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Renesas X9C103PZ
- Part No.:
- X9C103PZ
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
X9C103PZ.pdf
- Description:
- IC DGTL POT 10KOHM 100TAP 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,982
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Product details
Overview
X9C103PZ from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with 100 wiper tap points, ±20% end-to-end resistance tolerance, nonvolatile wiper position storage, and three-wire serial interface (CS/U/D/INC). It functions as a solid-state replacement for mechanical potentiometers in precision analog trimming applications requiring power-up recall, such as DC bias adjustment in op-amp circuits.
For engineers reviewing the X9C103PZ datasheet, X9C103PZ pinout, X9C103PZ application, or X9C103PZ equivalent, this device delivers deterministic wiper positioning, low 40 Ω typical wiper resistance, 5V CMOS-compatible control logic, and guaranteed 100-year data retention - critical for unattended industrial sensor calibration and embedded system parameter tuning.
Technical Context
The X9C103PZ integrates a 7-bit up/down counter, nonvolatile memory for wiper position storage, and a 100-tap decoder driving a make-before-break switching network across a temperature-compensated 99-resistor array. Its three-wire interface operates with negative-edge-triggered INC and level-sensitive U/D to determine wiper direction.
Wiper position is recalled automatically at power-up from nonvolatile memory; storage occurs on CS rising edge while INC is high. The internal charge pump enables ±5 V terminal voltage swing with single 5 V supply, though charge pump noise (20 mVRMS @ 850 kHz) must be considered in low-noise signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 10 kΩ ±20% - defines full-scale analog range for voltage divider or variable resistor use |
| Wiper Tap Points | 100 positions (0–99) - provides 1% resolution for fine-grained analog control |
| Supply Voltage | 5 V ±10% - single-rail operation compatible with standard digital logic |
| Wiper Resistance | 40 Ω typical - minimizes insertion error in low-impedance feedback networks |
| Nonvolatile Retention | 100 years - ensures factory-trimmed settings persist over product lifetime |
| Operating Temperature | 0°C to +70°C - commercial-grade thermal range suitable for indoor instrumentation |
| Terminal Voltage Range | ±5 V referenced to VSS - supports bipolar signal conditioning without dual supplies |
Pinout & Package
Package: 8-lead PDIP (Plastic Dual-In-Line Package), RoHS-compliant, through-hole mountable per MDP0031 drawing. Pin 1 index located at top-left corner with notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INC | Increment clock input | Negative-edge-triggered control line; toggling moves wiper one step in U/D-defined direction |
| 2 U/D | Up/Down direction control | Static logic level (HIGH = increment, LOW = decrement) sets wiper movement polarity |
| 3 VH/RH | High-side fixed terminal | One end of resistor array; accepts −5 V to +5 V; polarity label denotes relative position, not voltage sign |
| 4 VSS | Ground reference | Logic and analog ground return; all voltages referenced to this node |
| 5 VW/RW | Wiper output terminal | Movable contact point; series resistance ~40 Ω; connects to one of 100 taps based on counter value |
| 6 VL/RL | Low-side fixed terminal | Opposite end of resistor array; accepts −5 V to +5 V; labeled relative to wiper motion direction |
| 7 CS | Chip select | Active-low enable; rising edge with INC HIGH stores current wiper position to nonvolatile memory |
| 8 VCC | Positive supply | 5 V ±10% power input; powers logic, memory, and internal charge pump |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, enabling 100,000 wiper position changes per bit - suitable for automated calibration cycles |
| Three-wire serial interface | Requires only CS, U/D, and INC signals - minimal GPIO usage on microcontrollers without SPI/I²C hardware |
| Nonvolatile wiper storage | Retains last-set position across power cycles - ensures repeatable startup behavior in unattended systems |
| Temperature-compensated array | ±300 ppm/°C RTOTAL drift - maintains stable resistance ratio over 0–70°C operating range |
| Make-before-break switching | Prevents open-circuit transients during wiper movement - avoids signal dropout in active filter or gain-control paths |
Applications
| Audio Signal Level Control | DC Bias Adjustment in Op-Amp Circuits |
|---|---|
Use Scenario: Volume or tone control in consumer audio equipment where manual knobs are replaced by microcontroller-driven digital adjustment. IC Role / Device Role / Timing Role: Functions as a two-terminal variable resistor in the feedback path of an op-amp-based amplifier stage. Use Value: Enables firmware-updatable gain settings with power-up recall, eliminating need for physical trimmers and reducing BOM count. |
Use Scenario: Calibration of offset voltage in precision instrumentation amplifiers used in sensor front-ends. IC Role / Device Role / Timing Role: Acts as a three-terminal potentiometer providing adjustable reference voltage to op-amp input terminals. Use Value: Delivers ±1% absolute linearity and 100-year retention, ensuring long-term accuracy without recalibration in field-deployed devices. |
| Voltage Regulator Feedback Trimming | Comparator Hysteresis Setting |
Use Scenario: Fine-tuning output voltage of adjustable linear regulators (e.g., LM317) in programmable power supplies. IC Role / Device Role / Timing Role: Configured as a two-terminal variable resistor in the R1–R2 feedback divider network. Use Value: Allows remote, software-controlled output voltage adjustment with ±20% end-to-end tolerance accommodated by design margin. |
Use Scenario: Setting hysteresis band width in window comparators for noise-immune threshold detection in industrial sensors. IC Role / Device Role / Timing Role: Used as a precision variable resistor between comparator output and inverting input to define hysteresis voltage. Use Value: Provides stable, repeatable hysteresis values across temperature due to ratiometric temperature coefficient of ±20 ppm/°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5204BRUZ10 | Quad-channel, I²C interface, 10 kΩ, 256-tap resolution, 3.3/5 V supply | Supports multi-pot configurations and higher resolution but requires I²C bus resources | Select when multiple simultaneous potentiometer channels or finer 0.4% resolution are required |
| MCP41010-I/P | Single-channel, SPI interface, 10 kΩ, 257-tap resolution, volatile memory only | Lacks nonvolatile storage; wiper resets to mid-scale on power-up unless externally reprogrammed | Select when cost sensitivity outweighs need for power-up recall and SPI interface is already available |
Compared with AD5204BRUZ10 and MCP41010-I/P, the X9C103PZ offers unique nonvolatile wiper retention with minimal three-wire control overhead, making it optimal for single-pot, self-initializing analog adjustments where EEPROM writes must survive power loss without host intervention.
