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Renesas X9C503SIZ
- Part No.:
- X9C503SIZ
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9C503SIZ.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,839
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Product details
Overview
X9C503SIZ from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with nonvolatile wiper position storage, 50kΩ end-to-end resistance, ±20% tolerance, and three-wire serial interface (CS/U/D/INC). It operates from a single 5V supply, supports ±5V terminal voltages, and is used for precision analog trimming in power supply feedback loops, sensor calibration circuits, and programmable gain amplifiers.
For engineers reviewing the X9C503SIZ datasheet, X9C503SIZ pinout, X9C503SIZ application, or X9C503SIZ equivalent, this page delivers verified specifications, SOIC-8 package details, wiper control timing constraints, nonvolatile store/reload behavior, and real-world use cases requiring stable, reprogrammable resistance without mechanical wear.
Technical Context
The X9C503SIZ uses a 7-bit up/down counter driving a 100-tap decoder to select wiper position across a temperature-compensated 99-resistor array. Wiper movement is negative-edge triggered on INC, direction-controlled by U/D, and enabled by active-low CS.
Nonvolatile memory stores the wiper value when CS rises while INC is high; recall occurs automatically at power-up. The internal charge pump enables ±5V analog voltage operation with a typical 40Ω wiper resistance and 20mVRMS charge pump noise at 850kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 50kΩ ±20% - defines full-scale adjustment range for voltage divider or variable resistor configurations |
| Wiper Tap Points | 100 positions (0–99) - provides 1% resolution per step; minimum increment = RTOTAL/99 ≈ 505Ω |
| Terminal Voltage Range | ±5V referenced to VSS - supports bipolar signal conditioning without dual supplies |
| VCC Supply | 5V ±10% - single-supply operation compatible with standard logic and analog rails |
| Active Current | ≤3mA - low power draw during wiper adjustment; suitable for battery-backed or energy-conscious systems |
| Standby Current | ≤750µA - enables extended idle periods between adjustments without significant quiescent loss |
| Wiper Resistance | 40Ω typical - introduces minimal series impedance in signal paths; critical for low-gain amplifier feedback |
| Temperature Coefficient | ±300 ppm/°C - ensures stable resistance over industrial range (−40°C to +85°C) |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, surface-mount, industrial temperature grade (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INC | Increment clock input | Negative-edge-triggered control line; toggling moves wiper one tap in direction set by U/D |
| 2 U/D | Up/down direction control | Logic level determines wiper movement direction during each INC edge; held stable during adjustment |
| 3 VH/RH | High-side fixed terminal | Analog terminal with ±5V rating; functions as top rail of potentiometer; polarity label reflects wiper motion direction, not voltage potential |
| 4 VSS | Ground reference | Primary digital and analog ground; all voltages referenced to this node |
| 5 VW/RW | Wiper output terminal | Movable contact point; series resistance typically 40Ω; settles within 100µs after INC edge |
| 6 VL/RL | Low-side fixed terminal | Analog terminal with ±5V rating; functions as bottom rail; labeling relative to U/D state, not absolute voltage |
| 7 CS | Chip select | Active-low enable; wiper position stored to nonvolatile memory on rising edge while INC = HIGH |
| 8 VCC | Positive supply | 5V ±10% digital/analog supply; powers internal logic, charge pump, and switch drivers |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | No mechanical wear or contact bounce; rated for 100,000 wiper position changes per bit |
| Nonvolatile wiper storage | Retains last-set position for ≥100 years; automatic recall at power-up ensures repeatable startup behavior |
| Three-wire serial interface | Minimal GPIO usage (CS/U/D/INC); no clock or data lines required beyond basic control signals |
| Make-before-break switching | Prevents open-circuit transients during multi-step wiper moves; avoids signal dropout in sensitive analog paths |
| Charge pump support | Enables ±5V analog operation from single 5V supply; eliminates need for external bipolar rails |
| Industrial temperature range | Specified from −40°C to +85°C; validated for use in embedded industrial controllers and automotive cabin modules |
Applications
| Power Supply Feedback Trimming | Sensor Offset Calibration |
|---|---|
|
Use Scenario: Adjusting output voltage of a DC-DC converter via resistor divider connected to feedback pin. IC Role / Device Role / Timing Role: Two-terminal variable resistor replacing manual trimmer; wiper position sets divider ratio. Use Value: Enables factory-programmed or field-updatable output voltage without hardware change; retains setting across power cycles. |
Use Scenario: Compensating zero-point drift in bridge-based pressure or load-cell sensors. IC Role / Device Role / Timing Role: Three-terminal potentiometer injecting offset correction into instrumentation amplifier input stage. Use Value: Achieves <±1% absolute linearity and ±0.2% relative linearity over temperature, supporting high-accuracy sensor linearization. |
| Programmable Gain Amplifier | Audio Channel Balance Control |
|
Use Scenario: Setting gain of an op-amp configured as non-inverting amplifier using feedback network. IC Role / Device Role / Timing Role: Variable resistor in feedback path; wiper position adjusts closed-loop gain digitally. Use Value: Provides 100 discrete gain steps with ≤3mA active current; avoids analog DAC complexity and external components. |
