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Renesas X93156UM8I-2.7
- Part No.:
- X93156UM8I-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X93156UM8I-2.7.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,333
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Product details
Overview
X93156UM8I-2.7 from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 32-tap, 50kΩ end-to-end resistance array with nonvolatile wiper position storage, Up/Down serial interface, and operation from 2.7V to 5.5V supply-used for precision analog trimming in LCD bias control, sensor calibration, and programmable gain stages.
For engineers reviewing the X93156UM8I-2.7 datasheet, X93156UM8I-2.7 pinout, X93156UM8I-2.7 application, or X93156UM8I-2.7 equivalent, this page delivers verified electrical specs, terminal roles, real-world use cases, and validated alternative parts for industrial trim and reconfigurable analog signal paths.
Technical Context
The X93156UM8I-2.7 integrates a 31-element resistor ladder, 5-bit up/down counter, nonvolatile EEPROM for wiper position retention, and CMOS control logic-all in an 8-pin MSOP package. Its wiper movement is edge-triggered via INC and direction-controlled by U/D, with CS enabling selection and initiating nonvolatile store on rising edge when INC is high.
It operates as a true three-terminal potentiometer (RH–Rw–RL) or two-terminal variable resistor, supporting terminal voltages from VSS to VCC, ±0.6mA wiper current, and ±1% absolute linearity across 32 taps-enabling stable analog tuning without external memory or microcontroller intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RTOTAL | 50 kΩ ±25% - defines full-scale resistance range for voltage divider or current-limiting configurations |
| VCC Range | 2.7 V to 5.5 V - enables direct compatibility with 3.3 V and 5 V logic/system rails without level shifting |
| Wiper Taps | 32 positions - provides 3.125% resolution per step for fine-grained analog adjustment |
| Nonvolatile Store | 100-year data retention, 200k write cycles - eliminates need for battery-backed RAM or host-initiated restore at power-up |
| Active Current | 250 µA typical at 3 V - supports low-power portable and battery-operated systems |
| Standby Current | 2 µA maximum - enables ultra-low quiescent power during system sleep modes |
| Terminal Voltage Range | 0 V to VCC - allows rail-to-rail analog signal handling without clamping or distortion |
Pinout & Package
Package: 8-lead MSOP (M8.118), RoHS-compliant, Pb-free option available.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INC | Increment clock input | Negative-edge triggered control signal that advances or retreats wiper position based on U/D state |
| 2 U/D | Direction control input | Logic level selects wiper movement direction (up = RH side, down = RL side) during INC transitions |
| 3 RH | High-side fixed terminal | One end of 50 kΩ resistor array; voltage reference point for wiper output relative to U/D direction |
| 4 VSS | Ground reference | System ground connection for all internal logic and resistor array return path |
| 5 Rw | Wiper output terminal | Movable contact point delivering intermediate voltage/current between RH and RL; connects to one of 32 tap nodes |
| 6 RL | Low-side fixed terminal | Opposite end of 50 kΩ resistor array; completes voltage divider or variable resistor function |
| 7 CS | Chip select / store enable | Active-low selection; rising edge with INC high triggers nonvolatile wiper position storage |
| 8 VCC | Supply voltage | Power source for internal logic and resistor array; supports 2.7–5.5 V operation with <2 µA standby draw |
Key Features
| Feature | Design Value |
|---|---|
| 32-tap digital potentiometer | Enables precise, repeatable analog trimming without mechanical wear or drift over time |
| Nonvolatile wiper position storage | Guarantees consistent startup behavior after power cycling-no host MCU initialization required |
| Up/Down serial interface | Requires only three logic lines (CS, U/D, INC); eliminates need for I²C/SPI peripherals or address decoding |
| Low-power CMOS design | Draws ≤2 µA in standby-ideal for always-on sensor front-ends and energy-harvesting applications |
| ±1% absolute linearity | Ensures predictable voltage division across full tap range, critical for calibration accuracy in medical and test equipment |
Applications
| LCD Contrast/Brightness Control | Sensor Offset Calibration |
|---|---|
Use Scenario: Adjusting backlight current and contrast ratio in automotive instrument clusters and industrial HMIs. IC Role / Device Role / Timing Role: Acts as programmable voltage divider setting bias points for LED drivers and gamma correction amplifiers. Use Value: Enables factory-set and user-adjustable display performance without manual potentiometers or firmware updates. | Use Scenario: Compensating thermal drift and manufacturing tolerance in bridge-based pressure sensors. IC Role / Device Role / Timing Role: Provides zero-point offset adjustment in analog signal conditioning chains before ADC sampling. Use Value: Achieves <±1 mV offset correction stability over –40°C to +85°C using nonvolatile tap storage. |
| Programmable Gain Amplifier | Power Supply Trim |
Use Scenario: Configuring gain in instrumentation amplifiers for multi-range data acquisition systems. IC Role / Device Role / Timing Role: Serves as feedback resistor network element in op-amp circuits, dynamically adjusted via Up/Down interface. Use Value: Supports 32 discrete gain steps (e.g., 1× to 100×) with no switching transients or code glitches. | Use Scenario: Fine-tuning output voltage of DC-DC converters in telecom and server power modules. IC Role / Device Role / Timing Role: Functions as adjustable resistor in feedback divider network of voltage-mode controllers. Use Value: Allows post-manufacturing calibration and field-level voltage margining without hardware changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5243BRMZ50 | I²C interface, dual-channel, 50 kΩ, 256 taps, 10-bit resolution | Requires I²C master and supports two independent pots; higher resolution but larger footprint | Choose for systems needing multiple simultaneous adjustments or tighter resolution; not pin-compatible |
| MCP4018T-503E/OT | Up/Down interface, 50 kΩ, 64 taps, SOT-23-6 package, no nonvolatile memory | Smaller size and lower cost, but wiper resets to mid-scale on power-up-requires host restore | Choose for space-constrained, cost-sensitive designs where volatile operation is acceptable |
Compared with AD5243BRMZ50 and MCP4018T-503E/OT, the X93156UM8I-2.7 uniquely combines nonvolatile storage, 3-wire simplicity, and industrial temperature support in an MSOP-8-making it optimal for unattended, long-life analog trim where power-loss resilience is mandatory.
