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Renesas X9315UMIZ-2.7
- Part No.:
- X9315UMIZ-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9315UMIZ-2.7.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,684
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Product details
Overview
X9315UMIZ-2.7 from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 31-element resistor array with 32 wiper tap points, nonvolatile wiper position storage, and 3-wire serial interface (CS/U/D/INC). It operates from 2.7V to 5.5V, offers 50kΩ end-to-end resistance, and supports industrial temperature range (–40°C to +85°C) in an 8-lead MSOP package. It functions as a solid-state replacement for mechanical potentiometers in precision analog trimming applications.
For engineers reviewing the X9315UMIZ-2.7 datasheet, X9315UMIZ-2.7 pinout, X9315UMIZ-2.7 application, or X9315UMIZ-2.7 equivalent, this device delivers low-power operation (80µA active, 5µA standby), temperature-compensated linearity (±1 MI absolute, ±0.2 MI relative), and reliable nonvolatile recall - critical for embedded systems requiring repeatable calibration after power cycles.
Technical Context
The X9315UMIZ-2.7 integrates a 5-bit up/down counter, nonvolatile memory for wiper position retention, and a 31-resistor ladder with make-before-break wiper switching. Its control logic responds to CS (chip select), U/D (direction), and edge-triggered INC (increment) signals to move the wiper across discrete taps.
It uses CMOS technology with VCC-referenced terminal voltage limits (0 to VCC), wiper resistance of 400–1000Ω at 2.7V, and ratiometric temperature coefficient of ±20 ppm/°C - ensuring stable voltage-divider behavior across temperature and supply variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7V to 5.5V - supports single-supply battery-powered and mixed-voltage systems without level-shifting. |
| RTOTAL | 50kΩ ±20% - defines full-scale resistance for gain/offset adjustment circuits with predictable tolerance. |
| Wiper Positions | 32 taps (0–31) - provides 3.125% resolution per step for fine analog control in closed-loop systems. |
| Nonvolatile Store/Recall | 100-year data retention, 100,000 write cycles - enables factory calibration persistence and field re-trimming without external EEPROM. |
| Active Current | 80µA max at VCC = 2.7V - minimizes quiescent power in always-on sensor signal conditioning paths. |
| Temp Range | –40°C to +85°C - qualified for industrial-grade operation in automotive ECUs, PLC I/O modules, and outdoor instrumentation. |
| Package | 8-lead MSOP (Pb-free, M8.118) - compact 3.0mm × 3.0mm footprint with thermal resistance θJA = 154°C/W for space-constrained PCBs. |
Pinout & Package
Package: 8-lead Mini Small Outline Plastic (MSOP), Pb-free, JEDEC MO-187AA compliant, dimensions 3.0mm × 3.0mm × 1.1mm (D × E × A2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RH/VH | High terminal | Fixed end of resistor array; connects to VCC or reference voltage; voltage must not exceed VCC. |
| 2: RW/VW | Wiper terminal | Movable output node; series resistance 400–1000Ω at 2.7V; delivers tapped voltage proportional to wiper position. |
| 3: RL/VL | Low terminal | Fixed end of resistor array; connects to VSS or ground; voltage must be ≥ VSS. |
| 4: VSS | Ground | Device substrate reference; all digital inputs referenced to this node; must be connected before VCC. |
| 5: VCC | Supply voltage | Power rail for analog array and digital logic; must be ≥ VH, VL, VW; ramp rate 0.2–50 V/ms. |
| 6: U/D | Direction control | Logic level selects wiper movement direction (HIGH = increment, LOW = decrement) during INC transitions. |
| 7: INC | Increment clock | Negative-edge triggered; toggling moves wiper one tap; HIGH during CS rising edge stores position to NV memory. |
| 8: CS | Chip select | Active-low enable; device responds only when LOW; rising edge with INC = HIGH initiates nonvolatile store. |
Key Features
| Feature | Design Value |
|---|---|
| 3-wire serial interface | Uses only CS, U/D, and INC - eliminates need for SPI/I²C peripherals and reduces MCU GPIO count. |
| Nonvolatile wiper storage | Retains last-set position across power cycles - eliminates boot-time re-initialization in medical or test equipment. |
| Temperature-compensated linearity | ±1 MI absolute and ±0.2 MI relative linearity - ensures consistent gain/attenuation in audio and sensor front-ends over –40°C to +85°C. |
| Low-power standby mode | 5µA max current when CS = HIGH - extends battery life in portable calibrators and handheld meters. |
| Make-before-break wiper switching | Prevents open-circuit transients during tap changes - avoids glitches in feedback loops of DC-DC converters and op-amp gain stages. |
Applications
| Audio Signal Level Control | Sensor Offset Calibration |
|---|---|
|
Use Scenario: Adjusting volume or balance in battery-powered portable audio devices with no mechanical controls. IC Role / Device Role / Timing Role: Functions as a 3-terminal voltage divider between audio source and amplifier input, with wiper position set via microcontroller GPIOs. Use Value: Eliminates wear-prone potentiometers and enables software-controlled presets stored in nonvolatile memory for user profiles. |
Use Scenario: Compensating zero-point drift in bridge-based pressure or load-cell sensors over temperature. IC Role / Device Role / Timing Role: Configured as a two-terminal variable resistor in the reference leg of an instrumentation amplifier, trimming offset voltage. Use Value: Enables automatic self-calibration at startup using stored wiper value, maintaining <±1 mV offset accuracy across –40°C to +85°C. |
| Programmable Gain Amplifier | DC-DC Converter Feedback Divider |
|
