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Renesas X9C104PI
- Part No.:
- X9C104PI
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
X9C104PI.pdf
- Description:
- IC DGTL POT 100KOHM 100TAP 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,368
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Product details
Overview
X9C104PI from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 100-kΩ end-to-end resistance with 100 wiper tap points, nonvolatile wiper position storage, and three-wire serial interface (CS/U/D/INC). It operates as a solid-state replacement for mechanical potentiometers in precision analog trimming circuits, supporting ±5 V terminal voltage range and −40°C to +85°C industrial temperature operation.
For engineers reviewing the X9C104PI datasheet, X9C104PI pinout, X9C104PI application, or X9C104PI equivalent, this page delivers verified specifications, validated pin functions, confirmed industrial-temperature PDIP packaging, real-world use cases in voltage regulation and sensor calibration, and two technically documented alternative parts with explicit functional and parametric distinctions.
Technical Context
The X9C104PI integrates a 99-element resistor array with make-before-break wiper switching, a 7-bit up/down counter, and nonvolatile memory for wiper position retention across power cycles. Its control logic responds to negative-edge-triggered INC pulses while direction is set by U/D level, and stores position on CS↑ with INC HIGH.
It uses an internal charge pump to support ±5 V analog terminal voltages with only a single 5 V supply, delivering 40 Ω typical wiper resistance and ±1 MI absolute linearity. The device enters standby mode (750 µA max) when deselected and features 100,000-cycle endurance and 100-year data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 100 kΩ ±20% - defines full-scale analog adjustment range and sets current limits in voltage divider or variable resistor configurations |
| Wiper Tap Points | 100 positions - enables 1% resolution steps for fine-grained analog parameter tuning without mechanical wear |
| Terminal Voltage Range | ±5 V referenced to VSS - supports bipolar signal conditioning and rail-to-rail operation in op-amp feedback networks |
| Supply Voltage | 5 V ±10% - compatible with standard TTL/CMOS logic rails and eliminates need for auxiliary analog supplies |
| Nonvolatile Storage | 100-year data retention - ensures factory-set or user-calibrated trim values persist across decades of field operation |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments including motor controls, instrumentation, and embedded sensors |
| Wiper Resistance | 40 Ω typical - introduces minimal series impedance in signal paths, preserving gain accuracy in precision amplifiers |
| Active Current | 3 mA max - enables low-power system design while maintaining responsive digital control timing |
Pinout & Package
Package: 8-lead PDIP (Plastic Dual-In-Line Package), RoHS-compliant, MDP0031 outline, through-hole mounting, rated for wave solder only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INC | Increment clock input | Negative-edge-triggered control signal that advances or retracts wiper position per U/D state; timing-critical for reliable tap stepping |
| 2 U/D | Direction control input | Logic level selects wiper movement direction (up/down); may be changed dynamically during CS-active window |
| 3 VH/RH | High-side fixed terminal | Analog terminal with ±5 V rating; functions as top rail in voltage divider or one end of variable resistor; polarity relative to wiper motion |
| 4 VSS | Ground reference | Primary circuit ground return for digital control and analog terminals; must be low-impedance to minimize noise coupling |
| 5 VW/RW | Wiper output terminal | Movable analog node with 40 Ω typical series resistance; connects to one of 100 taps; critical path for signal integrity in feedback loops |
| 6 VL/RL | Low-side fixed terminal | Analog terminal with ±5 V rating; functions as bottom rail or second resistor end; polarity defined by U/D-selected wiper direction |
| 7 CS | Chip select input | Active-low enable; initiates control sequence and triggers nonvolatile store when released HIGH with INC HIGH |
| 8 VCC | Power supply | +5 V ±10% digital/analog supply; powers internal logic, charge pump, and memory; ramp rate must stay within 0.2–50 V/ms |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state construction | Eliminates mechanical wear, contact bounce, and environmental sensitivity-enabling >100,000 adjustments over product lifetime |
| Three-wire serial interface | Requires only CS, U/D, and INC signals-reduces MCU GPIO count and simplifies PCB routing versus I²C/SPI alternatives |
| Nonvolatile wiper recall | Automatically restores last stored position at power-up-ensures repeatable startup behavior in unattended systems |
| Temperature-compensated array | ±300 ppm/°C RTOTAL drift-maintains stable resistance ratio across industrial temperature range for accurate voltage division |
| Charge pump support | Enables ±5 V analog operation from single 5 V rail-removes need for dual supplies in op-amp biasing and sensor excitation |
| Make-before-break switching | Prevents open-circuit transients during wiper movement-critical for stability in closed-loop amplifier feedback paths |
Applications
| Voltage Regulation Trim | Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Fine-tuning output voltage of adjustable linear regulators (e.g., LM317) or DC-DC controllers to meet tight tolerance specs across production batches. IC Role / Device Role / Timing Role: Two-terminal variable resistor in the ADJ pin feedback network, replacing manual trimpot for automated calibration. Use Value: Enables factory-programmed, nonvolatile voltage setpoints-eliminating post-assembly manual adjustment and improving test throughput. |
Use Scenario: Compensating offset/gain drift in analog sensor front-ends (e.g., thermistor bridges or strain gauge amplifiers) over temperature. IC Role / Device Role / Timing Role: Three-terminal potentiometer in op-amp gain/offset correction loop, with wiper position updated via microcontroller during thermal soak tests. Use Value: Delivers ±1 MI absolute linearity and ratiometric tempco <±20 ppm/°C-preserving measurement accuracy without recalibration. |
| Audio Level Control | Industrial Process Calibration |
|
Use Scenario: Digitally adjustable volume control in professional audio equipment where mechanical pots suffer from scratch noise and wear. IC Role / Device Role / Timing Role: Logarithmic-approximated attenuator using wiper and RH/RL terminals, driven by rotary encoder or GUI interface. Use Value: 100-step resolution and 40 Ω wiper resistance ensure smooth, silent level transitions-meeting EIA-499B audio performance requirements. |
Use Scenario: Field calibration of 4–20 mA transmitter outputs or PLC analog I/O modules to correct for aging or component drift. IC Role / Device Role / Timing Role: Precision variable resistor in current-loop calibration shunt or DAC output scaling network, updated via service port command. Use Value: 100-year nonvolatile retention guarantees calibration validity across multi-decade deployments in remote infrastructure. |
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 10 kΩ channel, SPI interface, 32 taps, no nonvolatile storage | Requires external EEPROM for power-up recall; better suited for multi-channel simultaneous adjustment | Select when multiple independent resistors are needed and host MCU handles persistent storage |
| MCP41010-I/P | Single 10 kΩ channel, SPI interface, 257 taps, volatile-only wiper register | Lacks nonvolatile memory; needs continuous refresh or external backup; higher resolution but no auto-recall | Select for high-resolution trimming where power cycling is infrequent or managed externally |
Compared with AD5204BRZ10 and MCP41010-I/P, the X9C104PI uniquely combines single-channel 100-kΩ resistance, true nonvolatile wiper storage, and minimal three-wire control-making it optimal for cost-sensitive, single-point industrial trim applications requiring guaranteed power-on repeatability without firmware overhead.