Availability
X93156UM8I-2.7 is available at Aetrix Electronics and suitable for LCD bias control, sensor calibration, programmable gain amplifier configuration, and power supply voltage trimming requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for X93156UM8I-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, designs high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.
The X93156UM8I-2.7 belongs to Intersil's XDCP™ family of digitally controlled potentiometers-engineered for replacing mechanical trimmers in industrial, automotive, and medical systems demanding reliability, nonvolatility, and low-power analog programmability.
FAQ
What is the end-to-end resistance value of the X93156UM8I-2.7?
The X93156UM8I-2.7 has a nominal RTOTAL of 50 kΩ with a tolerance of ±25%, measured between RH and RL terminals. This value is specified over the full industrial temperature range (–40°C to +85°C) and remains stable due to its temperature-compensated resistor array. The actual resistance falls between 37.5 kΩ and 62.5 kΩ under standard operating conditions.
Does the X93156UM8I-2.7 retain its wiper position after power loss?
Yes, the X93156UM8I-2.7 stores the last wiper position in nonvolatile EEPROM memory. Upon power-up, it automatically recalls that stored value and sets the wiper accordingly-no external controller or initialization sequence is needed. Data retention is rated for 100 years, and endurance supports 200,000 store cycles per bit.
What supply voltage range does the X93156UM8I-2.7 support?
The X93156UM8I-2.7 operates from 2.7 V to 5.5 V, making it compatible with both 3.3 V and 5 V system rails. Unlike the standard X93156WM8I variant (5 V ±10%), the "-2.7" suffix explicitly denotes this extended low-voltage capability-verified in the Ordering Information table and Recommended Operating Conditions section of FN8182 Rev 3.00.
Can the X93156UM8I-2.7 be used as a two-terminal variable resistor?
Yes, the X93156UM8I-2.7 can operate as a two-terminal device by connecting either RH or RL to Rw and using the remaining terminal with VSS or VCC. In this mode, it functions as a digitally adjustable rheostat with 32 discrete resistance values ranging from near-zero to 50 kΩ, maintaining the same nonvolatile storage and low-power characteristics as in three-terminal mode.
What is the maximum wiper current rating for the X93156UM8I-2.7?
The X93156UM8I-2.7 specifies a maximum wiper current (IW) of ±0.6 mA, as defined in the Potentiometer Specifications table. Exceeding this limit risks degradation of wiper switch integrity over time. This rating applies across the full operating temperature range and supports safe operation in low-current bias and feedback applications such as op-amp gain setting and sensor offset networks.
X93156UM8I-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:
- ±25%
- Temperature Coefficient (Typ):
- ±35ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-MSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 1100 (Max)
X93156UM8I-2.7 FAQ
1.How can I place an order for X93156UM8I-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X93156UM8I-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 X93156UM8I-2.7 reliable?
The price and inventory of X93156UM8I-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 X93156UM8I-2.7 is usually 5 days.
3.What payment methods are accepted for X93156UM8I-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X93156UM8I-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X93156UM8I-2.7?
X93156UM8I-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X93156UM8I-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 X93156UM8I-2.7?
For technical support, including X93156UM8I-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X93156UM8I-2.7 requirements.
6.How does Aetrix verify that X93156UM8I-2.7 is sourced from the original manufacturer or authorized distributors?
All X93156UM8I-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 X93156UM8I-2.7 meets industry standards.
7.What is the process for return or replacement of X93156UM8I-2.7?
All X93156UM8I-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X93156UM8I-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 X93156UM8I-2.7 part is unused and in its original packaging.
Return procedure for X93156UM8I-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X93156UM8I-2.7 Tags
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