9313ZMIZ-3 achieves wiper stability within 10µs after VCC reaches its final value, as specified by tPU (power-up to wiper stable) in the AC Electrical Specifications table. This rapid settling enables immediate use in time-critical analog loops without waiting for initialization sequences.

Is the wiper resistance of X9313ZMIZ-3 constant across all 32 tap positions?

Wiper resistance (RW) is specified as 40Ω typical at VCC = 5V and remains relatively constant across all tap positions, with a maximum of 100Ω. This consistency ensures predictable loading effects in voltage divider or current-setting configurations, unlike mechanical pots whose contact resistance varies significantly with wear and position.