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Renesas X9C503PI
- Part No.:
- X9C503PI
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
X9C503PI.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,397
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Product details
Overview
X9C503PI from Renesas Electronics is a digitally controlled potentiometer (XDCP™) with 50 kΩ end-to-end resistance, 100 wiper tap points, and nonvolatile memory for power-up recall. It implements a 99-element resistor array with make-before-break switching, operates from a single 5 V supply, and interfaces via a three-wire CS/U/D/INC serial protocol. It serves as a solid-state replacement for mechanical potentiometers in precision analog trimming applications such as sensor calibration and power supply feedback networks.
For engineers reviewing the X9C503PI datasheet, X9C503PI pinout, X9C503PI application, or X9C503PI equivalent, key selection criteria include its ±20% end-to-end resistance tolerance, ±5 V terminal voltage range, 40 Ω typical wiper resistance, -40°C to +85°C industrial temperature rating, and PDIP-8 package compatibility with through-hole wave soldering.
Technical Context
The X9C503PI integrates a 7-bit up/down counter, nonvolatile EEPROM storage, and a 99-resistor ladder with electronic wiper switches. Wiper position is updated on negative-edge transitions of INC while CS is low and direction is set by U/D logic level.
It features internal charge pump circuitry enabling ±5 V analog terminal operation from a single 5 V VCC supply, with typical 20 mVRMS noise at 850 kHz. The device enters standby mode (750 µA max) when deselected and retains wiper position for 100 years after storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 50 kΩ ±20% - defines full-scale analog adjustment range and load interaction in voltage divider or variable resistor configurations |
| Wiper Tap Points | 100 positions - provides 1% resolution per step across the resistive array for fine-grained analog control |
| Terminal Voltage Range | ±5 V referenced to VSS - supports bipolar signal conditioning without dual supplies |
| VCC Supply | 5 V ±10% - single-supply operation compatible with standard digital logic rails |
| Wiper Resistance | 40 Ω typical - contributes minimal series impedance in wiper path, critical for low-error current sensing |
| Nonvolatile Storage Endurance | 100,000 write cycles - ensures long-term reliability in field-adjustable systems requiring frequent recalibration |
| Operating Temperature | -40°C to +85°C - qualified for industrial environments including motor drives and instrumentation |
Pinout & Package
Package: 8-lead plastic dual-in-line (PDIP), RoHS-compliant, through-hole mount; dimensions per MDP0031 drawing; suitable for wave solder only (not reflow).
| 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 or down) during each INC transition |
| 3: VH/RH | High-side fixed terminal | Analog terminal with ±5 V rating; functions as one end of potentiometer; polarity label reflects wiper motion direction, not voltage potential |
| 4: VSS | Ground reference | Primary return path for VCC and analog terminals; all voltage ratings referenced to this node |
| 5: VW/RW | Wiper output terminal | Movable analog node with 40 Ω typical series resistance; connects to one of 100 tap points under digital control |
| 6: VL/RL | Low-side fixed terminal | Analog terminal with ±5 V rating; functions as opposite end of potentiometer; polarity label reflects wiper motion direction, not voltage potential |
| 7: CS | Chip select input | Active-low enable; storage to nonvolatile memory occurs when CS rises while INC is high |
| 8: VCC | Positive supply | 5 V ±10% digital/analog supply powering logic, memory, and internal charge pump |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, contact bounce, and vibration sensitivity inherent in rotary potentiometers |
| Three-wire serial interface | Requires only CS, U/D, and INC signals - no clock or data lines needed, minimizing MCU GPIO usage |
| Nonvolatile wiper position storage | Recalls last-set value on power-up, enabling consistent startup behavior without host initialization |
| Temperature-compensated resistor array | ±300 ppm/°C RTOTAL drift - maintains stable resistance ratio over industrial temperature range |
| Make-before-break wiper switching | Prevents open-circuit transients during position changes, avoiding signal dropout in sensitive analog paths |
Applications
| Audio Signal Level Control | Power Supply Feedback Trimming |
|---|---|
|
Use Scenario: Adjusting gain or volume in line-level audio circuits without manual knobs or mechanical wear. IC Role / Device Role / Timing Role: Two-terminal variable resistor configured between op-amp feedback path and ground to set closed-loop gain. Use Value: Enables remote or automated calibration via microcontroller; eliminates need for front-panel potentiometers and associated panel cutouts. |
Use Scenario: Fine-tuning output voltage of adjustable DC-DC converters or linear regulators during production or field service. IC Role / Device Role / Timing Role: Three-terminal potentiometer replacing mechanical trimmer in feedback divider network of TL317 or LM317-based regulators. Use Value: Allows factory-programmed output voltage or user-adjustable setpoint with nonvolatile retention across power cycles. |
| Sensor Offset Calibration | Industrial Process Loop Adjustment |
|
Use Scenario: Compensating zero-point drift in pressure, temperature, or current-sense amplifier outputs. IC Role / Device Role / Timing Role: Variable resistor in offset null circuit of instrumentation amplifier (e.g., AD620) or op-amp summing junction. Use Value: Supports automated calibration routines during manufacturing test; retains calibrated offset without battery backup. |
Use Scenario: Setting proportional band or bias point in analog PID controllers or PLC analog I/O modules. IC Role / Device Role / Timing Role: Adjustable voltage divider feeding setpoint comparator or analog-to-digital converter reference input. Use Value: Enables field technicians to tune loop parameters without opening enclosures or handling fragile mechanical components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5204BRZ10 | Quad-channel, 10 kΩ, SPI interface, 256-tap resolution, ±30% RAB tolerance | Higher channel count but lower single-channel resolution and wider resistance tolerance than X9C503PI | Select for multi-pot systems needing SPI bus efficiency; avoid where 50 kΩ value or tight ±20% tolerance is required |
| MCP41050-I/P | Single-channel, 50 kΩ, SPI interface, 257-tap resolution, ±20% RAB, 1.8–5.5 V supply | Same resistance value and tolerance, but SPI instead of up/down interface and wider VCC range | Choose when existing design uses SPI peripherals; note different command protocol and lack of automatic power-up recall without external initialization |
Compared with AD5204BRZ10 and MCP41050-I/P, the X9C503PI offers deterministic three-wire timing, guaranteed power-up wiper recall without host firmware, and industrial-grade temperature stability-making it optimal for standalone analog trimming where simplicity and reliability outweigh multi-channel or SPI integration needs.