Use Scenario: Setting gain in a programmable-gain instrumentation amplifier used in data acquisition systems. IC Role / Device Role / Timing Role: Replaces fixed resistors in the gain-setting network of an op-amp, with wiper position defining Rf/Rin ratio. Use Value: Allows dynamic gain switching without external switches or relays, preserving signal integrity and reducing board area by 40% vs. discrete resistor arrays. |
Use Scenario: Adjusting output voltage of an isolated flyback converter in industrial power supplies. IC Role / Device Role / Timing Role: Acts as upper resistor in feedback voltage divider, with wiper connected to error amplifier input. Use Value: Enables remote voltage programming via MCU and retains last-set output (e.g., 24V → 28V) after power loss - critical for field-serviceable power modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5241BRMZ50 | I²C interface, 256-tap resolution, 50kΩ RTOTAL, 2.7–5.5V supply, but higher wiper resistance (120Ω typ at 5V, unspecified at 2.7V). | Requires I²C master; better resolution but lacks guaranteed 2.7V operation spec and nonvolatile recall on power-up. | Select if I²C bus is available and finer resolution outweighs need for guaranteed power-up wiper recall. |
| MCP41050-I/P | SPITM interface, 256-tap resolution, 50kΩ RTOTAL, 2.7–5.5V, volatile wiper register only (no NV memory). | Needs external MCU firmware to restore wiper position at startup; no built-in nonvolatile store capability. | Select if SPI is preferred and system can manage wiper state in external memory or boot code. |
Compared with AD5241BRMZ50 and MCP41050-I/P, the X9315UMIZ-2.7 uniquely combines guaranteed 2.7V operation, true nonvolatile power-up recall, and minimal 3-wire control - making it optimal for cost-sensitive, space-constrained industrial systems where reliability and simplicity are prioritized over ultra-fine resolution.
Availability
X9315UMIZ-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supplies, and portable audio equipment requiring stable component supply, RoHS-compliant packaging, and long-term lifecycle support.
Supply support for X9315UMIZ-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 (now part of Renesas Electronics) designs high-performance analog and power management ICs, with a legacy in precision linear products and robust industrial-grade components.
The X9315UMIZ-2.7 belongs to Intersil's XDCP™ family of digitally controlled potentiometers, engineered specifically for replacing mechanical trimmers in harsh-environment applications demanding nonvolatile setting retention and low-power operation.
FAQ
What is the minimum supply voltage required for reliable operation of the X9315UMIZ-2.7?
The X9315UMIZ-2.7 is specified for operation from 2.7V to 5.5V. At 2.7V, it maintains full functionality including 32-tap control, nonvolatile store, and wiper resistance ≤1000Ω. Below 2.7V, parameters such as active current and timing margins are not guaranteed per FN8179 Rev.2.00.
Does the X9315UMIZ-2.7 retain its wiper position after power removal?
Yes. The X9315UMIZ-2.7 stores the wiper position in nonvolatile memory upon a valid store command (CS rising edge with INC = HIGH). That value is automatically recalled within 5µs of power-up, ensuring the X9315UMIZ-2.7 resumes operation at the last-saved tap position without MCU intervention.
Can the X9315UMIZ-2.7 be used as a two-terminal variable resistor?
Yes. The X9315UMIZ-2.7 supports two-terminal configuration: connect RH/VH to the voltage source and RL/VL to ground, then use RW/VW as the adjustable output node. In this mode, it behaves as a digitally tuned rheostat with 50kΩ maximum resistance and 32 discrete steps.
What is the wiper resistance specification for the X9315UMIZ-2.7 at 2.7V supply?
Per FN8179 Rev.2.00 Page 6, the wiper resistance (RW) for the X9315UMIZ-2.7 is specified as 400Ω (typical) to 1000Ω (maximum) when VCC = 2.7V - significantly higher than the 200–400Ω range at 5V, reflecting CMOS on-resistance scaling with supply voltage.
Is the X9315UMIZ-2.7 RoHS-compliant and lead-free?
Yes. The "Z" suffix in X9315UMIZ-2.7 denotes Intersil's Pb-free material set with 100% matte tin plating (e3 termination), compliant with RoHS Directive 2011/65/EU and compatible with both SnPb and Pb-free soldering processes per IPC/JEDEC J-STD-020.
X9315UMIZ-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 32
- Resistance (Ohms):
- 50k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-MSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9315UMIZ-2.7 FAQ
1.How can I place an order for X9315UMIZ-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9315UMIZ-2.7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for X9315UMIZ-2.7 reliable?
The price and inventory of X9315UMIZ-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9315UMIZ-2.7 is usually 5 days.
3.What payment methods are accepted for X9315UMIZ-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9315UMIZ-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9315UMIZ-2.7?
X9315UMIZ-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9315UMIZ-2.7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for X9315UMIZ-2.7?
For technical support, including X9315UMIZ-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9315UMIZ-2.7 requirements.
6.How does Aetrix verify that X9315UMIZ-2.7 is sourced from the original manufacturer or authorized distributors?
All X9315UMIZ-2.7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that X9315UMIZ-2.7 meets industry standards.
7.What is the process for return or replacement of X9315UMIZ-2.7?
All X9315UMIZ-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9315UMIZ-2.7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The X9315UMIZ-2.7 part is unused and in its original packaging.
Return procedure for X9315UMIZ-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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