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Renesas X93154UU8IZ-3T1
- Part No.:
- X93154UU8IZ-3T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-VFDFN Exposed Pad
- Datasheet:
-
X93154UU8IZ-3T1.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,054
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Product details
Overview
X93154UU8IZ-3T1 from Intersil is a low-noise, low-power, 32-tap digitally controlled potentiometer (XDCP™) implemented with 31 resistive elements and nonvolatile memory. It functions as a two-terminal variable resistor with 50 kΩ end-to-end resistance, ±30% tolerance, and operates from 3V ±10% supply. Used for precision bias/gain control and LCD contrast adjustment in industrial embedded systems.
For engineers reviewing the X93154UU8IZ-3T1 datasheet, X93154UU8IZ-3T1 pinout, X93154UU8IZ-3T1 application, or X93154UU8IZ-3T1 equivalent, key selection factors include its 3-wire serial interface, wiper position retention across power cycles, 250 µA max active current, 1 µA standby current, and MSOP-8 package compatibility with space-constrained analog trimming designs.
Technical Context
The X93154UU8IZ-3T1 integrates a 5-bit up/down counter, nonvolatile EEPROM storage, and a 31-element resistor array with decoded wiper switching. Wiper position is updated on negative-edge transitions of INC, directionally controlled by U/D, and latched into memory when CS rises while INC is high.
It supports true two-terminal operation between RH and RL, with terminal voltage range from VSS to VCC, and features temperature-compensated resistance (±35 ppm/°C), 3% resolution, and ±1 MI absolute linearity - all verified across –40°C to +85°C industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 50 kΩ nominal (35–65 kΩ min/max); defines full-scale analog adjustment range in voltage divider or current-limiting configurations. |
| Wiper Resolution | 32 taps (5-bit counter); enables discrete 3.125% step increments across total resistance for repeatable analog tuning. |
| Supply Voltage | 3V ±10% (2.7–3.3V); compatible with single-supply 3.3V systems without level-shifting circuitry. |
| Active Current | 250 µA max; enables battery-powered or ultra-low-power analog trim applications with minimal quiescent load. |
| Standby Current | 1 µA max; preserves system energy budget during idle periods while retaining wiper state in nonvolatile memory. |
| Nonvolatile Retention | 100 years; ensures factory-set or field-calibrated trim values persist over product lifetime without refresh. |
| Temperature Coefficient | ±35 ppm/°C; maintains stable resistance ratio across industrial temperature range, critical for gain/bias stability. |
Pinout & Package
Package: 8-lead MSOP (M8.118), Pb-free/RoHS-compliant, 3.0 mm × 4.9 mm footprint with 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INC | Increment clock input | Negative-edge-triggered control signal; toggling moves wiper one tap in direction set by U/D; requires clean, monotonic transitions. |
| 2 U/D | Direction control input | Static logic level (VIL/VIH) determining wiper increment/decrement path; may be changed dynamically during CS-active window. |
| 3 RH | High terminal | Fixed end of resistor array; voltage range 0 to VCC; polarity relative to RL depends on U/D-selected wiper direction. |
| 4 VSS | Ground reference | Primary return path for supply and signal currents; must be low-impedance to minimize noise coupling into resistor array. |
| 5 NC | No connection | Internally unconnected; may float or be tied to any voltage between VSS and VCC; no functional impact if left open. |
| 6 RL | Low terminal | Fixed end of resistor array; complementary to RH; forms two-terminal variable resistance with RH when wiper is unused. |
| 7 CS | Chip select | Active-low enable; initiates wiper update when low; stores current position to EEPROM when rising edge occurs with INC = high. |
| 8 VCC | Supply voltage | 3V ±10% power source; internal regulation not provided; requires local 100 nF bypass capacitor per datasheet layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Wiper position retained across power cycles without external backup; eliminates need for initialization firmware or external EEPROM. |