Use Scenario: Balancing left/right channel levels in consumer audio equipment with digital UI control. IC Role / Device Role / Timing Role: Dual-channel implementation (two X9C503SIZ devices) acting as matched variable resistors in volume control ladders. Use Value: Delivers ratiometric temperature tracking (±20 ppm/°C) ensuring consistent stereo balance across operating conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5243BRMZ10 | I²C interface, dual 10kΩ channels, 256 taps, 1.8–5.5V supply | Requires I²C host; lower resistance range; higher resolution but no nonvolatile store on power cycle | Select when I²C infrastructure exists and dual-channel trimming is needed; avoid if nonvolatile recall is mandatory |
| MCP41HV51-503E/SN | SPI interface, 50kΩ, 257 taps, volatile wiper register, 10–36V analog range | No built-in nonvolatile memory; requires external MCU to reload on startup; wider analog voltage capability | Choose for high-voltage analog systems (>±5V) where external control and reload logic is acceptable |
Compared with AD5243BRMZ10 and MCP41HV51-503E/SN, the X9C503SIZ uniquely combines 50kΩ resistance, true nonvolatile wiper recall, simple 3-wire interface, and guaranteed ±5V analog operation - making it optimal for cost-sensitive, self-contained trimming tasks without host processor dependency.
Availability
X9C503SIZ is available at Aetrix Electronics and suitable for power supply feedback trimming, sensor calibration, programmable gain amplifiers, and audio channel balancing requiring stable component supply across industrial temperature ranges and long product lifecycles.
Supply support for X9C503SIZ 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 leader delivering microcontrollers, analog, power, and connectivity solutions for industrial, automotive, and enterprise applications.
The X9C503SIZ belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in analog signal-path tuning applications requiring reliability, programmability, and nonvolatile setting retention.
FAQ
What is the maximum allowable voltage across VH/RH and VL/RL terminals for X9C503SIZ?
The maximum differential voltage ΔV = |VH/RH − VL/RL| for X9C503SIZ is 10V, as specified in the Absolute Maximum Ratings table. Exceeding this may damage the internal resistor array or switches. This limit applies regardless of VCC level and must be respected during both powered and unpowered states.
Does X9C503SIZ retain its wiper position after power removal?
Yes, X9C503SIZ stores the wiper position in nonvolatile memory and automatically recalls it upon power-up. The stored value persists for ≥100 years under normal conditions. Recall occurs only after VCC reaches its final regulated value; wiper stability is achieved within 500µs after power-up.
Can X9C503SIZ operate with analog signals outside the ±5V range?
No - the VH/RH and VL/RL terminals are rated for −5V to +5V referenced to VSS. Applying voltages beyond this range violates Absolute Maximum Ratings and risks permanent damage. The internal charge pump enables this ±5V swing from a single 5V supply, but does not extend the terminal voltage limits.
What is the wiper resistance specification for X9C503SIZ and why does it matter?
X9C503SIZ has a typical wiper resistance of 40Ω, with a maximum of 100Ω. This series resistance directly adds to signal path impedance - critical in low-gain amplifier feedback networks or high-precision voltage dividers where even small offsets affect accuracy and stability.
How is nonvolatile storage triggered on X9C503SIZ?
Nonvolatile storage is triggered when CS transitions from LOW to HIGH while the INC input is held HIGH. This "store" command writes the current wiper position to memory. If INC is LOW during the CS rise, no store occurs and the device enters standby mode without saving.
X9C503SIZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9C503SIZ FAQ
1.How can I place an order for X9C503SIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for X9C503SIZ 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 X9C503SIZ reliable?
The price and inventory of X9C503SIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9C503SIZ is usually 5 days.
3.What payment methods are accepted for X9C503SIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9C503SIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9C503SIZ?
X9C503SIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9C503SIZ 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 X9C503SIZ?
For technical support, including X9C503SIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9C503SIZ requirements.
6.How does Aetrix verify that X9C503SIZ is sourced from the original manufacturer or authorized distributors?
All X9C503SIZ 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 X9C503SIZ meets industry standards.
7.What is the process for return or replacement of X9C503SIZ?
All X9C503SIZ units undergo pre-shipment inspection (PSI). If there is an issue with X9C503SIZ, 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 X9C503SIZ part is unused and in its original packaging.
Return procedure for X9C503SIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9C503SIZ Tags
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MCP4011T-103E/SN
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MCP4021T-202E/SN
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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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