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Renesas X9C503SIZT1
- Part No.:
- X9C503SIZT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9C503SIZT1.pdf
- Description:
- IC DGTL POT 50KOHM 100TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,534
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Product details
Overview
X9C503SIZT1 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with nonvolatile wiper position storage. It provides 100 discrete tap points, ±20% end-to-end resistance tolerance, and operates from a single 5V supply with active current ≤3mA. It functions as a three-terminal voltage divider or two-terminal variable resistor in analog signal trimming applications.
For engineers reviewing the X9C503SIZT1 datasheet, X9C503SIZT1 pinout, X9C503SIZT1 application, or X9C503SIZT1 equivalent, key selection criteria include its 50kΩ end-to-end resistance, -40°C to +85°C industrial temperature range, SOIC-8 package, nonvolatile recall on power-up, and compatibility with 3-wire serial control (CS/U/D/INC).
Technical Context
The X9C503SIZT1 integrates a 7-bit up/down counter, nonvolatile memory for wiper position retention, and a 99-resistor ladder with make-before-break wiper switching. Its internal charge pump enables ±5V terminal voltage operation while powered only by VCC = 5V ±10%.
Wiper movement is edge-triggered via INC input with direction controlled by U/D; CS enables device selection and initiates nonvolatile store when transitioned high with INC high. The wiper resistance is typically 40Ω, and absolute linearity is ±1 MI (minimum increment = RTOTAL/99).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 50kΩ ±20% - defines full-scale adjustment range for voltage division or current limiting |
| Wiper Tap Points | 100 positions - enables fine-grained analog parameter control with 1% resolution per step |
| Supply Voltage | 5V ±10% - single-rail operation compatible with standard logic systems |
| Terminal Voltage Range | ±5V referenced to VSS - supports bipolar signal conditioning without dual supplies |
| Nonvolatile Retention | 100 years - ensures factory-set or user-trimmed values persist across power cycles and product lifetime |
| Wiper Resistance | Typ. 40Ω - low series impedance preserves signal integrity in precision divider configurations |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade embedded and instrumentation environments |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, surface-mountable with standard land pattern (6.0mm × 4.9mm body, 1.27mm pitch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INC | Increment clock input | Negative-edge-triggered control signal that advances or retracts 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 | One end of resistor array; accepts -5V to +5V; polarity label indicates relative position, not voltage sign |
| 4 VSS | Ground reference | System ground return for supply and logic; all voltages referenced to this node |
| 5 VW/RW | Wiper output terminal | Movable contact point; connects to one of 100 taps; series resistance typ. 40Ω |
| 6 VL/RL | Low-side fixed terminal | Opposite end of resistor array; accepts -5V to +5V; labeled relative to U/D-selected direction |
| 7 CS | Chip select input | Active-low enable; stores current wiper position to NV memory when deasserted with INC high |
| 8 VCC | Positive supply | 5V ±10% power rail; powers logic, memory, and internal charge pump for bipolar terminal operation |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, enabling 100,000 wiper adjustments per bit - suitable for automated calibration loops |
| Three-wire serial interface | Requires only CS, U/D, and INC signals - minimal GPIO usage, no clock or data lines needed |
| Nonvolatile wiper recall | Restores last-stored position at power-up - ensures consistent startup behavior without host initialization |
| Temperature-compensated array | ±300 ppm/°C RTOTAL drift (X9C503) - maintains resistance ratio stability over industrial temperature range |
| Charge pump support | Enables ±5V analog signal swing on VH/RH and VL/RL using only 5V VCC - simplifies system power architecture |
Applications
| Audio Signal Level Control | Power Supply Feedback Trimming |
|---|---|
Use Scenario: Adjusting gain or volume in analog audio paths within consumer or pro-audio equipment. IC Role / Device Role / Timing Role: Functions as a digitally programmable voltage divider between input and op-amp feedback network. Use Value: Enables remote or microcontroller-driven volume/gain changes with repeatable settings retained across power cycles. |
Use Scenario: Fine-tuning output voltage of adjustable DC-DC converters or linear regulators in embedded power systems. IC Role / Device Role / Timing Role: Replaces mechanical trimpot in feedback divider string to set regulated output voltage precisely. Use Value: Allows factory calibration and field updates via digital interface; eliminates manual adjustment and drift over time. |
| Sensor Offset Compensation | Industrial Analog I/O Calibration |
Use Scenario: Nulling DC offset in bridge-based sensor circuits (e.g., strain gauges, pressure transducers). IC Role / Device Role / Timing Role: Provides programmable bias injection at amplifier input to cancel sensor zero-point error. Use Value: Supports automated self-calibration routines during production test or periodic maintenance without hardware access. |
Use Scenario: Calibrating input gain/offset or output drive levels in programmable logic controller (PLC) analog modules. IC Role / Device Role / Timing Role: Serves as field-adjustable scaling element in signal conditioning chains for 4–20mA or 0–10V interfaces. Use Value: Enables traceable, software-controlled calibration with nonvolatile storage - critical for compliance with industrial accuracy standards. |
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, 50kΩ, 256-tap resolution, no nonvolatile memory | Requires external EEPROM or host MCU to retain settings; better for multi-pot systems needing synchronized updates | Select if I²C bus integration and dual-channel operation outweigh need for autonomous power-up recall |
| MCP41050-I/P | SPI interface, 50kΩ, 256-tap resolution, volatile wiper register only (no NV memory) | Needs host MCU to reload wiper value at startup; lower cost but higher firmware dependency | Choose when SPI is preferred and system-level initialization can guarantee consistent startup state |
Compared with X9C503SIZT1, AD5243BRMZ50 offers higher resolution and dual-channel capability but lacks autonomous nonvolatile recall, while MCP41050-I/P provides SPI simplicity and lower price but requires continuous host management of wiper position - making X9C503SIZT1 optimal for standalone, self-initializing analog trimming.
