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Renesas X93156UM8IZ-2.7
- Part No.:
- X93156UM8IZ-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X93156UM8IZ-2.7.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,218
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Product details
Overview
X93156UM8IZ-2.7 from Intersil is a digitally controlled potentiometer (XDCP™) with 32-tap resolution, 50kΩ end-to-end resistance, Up/Down serial interface, and nonvolatile wiper position storage. It operates from 2.7V to 5.5V, draws 200µA typical active current, and is housed in an 8-lead MSOP package. It serves as a precision trim element in LCD contrast control, bias voltage programming, and analog signal conditioning circuits.
For engineers reviewing the X93156UM8IZ-2.7 datasheet, X93156UM8IZ-2.7 pinout, X93156UM8IZ-2.7 application, or X93156UM8IZ-2.7 equivalent, this device delivers deterministic wiper positioning, low-noise (-120 dBV) analog performance, RoHS-compliant Pb-free packaging, and guaranteed 100-year data retention - critical for industrial calibration and long-lifecycle embedded systems.
Technical Context
The X93156UM8IZ-2.7 implements a 31-element resistor array with CMOS-controlled transfer gates and a 5-bit up/down counter driving wiper selection logic. Its nonvolatile memory stores wiper position upon CS↑ with INC↑, enabling automatic power-up recall without external configuration.
It uses a negative-edge-triggered INC input and level-sensitive U/D control to move the wiper terminal (Rw) between RH and RL terminals. Terminal voltages are rail-to-rail (0 to VCC), wiper resistance is 1.1kΩ max, and absolute linearity error is ±1 MI (minimum increment), ensuring predictable voltage division across all 32 taps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RTOTAL | 50 kΩ ±25% - defines full-scale resistance range for analog scaling and bias setting |
| VCC Range | 2.7 V to 5.5 V - supports single-supply operation across battery-powered and industrial 3.3V/5V systems |
| Wiper Resolution | 32 taps (5-bit) - enables 3.125% step granularity for fine analog adjustment |
| Active Current | 200 µA typ. at 3V - minimizes system power budget impact during dynamic trimming |
| Standby Current | 2 µA max. - preserves battery life in always-on or low-duty-cycle applications |
| Nonvolatile Retention | 100 years - eliminates need for periodic recalibration or backup power in field-deployed equipment |
| Endurance | 200,000 wiper position changes - supports frequent reconfiguration in test and calibration environments |
| Terminal Voltage Range | 0 V to VCC - allows direct connection to rail-referenced analog nodes without level-shifting |
Pinout & Package
Package: 8-lead MSOP (Pb-free, RoHS compliant), JEDEC MO-187AA footprint (M8.118), 3.0 mm × 4.9 mm body size, 0.65 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - INC | Increment clock input | Negative-edge-triggered control signal that advances or retreats wiper position per U/D state |
| 2 - U/D | Direction control input | Logic level determines whether INC edge increments (U/D = HIGH) or decrements (U/D = LOW) wiper |
| 3 - RH | High-side fixed terminal | One end of resistor array; voltage range = 0 V to VCC; polarity relative to U/D direction |
| 4 - VSS | Ground reference | System ground return for internal logic and resistor array; must be stable and low-impedance |
| 5 - Rw | Wiper output terminal | Movable tap point delivering intermediate voltage; wiper resistance ≤1.1 kΩ affects loading accuracy |
| 6 - RL | Low-side fixed terminal | Other end of resistor array; complements RH to form full potentiometer structure |
| 7 - CS | Chip select / store enable | Active-low selection; rising edge with INC HIGH initiates nonvolatile store of current wiper position |
| 8 - VCC | Power supply | Single positive supply for logic and analog sections; supports 2.7–5.5 V with <150 mV droop during write |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear, contact bounce, and environmental drift inherent in electro-mechanical pots |
| Nonvolatile wiper position storage | Automatically restores last-trimmed value at power-up - no host MCU initialization required |
| Low-noise analog performance | -120 dBV noise floor referenced to 1 kHz - suitable for audio-level and precision sensor signal paths |
| Rail-to-rail terminal voltage support | Enables direct interfacing with op-amp inputs, ADC references, and comparator thresholds without clamping |
| Temperature-compensated resistor array | ±35 ppm/°C RTOTAL drift - maintains ratio accuracy across -40°C to +85°C industrial temperature range |
| Pb-free MSOP package | RoHS-compliant 8-lead MSOP with matte tin e3 termination - compatible with SnPb and Pb-free reflow profiles |
Applications
| LCD Contrast Control | Bias Voltage Programming |
|---|---|
|
Use Scenario: Adjusting contrast in monochrome or segment-based LCD displays in portable instrumentation and industrial HMI panels. IC Role / Device Role / Timing Role: Two-terminal variable resistor between VLC and ground, setting voltage divider ratio for LCD backplane drive. Use Value: Enables factory-set or user-adjustable contrast without mechanical trimpots; retains setting across power cycles. |
Use Scenario: Setting precise DC bias points for op-amps, comparators, and RF front-end amplifiers in test equipment and signal chains. IC Role / Device Role / Timing Role: Three-terminal potentiometer providing adjustable reference voltage or gain-setting network. Use Value: Delivers stable, repeatable bias under temperature variation and long-term operation due to ±35 ppm/°C TC and 100-year retention. |
| Analog Signal Trimming | Calibration Resistor Network |
|
Use Scenario: Fine-tuning offset and gain in analog sensor signal conditioning circuits (e.g., thermocouple amplifiers, strain gauge bridges). IC Role / Device Role / Timing Role: Programmable ladder node in precision resistor networks used for DAC output scaling or sensor linearization. Use Value: Achieves ±1 MI absolute linearity and 3% resolution - sufficient for 10-bit system accuracy without iterative calibration. |
Use Scenario: Replacing discrete trimmer arrays in automated test equipment where field recalibration is required via firmware. IC Role / Device Role / Timing Role: Digitally reconfigurable resistance element in multi-point calibration lookup tables stored in host MCU. Use Value: Supports 200,000 endurance cycles - enables hundreds of daily calibrations over 10+ years of service life. |
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, 256-tap resolution, 50kΩ, 2.7–5.5V, 500nA standby | Requires I²C bus and address management; better resolution but higher interface complexity | Select when multi-channel coordination or finer resolution is needed; not drop-in for Up/Down control systems |
| MCP4018T-503E/MS | Up/Down interface, 32-tap, 50kΩ, 1.8–5.5V, 0.5µA standby, SOT-23-8 package | Lower VCC min (1.8V), smaller footprint, but no nonvolatile storage - wiper resets on power cycle | Select for ultra-low-power or space-constrained designs where volatile operation is acceptable |
Compared with AD5243BRMZ50 and MCP4018T-503E/MS, the X93156UM8IZ-2.7 uniquely combines Up/Down simplicity, nonvolatile recall, and industrial-grade reliability - making it optimal for maintenance-free analog trimming in unattended equipment.