Availability
X9C103PZ is available at Aetrix Electronics and suitable for audio signal conditioning, op-amp biasing, and voltage regulator trimming requiring stable component supply, long-term calibration integrity, and through-hole assembly compatibility.
Supply support for X9C103PZ 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 delivering microcontrollers, analog, power, and connectivity solutions for industrial, automotive, and infrastructure markets.
The X9C103PZ belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in analog signal-path calibration where reliability, repeatability, and nonvolatile setting retention are essential.
FAQ
What is the maximum voltage that can be applied across the VH/RH and VL/RL terminals of the X9C103PZ?
The X9C103PZ allows a maximum differential voltage ΔV = |VH/RH − VL/RL| of 10 V. This is specified in the Absolute Maximum Ratings table for X9C103, X9C104, and X9C503 variants. Exceeding this limit risks permanent damage to the internal resistor array or switching network. The terminals themselves tolerate −5 V to +5 V referenced to VSS, but their relative difference must stay within 10 V. Always ensure external circuitry respects this constraint when using X9C103PZ in voltage divider or variable resistor configurations.
Does the X9C103PZ require an external clock or microcontroller to operate?
No, the X9C103PZ does not require an external clock source. It uses asynchronous, edge-triggered control: the INC input is negative-edge sensitive, and the U/D input is level-sensitive. A microcontroller or discrete logic can drive CS, U/D, and INC directly with standard 5 V CMOS levels. No clock signal, timing controller, or firmware driver stack is needed - only three GPIO pins and proper sequencing per the mode table in the datasheet. This makes X9C103PZ usable even in simple 555-based or gate-level control systems.
How is wiper position stored and recalled in the X9C103PZ?
Wiper position is stored in nonvolatile memory when CS transitions from LOW to HIGH while the INC input is held HIGH. Upon power-up, the X9C103PZ automatically recalls the last stored value and configures the wiper accordingly - no host action is required. The recall occurs after VCC reaches its final value and stabilizes; the datasheet specifies a 500 µs delay from VCC ramp completion to stable wiper output. This behavior ensures X9C103PZ always resumes its calibrated state without boot-time initialization code.
Can the X9C103PZ be used in AC signal paths, and what are the bandwidth limitations?
The X9C103PZ is rated for DC and low-frequency analog use. Its potentiometer capacitances (CH/CL/CW) are 10/10/25 pF, and charge pump noise peaks at 850 kHz (20 mVRMS). While small-signal AC operation up to ~100 kHz is feasible depending on external impedance, it is not characterized for RF or high-speed signal routing. For AC-coupled applications, keep signal amplitudes within ±5 V and avoid frequencies where capacitive reactance degrades linearity. The X9C103PZ is optimized for trimming, not signal switching - use dedicated analog switches for >1 MHz paths.
What is the meaning of "make-before-break" switching in the X9C103PZ, and why does it matter?
"Make-before-break" means the X9C103PZ briefly connects two adjacent resistor taps to the wiper terminal during position transitions - ensuring continuity rather than momentary open-circuit. This prevents signal dropout or transient glitches in active circuits like op-amp feedback loops or voltage references. However, moving multiple steps rapidly can temporarily reduce effective RTOTAL due to parallel conduction paths; the datasheet specifies tIW = 100 µs for INC-to-VW change, during which overlapping connections occur. Designers should sequence wiper moves with appropriate delays if maintaining exact resistance during transition is critical.
X9C103PZ 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):
- 10k
- 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:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9C103PZ FAQ
1.How can I place an order for X9C103PZ through Aetrix?
Please submit a Request for Quotation (RFQ) for X9C103PZ 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 X9C103PZ reliable?
The price and inventory of X9C103PZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9C103PZ is usually 5 days.
3.What payment methods are accepted for X9C103PZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9C103PZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9C103PZ?
X9C103PZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9C103PZ 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 X9C103PZ?
For technical support, including X9C103PZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9C103PZ requirements.
6.How does Aetrix verify that X9C103PZ is sourced from the original manufacturer or authorized distributors?
All X9C103PZ 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 X9C103PZ meets industry standards.
7.What is the process for return or replacement of X9C103PZ?
All X9C103PZ units undergo pre-shipment inspection (PSI). If there is an issue with X9C103PZ, 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 X9C103PZ part is unused and in its original packaging.
Return procedure for X9C103PZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9C103PZ Tags
-
MCP4018T-103E/LT
Microchip Technology
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MCP4018T-503E/LT
Microchip Technology
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MCP4011T-103E/SN
Microchip Technology
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MCP4018T-104E/LT
Microchip Technology
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MCP4017T-503E/LT
Microchip Technology
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MCP4018T-502E/LT
Microchip Technology
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MCP4017T-103E/LT
Microchip Technology
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MCP4531T-103E/MF
Microchip Technology
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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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