Availability
X9C503SIZT1 is available at Aetrix Electronics and suitable for industrial instrumentation, sensor calibration, and programmable power supply design requiring stable component supply, long-term parametric consistency, and RoHS-compliant surface-mount packaging.
Supply support for X9C503SIZT1 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 SoC solutions for industrial, automotive, and infrastructure markets.
The X9C503SIZT1 belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in applications demanding reliability, programmability, and nonvolatile setting retention.
FAQ
What is the end-to-end resistance tolerance of the X9C503SIZT1?
The X9C503SIZT1 has an end-to-end resistance tolerance of ±20% across its 50kΩ nominal value. This variation is specified over temperature and unit-to-unit, and applies to the total resistance between VH/RH and VL/RL terminals. The device's ratiometric temperature coefficient is ±20 ppm/°C, ensuring stable voltage division ratios despite resistance drift.
Does the X9C503SIZT1 retain its wiper position after power loss?
Yes, the X9C503SIZT1 retains its wiper position in nonvolatile memory for up to 100 years. Upon power-up, the stored value is automatically recalled and applied to the wiper, eliminating the need for host MCU initialization. The store operation is triggered by raising CS high while INC is held high - a feature unique to the XDCP™ architecture.
Can the X9C503SIZT1 operate with bipolar analog signals?
Yes, the X9C503SIZT1 supports bipolar analog signals: VH/RH and VL/RL terminals accept voltages from -5V to +5V relative to VSS, enabled by its internal charge pump. This allows use in AC-coupled or dual-supply signal paths without requiring negative rails - the wiper (VW/RW) tracks these voltages while powered solely by 5V VCC.
What is the maximum wiper current rating for the X9C503SIZT1?
The X9C503SIZT1 specifies a maximum wiper current (IW) of ±4.4mA under steady-state conditions. Exceeding this may cause localized heating or accelerated wear. The device's power rating is 10mW, and absolute maximum ΔV (VH–VL) is 10V - both must be observed to maintain reliability and linearity performance.
Is the X9C503SIZT1 pin-compatible with other members of the X9Cxxx family?
Yes, the X9C503SIZT1 shares identical pinout, interface protocol, and package dimensions with X9C102, X9C103, and X9C104 variants. Only the end-to-end resistance differs (1kΩ, 10kΩ, 50kΩ, 100kΩ respectively). This allows direct substitution in existing layouts when resistance value is the sole differentiating factor - provided thermal and voltage margin requirements remain satisfied.
X9C503SIZT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
X9C503SIZT1 FAQ
1.How can I place an order for X9C503SIZT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9C503SIZT1 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 X9C503SIZT1 reliable?
The price and inventory of X9C503SIZT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9C503SIZT1 is usually 5 days.
3.What payment methods are accepted for X9C503SIZT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9C503SIZT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9C503SIZT1?
X9C503SIZT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9C503SIZT1 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 X9C503SIZT1?
For technical support, including X9C503SIZT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9C503SIZT1 requirements.
6.How does Aetrix verify that X9C503SIZT1 is sourced from the original manufacturer or authorized distributors?
All X9C503SIZT1 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 X9C503SIZT1 meets industry standards.
7.What is the process for return or replacement of X9C503SIZT1?
All X9C503SIZT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9C503SIZT1, 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 X9C503SIZT1 part is unused and in its original packaging.
Return procedure for X9C503SIZT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9C503SIZT1 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
Microchip Technology
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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
Microchip Technology
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MCP4551T-502E/MS
Microchip Technology
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