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Renesas X9C102PZ
- Part No.:
- X9C102PZ
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
X9C102PZ.pdf
- Description:
- IC DGTL POT 1KOHM 100TAP 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,343
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Product details
Overview
X9C102PZ from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with 100 wiper tap points, nonvolatile memory for power-up recall, ±5V terminal voltage range, and 1 kΩ end-to-end resistance. It functions as a solid-state three-terminal potentiometer or two-terminal variable resistor in analog signal trimming and parameter calibration circuits.
For engineers reviewing the X9C102PZ datasheet, X9C102PZ pinout, X9C102PZ application, or X9C102PZ equivalent, this device offers deterministic wiper positioning via a three-wire serial interface (CS/U/D/INC), low-power CMOS operation at 5V, and guaranteed 100-year data retention - critical for embedded systems requiring repeatable factory-set analog adjustments without mechanical wear.
Technical Context
The X9C102PZ integrates a 7-bit up/down counter, nonvolatile memory storage, and a make-before-break wiper switching network across 99 resistive elements. Its control logic responds to negative-edge-triggered INC pulses while U/D sets direction, and CS enables selection and initiates nonvolatile store on rising edge with INC high.
Internally, an integrated charge pump supports ±5V analog terminal voltages despite single 5V VCC supply, with typical 40 Ω wiper resistance and temperature-compensated resistor array exhibiting ±600 ppm/°C RTOTAL drift. The device operates within 0°C to +70°C and enters standby mode drawing ≤750 µA when deselected.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 1 kΩ ±20% - defines full-scale analog adjustment range in voltage divider or current-limiting configurations |
| Wiper Tap Points | 100 positions (0–99) - enables 1% resolution step control of analog output without external DAC |
| Terminal Voltage Range | ±5 V referenced to VSS - supports bipolar signal conditioning without dual supplies |
| VCC Supply | 5 V ±10% - compatible with standard TTL/CMOS logic rails and eliminates need for auxiliary bias |
| Nonvolatile Memory Retention | 100 years - ensures factory-trimmed settings persist across product lifetime without battery backup |
| Wiper Resistance | 40 Ω typical - contributes minimal series impedance in precision gain-setting or offset-nulling paths |
| Active Current | ≤3 mA - allows integration into low-power sensor front-ends and portable instrumentation |
Pinout & Package
Package: 8-lead PDIP (Plastic Dual-In-Line Package), RoHS-compliant, MDP0031 outline, through-hole mountable. Operating temperature range: 0°C to +70°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INC | Increment clock input | Negative-edge-triggered control line; toggling moves wiper one position per pulse in direction set by U/D |
| 2 U/D | Up/Down direction control | Logic level determines wiper movement direction during INC transitions; stable during wiper settling |
| 3 VH/RH | High-side fixed terminal | Analog terminal with ±5 V rating; electrically equivalent to upper mechanical potentiometer terminal |
| 4 VSS | Ground reference | System ground return for digital control and analog terminals; must be common with VCC return |
| 5 VW/RW | Wiper output terminal | Movable analog node; connects to one of 100 tap points; series resistance typically 40 Ω |
| 6 VL/RL | Low-side fixed terminal | Analog terminal with ±5 V rating; electrically equivalent to lower mechanical potentiometer terminal |
| 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% digital/analog supply; powers internal logic, charge pump, and wiper switches |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, contact bounce, and vibration sensitivity - ideal for industrial control panels and automotive ECUs |
| Three-wire serial interface | Requires only CS, U/D, and INC signals - reduces MCU GPIO count and PCB routing complexity vs SPI/I²C alternatives |
| Nonvolatile wiper position storage | Recalls last stored setting at power-up - enables consistent startup behavior without host initialization sequence |
| Temperature-compensated resistor array | ±600 ppm/°C RTOTAL drift - maintains trim accuracy across commercial temperature range without recalibration |
| Charge pump support for ±5 V analog range | Enables bipolar signal handling (e.g., op-amp offset nulling) using single 5 V rail - avoids dual-supply design overhead |
Applications
| Audio Volume Control | Power Supply Feedback Trim |
|---|---|
Use Scenario: Digital volume adjustment in consumer audio amplifiers with user interface buttons or microcontroller control. IC Role / Device Role / Timing Role: Replaces mechanical potentiometer as programmable voltage divider between audio signal path and ground. Use Value: Provides repeatable, noise-free attenuation steps with no scratchy artifacts; retains last volume setting after power cycle. |
Use Scenario: Fine-tuning output voltage of adjustable DC-DC converters in telecom power modules. IC Role / Device Role / Timing Role: Sets feedback divider ratio for voltage regulation loop; wiper position adjusted during factory calibration. Use Value: Enables precise, permanent output voltage calibration without manual soldering or laser trimming; immune to environmental drift. |
| Sensor Signal Conditioning | Offset Nulling in Precision Amplifiers |
Use Scenario: Compensating for sensor offset and gain variations in industrial temperature transmitters. IC Role / Device Role / Timing Role: Configured as two-terminal variable resistor in bridge completion or amplifier gain-setting network. Use Value: Allows field or factory calibration of sensor output span and zero point; nonvolatile storage preserves calibration across maintenance cycles. |
Use Scenario: Nulling input offset voltage in instrumentation-grade op-amps (e.g., OP-07) used in medical ECG front-ends. IC Role / Device Role / Timing Role: Connected as three-terminal potentiometer across op-amp offset null pins to inject balancing current. Use Value: Achieves sub-mV offset correction stability over time and temperature; eliminates manual potentiometer re-adjustment during production test. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5201BRMZ10 | 10 kΩ end-to-end resistance; I²C interface; 33-position resolution; no nonvolatile memory | Requires continuous host MCU control to retain setting; unsuitable for unpowered calibration persistence | Select when I²C bus availability and higher resistance tolerance (±30%) are acceptable trade-offs for reduced pin count |
| MCP41010-I/P | 10 kΩ end-to-end resistance; SPI interface; volatile wiper register; no nonvolatile storage | Needs external EEPROM or MCU firmware to restore wiper position on power-up | Prefer when SPI-native systems exist and factory calibration can be reloaded at boot; avoid where power-loss resilience is mandatory |
Compared with AD5201BRMZ10 and MCP41010-I/P, the X9C102PZ uniquely delivers 100-step resolution, ±5 V analog range, and true nonvolatile wiper storage in a simple three-wire interface - making it optimal for cost-sensitive, self-contained analog trimming where power-cycle repeatability is essential.