| 3-wire serial interface | Requires only INC, U/D, and CS signals - no clock or data lines - simplifying MCU GPIO usage and reducing PCB routing complexity. |
| Low power operation | 250 µA active / 1 µA standby current enables use in always-on sensor nodes and portable instrumentation with multi-year battery life. |
| Temperature-compensated array | ±35 ppm/°C TC ensures <±0.3% resistance drift over –40°C to +85°C, preserving calibration integrity in uncontrolled environments. |
| High reliability endurance | 200,000 write cycles per bit supports frequent field recalibration or adaptive trimming without wear-out concerns. |
Applications
| LCD Contrast Control | Bias Voltage Trimming |
|---|---|
Use Scenario: Adjusting contrast in monochrome or segment-based LCD displays within industrial HMIs or medical panels. IC Role / Device Role / Timing Role: Two-terminal variable resistor setting voltage divider ratio between VCC and ground to generate adjustable bias for LCD backplane drive. Use Value: Eliminates mechanical potentiometer wear and drift; enables factory calibration storage and remote contrast updates via MCU command. | Use Scenario: Fine-tuning reference voltage or amplifier bias point in precision analog front-ends for sensors or data acquisition. IC Role / Device Role / Timing Role: Digitally programmable resistor replacing manual trimmer in feedback or reference paths of op-amp circuits. Use Value: Enables automated calibration during production test and field compensation for thermal drift without hardware modification. |
| Gain Adjustment in Instrumentation Amplifiers | Micro-Power Sensor Signal Conditioning |
Use Scenario: Setting programmable gain in low-noise instrumentation amplifiers used in portable diagnostic equipment. IC Role / Device Role / Timing Role: Configuring feedback resistance in gain-setting network of IA or op-amp stages to achieve discrete gain steps. Use Value: Provides 32 precise gain options with <±1 MI linearity, supporting auto-ranging and dynamic range optimization in battery-powered devices. | Use Scenario: Calibrating offset or sensitivity in ultra-low-power sensor signal chains (e.g., thermistor, RTD, or bridge sensors). IC Role / Device Role / Timing Role: Two-terminal resistor in Wheatstone bridge completion or amplifier offset nulling network. Use Value: Delivers 1 µA standby draw and 100-year data retention - enabling decades-long calibration stability in sealed environmental monitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5175BRMZ-50 | 256-tap I²C interface, 50 kΩ, 10-bit resolution; higher resolution but requires I²C bus and 5V-compatible logic. | Supports more granular adjustments and multi-device addressing; less suitable for minimal-GPIO or 3V-only microcontrollers. | Select AD5175BRMZ-50 when higher resolution and bus-based configuration are required; avoid if GPIO count or 3V-only operation is constrained. |
| MCP41HV51-503 | 100 kΩ variant, SPI interface, 3.3V/5V tolerant; lacks nonvolatile memory - wiper resets to mid-scale on power-up. | Requires host MCU to reinitialize wiper position at boot; unsuitable for applications needing guaranteed power-on state. | Select MCP41HV51-503 only when SPI interface and higher voltage tolerance are prioritized over nonvolatile retention. |
Compared with AD5175BRMZ-50 and MCP41HV51-503, the X93154UU8IZ-3T1 uniquely delivers 32-tap precision with zero-configuration power-on recall in a minimal 3-wire interface - making it optimal for cost-sensitive, space-constrained, and initialization-free analog trimming.
Availability
X93154UU8IZ-3T1 is available at Aetrix Electronics and suitable for LCD contrast control, bias voltage trimming, and gain adjustment applications requiring stable component supply, long-term calibration retention, and industrial temperature operation.
Supply support for X93154UU8IZ-3T1 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 company specializing in precision analog, power management, and interface ICs for industrial, computing, and communications markets.
The X93154UU8IZ-3T1 belongs to Intersil's XDCP™ family of digitally controlled potentiometers, designed specifically to replace mechanical trimmers in analog signal-path calibration where reliability, repeatability, and nonvolatile setting retention are essential.