Availability
X93156UM8IZ-2.7 is available at Aetrix Electronics and suitable for LCD contrast control, analog sensor biasing, and calibration resistor networks requiring stable component supply, long-term data retention, and RoHS-compliant packaging.
Supply support for X93156UM8IZ-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 semiconductor design house specializing in high-performance analog and mixed-signal ICs for industrial, computing, and communications markets.
The X93156 series was designed as a solid-state replacement for mechanical potentiometers in precision analog trimming applications - emphasizing nonvolatility, low power, and robustness across extended temperature ranges.
FAQ
What is the maximum wiper current rating for the X93156UM8IZ-2.7?
The X93156UM8IZ-2.7 supports a maximum wiper current (IW) of ±0.6 mA, as specified in the Potentiometer Specifications table. Exceeding this limit risks increased wiper resistance drift or long-term degradation. This rating applies across the full -40°C to +85°C operating range and ensures reliable operation when used as a two-terminal variable resistor in bias networks or voltage dividers.
Does the X93156UM8IZ-2.7 retain its wiper position after power loss?
Yes, the X93156UM8IZ-2.7 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This occurs only if the wiper position was previously stored using the CS↑/INC↑ sequence. The data retention specification is 100 years, verified per JEDEC standards, making X93156UM8IZ-2.7 suitable for applications where manual or MCU-initiated recalibration is impractical.
Can the X93156UM8IZ-2.7 operate from a 3.3V supply?
Yes, the X93156UM8IZ-2.7 is fully specified for operation from 2.7V to 5.5V, including standard 3.3V systems. At VCC = 3V, its typical active current is 50 µA (increment mode), standby current is 1 µA, and all timing parameters (e.g., tCYC = 2 µs) remain valid. The device maintains rail-to-rail terminal voltage capability (0 to 3.3V), supporting direct integration into 3.3V analog signal paths.
What is the absolute linearity error of the X93156UM8IZ-2.7?
The X93156UM8IZ-2.7 has an absolute linearity error of ±1 MI (minimum increment), where MI = RTOTAL/31 ≈ 1.613 kΩ for the 50 kΩ version. This means the actual wiper voltage deviates by no more than ±1 step from the ideal linear interpolation across all 32 taps. This specification is measured over the full industrial temperature range and supports accurate analog scaling in 10-bit-equivalent systems.
Is the X93156UM8IZ-2.7 pin-compatible with other members of the X93156 family?
Yes, all X93156 variants - including X93156UM8IZ-2.7, X93156WM8IZ-2.7, and X93156UM8I-2.7 - share identical 8-lead MSOP pinouts and electrical interface behavior. Differences are limited to RTOTAL (50kΩ vs. 12.5kΩ) and Pb-free marking; no PCB layout change is required when substituting within the same RTOTAL group and voltage range.
X93156UM8IZ-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)
X93156UM8IZ-2.7 FAQ
1.How can I place an order for X93156UM8IZ-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X93156UM8IZ-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 X93156UM8IZ-2.7 reliable?
The price and inventory of X93156UM8IZ-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 X93156UM8IZ-2.7 is usually 5 days.
3.What payment methods are accepted for X93156UM8IZ-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X93156UM8IZ-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X93156UM8IZ-2.7?
X93156UM8IZ-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X93156UM8IZ-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 X93156UM8IZ-2.7?
For technical support, including X93156UM8IZ-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X93156UM8IZ-2.7 requirements.
6.How does Aetrix verify that X93156UM8IZ-2.7 is sourced from the original manufacturer or authorized distributors?
All X93156UM8IZ-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 X93156UM8IZ-2.7 meets industry standards.
7.What is the process for return or replacement of X93156UM8IZ-2.7?
All X93156UM8IZ-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X93156UM8IZ-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 X93156UM8IZ-2.7 part is unused and in its original packaging.
Return procedure for X93156UM8IZ-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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