Availability
X9C102PZ is available at Aetrix Electronics and suitable for audio equipment calibration, power supply feedback networks, sensor signal conditioning, and precision amplifier offset nulling requiring stable component supply and long-term parameter retention.
Supply support for X9C102PZ 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 mixed-signal solutions for industrial, automotive, and consumer applications.
The X9C102PZ belongs to Renesas' XDCP™ digitally controlled potentiometer family, designed specifically for replacing mechanical trimmers in analog circuits requiring programmable, repeatable, and nonvolatile resistance adjustment.
FAQ
What is the maximum allowable voltage across the VH/RH and VL/RL terminals of the X9C102PZ?
The X9C102PZ specifies a maximum ΔV = |VH/RH − VL/RL| of 4 V. This limit arises from its 1 kΩ end-to-end resistance and internal power dissipation constraints (16 mW max). Exceeding 4 V risks thermal overstress or irreversible damage to the resistor array, even if individual terminal voltages remain within ±5 V relative to VSS.
Does the X9C102PZ require an external clock or timing circuit to operate?
No, the X9C102PZ does not require an external clock. Its operation is fully asynchronous and driven solely by edge-triggered signals on INC and level-sensitive inputs on U/D and CS. The device internally manages wiper movement timing, with specified minimum INC cycle time (2 µs) and setup/hold requirements defined in the datasheet.
Can the X9C102PZ be used in a bipolar signal path with both positive and negative voltages?
Yes, the X9C102PZ supports bipolar operation: VH/RH and VL/RL tolerate −5 V to +5 V referenced to VSS, and the internal charge pump enables this range using only a single 5 V VCC supply. This allows direct use in op-amp offset nulling, AC-coupled gain control, and other dual-rail analog circuits without auxiliary supplies.
How many times can the wiper position be stored to nonvolatile memory in the X9C102PZ?
The X9C102PZ guarantees 100,000 data changes per bit in nonvolatile memory. Each store operation (CS rising edge with INC high) writes the current 7-bit wiper position. This endurance rating ensures reliable recalibration over the full product lifecycle, including repeated factory programming and field updates.
Is the X9C102PZ pin-compatible with other members of the X9Cxxx family such as X9C103PZ or X9C104PZ?
Yes, all X9Cxxx devices including X9C102PZ, X9C103PZ, and X9C104PZ share identical 8-pin PDIP and SOIC footprints, pin assignments, and interface protocols. The only differences are end-to-end resistance values (1 kΩ, 10 kΩ, 100 kΩ) and corresponding temperature coefficients - allowing direct substitution where resistance value meets circuit requirements.
X9C102PZ 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):
- 1k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±600ppm/°C
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-PDIP
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9C102PZ FAQ
1.How can I place an order for X9C102PZ through Aetrix?
Please submit a Request for Quotation (RFQ) for X9C102PZ 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 X9C102PZ reliable?
The price and inventory of X9C102PZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9C102PZ is usually 5 days.
3.What payment methods are accepted for X9C102PZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9C102PZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9C102PZ?
X9C102PZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9C102PZ 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 X9C102PZ?
For technical support, including X9C102PZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9C102PZ requirements.
6.How does Aetrix verify that X9C102PZ is sourced from the original manufacturer or authorized distributors?
All X9C102PZ 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 X9C102PZ meets industry standards.
7.What is the process for return or replacement of X9C102PZ?
All X9C102PZ units undergo pre-shipment inspection (PSI). If there is an issue with X9C102PZ, 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 X9C102PZ part is unused and in its original packaging.
Return procedure for X9C102PZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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