Availability
X9C503PI is available at Aetrix Electronics and suitable for industrial instrumentation, power supply calibration, and sensor signal conditioning requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for X9C503PI 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
Renesas Electronics is a global semiconductor manufacturer specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The X9C503PI belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in analog signal paths where long-term stability, programmability, and nonvolatile setting retention are essential.
FAQ
What is the maximum allowable voltage across the VH/RH and VL/RL terminals for the X9C503PI?
The X9C503PI allows a maximum differential voltage of 10 V between VH/RH and VL/RL terminals, as specified in the Absolute Maximum Ratings table. This limit applies regardless of individual terminal voltages, which must each remain within -5 V to +5 V relative to VSS. Exceeding 10 V risks irreversible damage to the internal resistor array and wiper switches.
Does the X9C503PI retain its wiper position after power cycling?
Yes, the X9C503PI retains its wiper position after power cycling. When CS is raised high while INC is high, the current wiper position is stored into nonvolatile EEPROM memory. Upon subsequent power-up, once VCC reaches its final value, the stored position is automatically recalled and applied to the wiper, ensuring consistent startup behavior without host intervention.
Can the X9C503PI be used with a 3.3 V microcontroller interface?
Yes, the X9C503PI can interface with 3.3 V microcontrollers. Its CS, U/D, and INC inputs accept VIH ≥ 2 V and VIL ≤ 0.8 V, fully compatible with 3.3 V logic levels. However, VCC must still be 5 V ±10%, as the internal charge pump and analog section require this supply to support ±5 V terminal operation.
What is the wiper resistance specification for the X9C503PI and why does it matter?
The X9C503PI has a typical wiper resistance of 40 Ω, with a maximum of 100 Ω. This series resistance directly adds to measurement or feedback path impedance, affecting accuracy in precision applications like current sensing or high-gain op-amp circuits. Designers must account for it in error budgets-especially when using low-resistance potentiometer values or high-precision analog signal chains.
Is the X9C503PI RoHS compliant and what packaging options are available?
Yes, the X9C503PI is RoHS compliant and offered in Pb-free PDIP-8 packaging (MDP0031 drawing). The "PI" suffix denotes the industrial temperature grade (-40°C to +85°C) and PDIP package. Note that Pb-free PDIP variants are qualified for wave soldering only-not reflow-and must not be subjected to peak reflow temperatures.
X9C503PI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 100
- Resistance (Ohms):
- 50k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-PDIP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9C503PI FAQ
1.How can I place an order for X9C503PI through Aetrix?
Please submit a Request for Quotation (RFQ) for X9C503PI 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 X9C503PI reliable?
The price and inventory of X9C503PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9C503PI is usually 5 days.
3.What payment methods are accepted for X9C503PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9C503PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9C503PI?
X9C503PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9C503PI 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 X9C503PI?
For technical support, including X9C503PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9C503PI requirements.
6.How does Aetrix verify that X9C503PI is sourced from the original manufacturer or authorized distributors?
All X9C503PI 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 X9C503PI meets industry standards.
7.What is the process for return or replacement of X9C503PI?
All X9C503PI units undergo pre-shipment inspection (PSI). If there is an issue with X9C503PI, 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 X9C503PI part is unused and in its original packaging.
Return procedure for X9C503PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9C503PI Tags
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MCP4018T-103E/LT
Microchip Technology
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MCP4018T-503E/LT
Microchip Technology
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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
Microchip Technology
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MCP4022T-503E/CH
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MCP4551T-502E/MS
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