FAQ
What is the operating voltage range for the X93154UU8IZ-3T1?
The X93154UU8IZ-3T1 operates from 3V ±10%, i.e., 2.7V to 3.3V. Its absolute maximum supply rating is +6.5V, but sustained operation outside the recommended range risks parametric deviation and reduced reliability. The device is not rated for 5V operation, and VCC must remain ≥ RH/RL voltages at all times per datasheet safety requirements.
Does the X93154UU8IZ-3T1 retain its wiper position after power loss?
Yes, the X93154UU8IZ-3T1 stores the last wiper position in nonvolatile EEPROM memory. Upon power-up, it automatically recalls that value and sets the wiper accordingly - no host initialization is required. This behavior is enabled by holding CS high during power-up, as specified in the FN8180 datasheet Section "Power-Up and Power-Down Requirements".
How many wiper positions does the X93154UU8IZ-3T1 support, and what is the step resolution?
The X93154UU8IZ-3T1 supports 32 discrete wiper tap points, corresponding to a 5-bit counter. Each step represents approximately 3.125% of total resistance (RTOTAL/31 ≈ 1.613 kΩ per step for 50 kΩ). Absolute linearity is ±1 MI (minimum increment), ensuring predictable voltage division across the full range.
Can the X93154UU8IZ-3T1 be used as a three-terminal potentiometer?
No - the X93154UU8IZ-3T1 is configured exclusively as a two-terminal variable resistor (RH to RL). The wiper terminal is internal and not brought out; only RH, RL, and control pins are accessible. It cannot function as a traditional three-terminal potentiometer with an external wiper connection.
What is the maximum current rating for the resistor terminals of the X93154UU8IZ-3T1?
The X93154UU8IZ-3T1 has a maximum resistor current rating of 2 mA, and a maximum wiper current of 0.6 mA. Exceeding these limits risks thermal overstress and long-term resistance drift. At 50 kΩ and 3V, the theoretical max current is 60 µA - well within safe operating area, confirming suitability for low-current analog biasing.
X93154UU8IZ-3T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Rheostat
- 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 ~ 3.3V
- Features:
- -
- Tolerance:
- ±30%
- Temperature Coefficient (Typ):
- ±35ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-TDFN (2.5x2.0)
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 1000 (Max)
X93154UU8IZ-3T1 FAQ
1.How can I place an order for X93154UU8IZ-3T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X93154UU8IZ-3T1 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 X93154UU8IZ-3T1 reliable?
The price and inventory of X93154UU8IZ-3T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X93154UU8IZ-3T1 is usually 5 days.
3.What payment methods are accepted for X93154UU8IZ-3T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X93154UU8IZ-3T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X93154UU8IZ-3T1?
X93154UU8IZ-3T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X93154UU8IZ-3T1 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 X93154UU8IZ-3T1?
For technical support, including X93154UU8IZ-3T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X93154UU8IZ-3T1 requirements.
6.How does Aetrix verify that X93154UU8IZ-3T1 is sourced from the original manufacturer or authorized distributors?
All X93154UU8IZ-3T1 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 X93154UU8IZ-3T1 meets industry standards.
7.What is the process for return or replacement of X93154UU8IZ-3T1?
All X93154UU8IZ-3T1 units undergo pre-shipment inspection (PSI). If there is an issue with X93154UU8IZ-3T1, 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 X93154UU8IZ-3T1 part is unused and in its original packaging.
Return procedure for X93154UU8IZ-3T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X93154UU8IZ-3T1 Tags
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MCP4018T-103E/LT
Microchip Technology
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MCP4018T-503E/LT
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MCP4011T-103E/SN
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MCP4018T-104E/LT
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MCP4017T-503E/LT
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MCP4018T-502E/LT
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MCP4017T-103E/LT
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MCP4531T-103E/MF
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MCP4021T-202E/SN
Microchip Technology
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MCP4023T-103E/CH
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MCP4022T-503E/CH
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MCP4551T-502E/MS
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