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Renesas X9313USIT1
- Part No.:
- X9313USIT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9313USIT1.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,021
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Product details
Overview
X9313USIT1 from Intersil is a digitally controlled potentiometer (XDCP™) with 32 linear tap positions, 3-wire serial interface (CS/U/D/INC), nonvolatile wiper position storage, and ±VCC terminal voltage capability. It functions as a solid-state replacement for mechanical potentiometers in precision analog trimming circuits, offering 10kΩ end-to-end resistance, 5V supply operation, and industrial temperature range (−40°C to +85°C).
For engineers reviewing the X9313USIT1 datasheet, X9313USIT1 pinout, X9313USIT1 application, or X9313USIT1 equivalent, this page delivers verified specifications, validated pin functions, confirmed use cases in voltage divider and variable resistor configurations, and two technically documented alternative parts for design flexibility.
Technical Context
The X9313USIT1 implements a 31-element resistor array with make-before-break wiper switching, enabling precise 32-step linear resistance adjustment. Its 5-bit up/down counter drives a decoder that selects one of 32 tap points, with wiper position stored in nonvolatile memory upon CS↑ while INC = HIGH.
Control logic operates at VCC = 5V ±10%, supports terminal voltages from −VCC to +VCC, and maintains wiper position across power cycles. The device enters standby mode (500µA max) when deselected, and exhibits ±20% RTOTAL tolerance with ±300 ppm/°C temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance (RTOTAL) | 10kΩ ±20% - defines full-scale resistance range for voltage division or current limiting |
| Wiper resolution | 32 taps (31 resistive elements) - enables 3.125% step resolution per increment |
| Supply voltage (VCC) | 4.5V to 5.5V - compatible with standard 5V logic systems and industrial power rails |
| Terminal voltage range | −VCC to +VCC - supports bipolar signal conditioning without external level-shifting |
| Nonvolatile storage | 100-year data retention, 100,000 write cycles - ensures reliable power-up recall without external EEPROM |
| Wiper resistance (RW) | 40Ω typical at VCC = 5V - minimizes loading error in high-impedance feedback paths |
| Active supply current | 3mA max - low enough for battery-backed or energy-constrained analog subsystems |
Pinout & Package
Package: 8-lead SOIC (Pb-free, RoHS compliant), 3.9mm × 4.9mm body, 1.27mm lead pitch (JEDEC MS-012-AA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Provides power for internal logic and resistor array; must be stable before CS activation |
| VSS | Ground reference | Common return path for supply, control inputs, and potentiometer terminals |
| RH/VH | High terminal | Fixed end of resistor array; voltage polarity relative to wiper depends on U/D direction |
| RL/VL | Low terminal | Fixed end of resistor array; forms voltage divider with RH/VH and RW/VW |
| RW/VW | Wiper terminal | Movable contact point; output voltage varies linearly between VL and VH based on tap position |
| CS | Chip select | Active-low enable; initiates wiper movement when LOW, triggers nonvolatile store on rising edge with INC = HIGH |
| U/D | Up/down direction control | Logic level determines wiper increment/decrement direction during INC transitions |
| INC | Increment clock input | Negative-edge triggered; advances wiper one tap per pulse, synchronized to U/D state |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear, drift, and contact noise-enables >100,000 adjustments over product lifetime |
| 3-wire serial interface | Requires only CS, U/D, and INC signals-reduces MCU GPIO count vs. SPI/I²C alternatives |
| Nonvolatile wiper position storage | Recalls last setting at power-up-removes need for initialization firmware or external memory |
| Temperature-compensated resistor array | ±300 ppm/°C RTOTAL drift-maintains gain/offset stability across −40°C to +85°C industrial range |
| Make-before-break wiper switching | Prevents open-circuit transients during tap transitions-critical for stable op-amp feedback loops |
Applications
| Audio Volume Control | DC Offset Adjustment |
|---|---|
|
Use Scenario: Programmable gain stage in professional audio mixer channel strip. IC Role / Device Role / Timing Role: Two-terminal variable resistor configuring feedback network of LM308A op-amp. Use Value: Enables digital recall of user-saved volume settings via nonvolatile memory-no manual re-trimming after power loss. |
Use Scenario: Precision nulling circuit in industrial sensor signal conditioning front-end. IC Role / Device Role / Timing Role: Three-terminal potentiometer forming adjustable voltage divider for op-amp input bias compensation. Use Value: Provides 32-step linear trim resolution (±1 MI = RTOTAL/31 ≈ 322Ω) to correct amplifier input offset within ±1mV. |
| Programmable Voltage Reference | Comparator Hysteresis Setting |
|
Use Scenario: Adjustable reference for TL311A comparator in overvoltage protection circuit. IC Role / Device Role / Timing Role: Three-terminal potentiometer dividing +5V rail to generate programmable threshold voltage. Use Value: Supports factory calibration and field updates via 3-wire interface-eliminates solder-jumper or trim-pot rework. |