Availability
X9C104PI is available at Aetrix Electronics and suitable for industrial process calibration, sensor signal conditioning, voltage regulation trim, and audio level control requiring stable component supply across extended product lifecycles.
Supply support for X9C104PI 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 high-performance, reliable microcontrollers, analog, and power solutions for industrial, automotive, and infrastructure markets.
The X9C104PI belongs to Renesas' XDCP™ digitally controlled potentiometer family, designed specifically for replacing mechanical trimmers in industrial-grade analog systems requiring long-term stability, programmability, and nonvolatile setting retention.
FAQ
What is the maximum allowable voltage across the VH/RH and VL/RL terminals for the X9C104PI?
The X9C104PI specifies a maximum ΔV = |VH/RH − VL/RL| of 10 V for the 100 kΩ variant. This limit ensures safe operation of the internal resistor array and prevents irreversible damage to the wiper switches. Exceeding 10 V differential risks permanent degradation of the 99-element thin-film structure, even if individual terminal voltages remain within ±5 V relative to VSS. Always verify voltage compliance in both static and transient conditions.
Does the X9C104PI require an external power-down command to enter low-power standby mode?
No. The X9C104PI automatically enters low-power standby mode (750 µA max) when CS is returned HIGH after a store operation-or when CS remains HIGH with INC LOW. No external command or clock cycle is needed. This behavior is hardwired in the control circuitry and occurs within 20 ms of CS deactivation, making it ideal for battery-powered or energy-conscious designs where idle current must be minimized without software intervention.
Can the X9C104PI be used in a bipolar signal path with −5 V to +5 V swing?
Yes. The X9C104PI supports −5 V to +5 V on VH/RH and VL/RL terminals relative to VSS, enabled by its internal charge pump. When VCC = 5 V, the device generates internal bias rails to handle the full ±5 V analog range. However, the wiper terminal (VW/RW) must not exceed these limits, and all analog voltages must remain within ±VCC at all times-including during power-up ramp-per the datasheet's absolute maximum ratings.
How many wiper position changes can the X9C104PI endure before failure?
The X9C104PI is rated for 100,000 data changes per bit in nonvolatile memory, corresponding to 100,000 full wiper position writes. This endurance applies to store operations (CS↑ with INC HIGH), not incremental moves. Each store cycle updates the entire 7-bit wiper register. For applications requiring frequent recalibration, this translates to over 27 years of daily updates-validating its suitability for long-life industrial field equipment.
Is the X9C104PI pin-compatible with other members of the X9Cxxx family such as X9C103PI?
Yes-X9C104PI shares identical 8-lead PDIP pinout, electrical interface timing, and control protocol with X9C102PI, X9C103PI, and X9C503PI. The only differences are end-to-end resistance (100 kΩ vs. 1 kΩ/10 kΩ/50 kΩ) and temperature coefficient (±300 ppm/°C). This allows direct substitution in existing layouts when resistance value and tempco are acceptable for the target application, simplifying BOM rationalization.
X9C104PI 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):
- 100k
- 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
X9C104PI FAQ
1.How can I place an order for X9C104PI through Aetrix?
Please submit a Request for Quotation (RFQ) for X9C104PI 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 X9C104PI reliable?
The price and inventory of X9C104PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9C104PI is usually 5 days.
3.What payment methods are accepted for X9C104PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9C104PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9C104PI?
X9C104PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9C104PI 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 X9C104PI?
For technical support, including X9C104PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9C104PI requirements.
6.How does Aetrix verify that X9C104PI is sourced from the original manufacturer or authorized distributors?
All X9C104PI 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 X9C104PI meets industry standards.
7.What is the process for return or replacement of X9C104PI?
All X9C104PI units undergo pre-shipment inspection (PSI). If there is an issue with X9C104PI, 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 X9C104PI part is unused and in its original packaging.
Return procedure for X9C104PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9C104PI Tags
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MCP4018T-103E/LT
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MCP4018T-503E/LT
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MCP4011T-103E/SN
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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
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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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