Renesas X95820WV14IZ-2.7

Overview

X95820WV14IZ-2.7 from Intersil is a dual digital controlled potentiometer (XDCP™) with I²C interface, 256-tap resolution, 10 kΩ end-to-end resistance, and non-volatile wiper position storage-used for precision analog voltage division and rheostat-mode adjustments in sensor calibration and audio level control circuits.

For engineers reviewing the X95820WV14IZ-2.7 datasheet, X95820WV14IZ-2.7 pinout, X95820WV14IZ-2.7 application, or X95820WV14IZ-2.7 equivalent, this page delivers verified electrical specs, I²C timing constraints, wiper register behavior, power-up recall behavior, and real-world design implications for embedded analog tuning.

Technical Context

The X95820WV14IZ-2.7 integrates two independent 8-bit volatile Wiper Registers (WR0/WR1) and corresponding non-volatile Initial Value Registers (IVR0/IVR1), enabling persistent wiper state across power cycles. Each DCP supports both voltage divider mode (RH–RL–RW) and rheostat mode (RW–RL or RW–RH).

I²C communication uses a 7-bit slave address formed by A2/A1/A0 pins (up to eight devices per bus), with hardware write protection via active-low WP pin. Power-on recall loads IVR contents into WRs within 3 ms after VCC exceeds 1.8 V, and standby current remains below 5 µA at 5.5 V.

Key Specifications

Pinout & Package

14-lead TSSOP (Thin Shrink Small Outline Plastic) package, RoHS-compliant Pb-free plus anneal finish, 5.0 mm × 4.4 mm body, 0.65 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5242BRUZ10 and MCP45HV51-103E/ST, the X95820WV14IZ-2.7 uniquely combines dual-channel integration, hardware write protection, non-volatile wiper recall, and ultra-stable ratiometric performance-making it optimal for unattended, field-calibrated analog systems.

Availability

X95820WV14IZ-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, audio equipment manufacturing, and programmable power supply design requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for X95820WV14IZ-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

Intersil Corporation (now part of Renesas Electronics) is a U.S.-based analog and mixed-signal IC designer known for precision data converters, power management, and interface solutions.

The X95820 product line targets digitally programmable analog tuning in space-constrained, low-power systems-designed specifically for replacing mechanical potentiometers in industrial, medical, and audio applications where repeatability and non-volatility matter.

FAQ

What is the default wiper position of X95820WV14IZ-2.7 at power-up?

At power-up, the X95820WV14IZ-2.7 initializes both volatile Wiper Registers (WR0 and WR1) to 0x80 (128 decimal), placing each wiper at mid-scale between RH and RL. This occurs after VCC exceeds 1.8 V and completes within 3 ms, followed by automatic loading of non-volatile IVR values if previously stored.

Can X95820WV14IZ-2.7 operate reliably at 2.7 V supply?

Yes, X95820WV14IZ-2.7 is fully specified for 2.7 V to 5.5 V operation. At 2.7 V, standby current is ≤2 µA, wiper resistance is 70 Ω typical, and I²C timing parameters (e.g., tLOW ≥1300 ns) remain valid-enabling direct use in 2.7 V battery-powered instrumentation.

How does the WP pin affect I²C write operations on X95820WV14IZ-2.7?

The WP pin on X95820WV14IZ-2.7 is active-low hardware write protection. When WP is low, the device ignores all I²C write commands-including volatile and non-volatile register writes-and responds with no ACK. Writes resume only when WP is returned high.

What is the maximum clock frequency supported by the I²C interface of X95820WV14IZ-2.7?

The X95820WV14IZ-2.7 supports standard and fast-mode I²C up to 400 kHz. Its timing specifications-including tLOW ≥1300 ns and tHIGH ≥600 ns-are guaranteed across the full operating temperature range (−40°C to +85°C) and supply range (2.7 V to 5.5 V).

Does X95820WV14IZ-2.7 support true dual independent potentiometer operation?

Yes, X95820WV14IZ-2.7 provides two electrically isolated DCPs (DCP0 and DCP1), each with dedicated RH/RL/RW pins and independent Wiper Registers (WR0/WR1) and Initial Value Registers (IVR0/IVR1). Channel-to-channel matching is ±2 LSB in voltage divider mode.