Use Scenario: Hysteresis band control in TL072-based window comparator for motor phase detection. IC Role / Device Role / Timing Role: Two-terminal variable resistor setting feedback ratio in positive-feedback loop. Use Value: Enables dynamic hysteresis tuning (0–10kΩ range) to suppress noise-induced false triggering in noisy EMI environments. |
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-channel, 256-tap resolution, 10kΩ RTOTAL, ±30% tolerance | Requires I²C master; higher resolution but no nonvolatile store per channel | Choose for multi-channel trimming where I²C bus is available and power-up recall is managed externally |
| MCP41010-I/P | SPI interface, single-channel, 257-tap resolution, 10kΩ RTOTAL, volatile wiper register only | No built-in nonvolatile memory-requires external MCU to restore position on boot | Choose for cost-sensitive designs with existing SPI infrastructure and firmware-controlled initialization |
Compared with X9313USIT1, AD5243BRMZ10 offers finer resolution and dual-channel capability but lacks automatic power-up recall, while MCP41010-I/P provides SPI compatibility and higher tap count but mandates external position management-making X9313USIT1 optimal for standalone, self-initializing analog trim applications.
Availability
X9313USIT1 is available at Aetrix Electronics and suitable for industrial sensor calibration, audio equipment manufacturing, and embedded control system development requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for X9313USIT1 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
Intersil Corporation is a precision analog and power management semiconductor provider, now part of Renesas Electronics, with expertise in high-reliability industrial and infrastructure solutions.
The X9313USIT1 belongs to Intersil's XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in analog signal-path applications demanding nonvolatile setting retention and robust temperature performance.
FAQ
What is the operating voltage range for the X9313USIT1?
The X9313USIT1 operates with a supply voltage (VCC) of 4.5V to 5.5V, matching standard 5V logic systems. Its RH/VH and RL/VL terminals support voltages from −VCC to +VCC, enabling direct use in bipolar analog circuits without level-shifting components. This specification is confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions sections of the FN8177 datasheet.
Does the X9313USIT1 retain its wiper position after power cycling?
Yes, the X9313USIT1 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is guaranteed by its EEPROM-based storage architecture, rated for 100 years of data retention and 100,000 write cycles. The store operation occurs on the rising edge of CS while INC is held HIGH, as defined in the Mode Selection table (Page 4, FN8177 Rev 7.00).
What package type is used for the X9313USIT1?
The X9313USIT1 uses an 8-lead narrow-body SOIC package (JEDEC MS-012-AA), Pb-free and RoHS compliant, with dimensions 3.9mm × 4.9mm and 1.27mm lead pitch. This is explicitly stated in the Ordering Information table (Page 2) under "X9313USIT1" and confirmed by Package Outline Drawing M8.15 (Page 11).
Can the X9313USIT1 be used as a two-terminal variable resistor?
Yes, the X9313USIT1 can operate as a two-terminal variable resistor by connecting either RH/VH or RL/VL to RW/VW and using the remaining fixed terminal with the wiper. This configuration is documented in the Applications Information section (Page 8) and supported by the resistor array topology-31 series elements with accessible taps at both ends and between each element.
What is the maximum allowable voltage difference between RH/VH and RL/VL terminals?
The maximum voltage difference (ΔV = |VH − VL|) for the X9313USIT1 is 10V, as specified in the Absolute Maximum Ratings table (Page 5) for X9313W/U variants-of which X9313USIT1 is a member (10kΩ, industrial temp, SOIC). Exceeding this limit risks irreversible damage to the internal resistor array or switching network.
X9313USIT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 32
- 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
X9313USIT1 FAQ
1.How can I place an order for X9313USIT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9313USIT1 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 X9313USIT1 reliable?
The price and inventory of X9313USIT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9313USIT1 is usually 5 days.
3.What payment methods are accepted for X9313USIT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9313USIT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9313USIT1?
X9313USIT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9313USIT1 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 X9313USIT1?
For technical support, including X9313USIT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9313USIT1 requirements.
6.How does Aetrix verify that X9313USIT1 is sourced from the original manufacturer or authorized distributors?
All X9313USIT1 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 X9313USIT1 meets industry standards.
7.What is the process for return or replacement of X9313USIT1?
All X9313USIT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9313USIT1, 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 X9313USIT1 part is unused and in its original packaging.
Return procedure for X9313USIT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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