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Renesas X9313WSIT1
- Part No.:
- X9313WSIT1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9313WSIT1.pdf
- Description:
- IC DGTL POT 10KOHM 32TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,949
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Product details
Overview
X9313WSIT1 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 10 kΩ end-to-end resistance. It operates from 4.5 V to 5.5 V, supports ±VCC terminal voltages, and functions as a three-terminal voltage divider or two-terminal variable resistor in analog trimming applications.
For engineers reviewing the X9313WSIT1 datasheet, X9313WSIT1 pinout, X9313WSIT1 application, or X9313WSIT1 equivalent, key selection criteria include wiper retention on power-up, ±4.4 mA max wiper current, 5 µs INC-to-VW response, 40 Ω typical wiper resistance at 5 V, and compatibility with industrial temperature range (–40°C to +85°C) in SOIC-8 package.
Technical Context
The X9313WSIT1 implements a 31-element resistor array with make-before-break electronic wiper switching, enabling glitch-free tap transitions. Its 5-bit up/down counter drives a decoder that selects one of 32 wiper positions, with wiper position stored in nonvolatile memory upon CS↑ while INC = HIGH.
Control logic responds to edge-triggered INC (negative-edge), level-sensitive U/D (direction), and active-low CS (device select). The device enters low-power standby (≤500 µA) when deselected, and recalls last-stored wiper position at power-up - no external initialization required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RTOTAL | 10 kΩ ±20% - defines full-scale resistance for voltage division or current limiting in analog signal paths. |
| Wiper Positions | 32 linear taps - enables precise 3.125% resolution per step (1/31 increment) across the resistive array. |
| VCC Range | 4.5 V to 5.5 V - compatible with standard 5 V digital logic rails and tolerant of supply ripple. |
| Terminal Voltage Range | –VCC to +VCC - supports bipolar signal handling (e.g., ±5 V inputs) without external level-shifting. |
| Wiper Resistance | 40 Ω typical at VCC = 5 V - minimizes insertion error in precision voltage divider configurations. |
| INC-to-VW Delay | 5 µs - ensures fast, deterministic wiper settling for real-time calibration loops. |
| Nonvolatile Endurance | 100,000 data changes per bit - supports frequent field recalibration over product lifetime. |
| Data Retention | 100 years - guarantees wiper setting persistence across decades of storage or infrequent use. |
Pinout & Package
Package: 8-lead SOIC (Pb-free, RoHS compliant), 3.9 mm × 4.9 mm body, 1.27 mm lead pitch (JEDEC MS-012-AA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply rail | Power source for internal logic and resistor array; must be applied before control signals during power-up. |
| VSS | Ground reference | Common return path for supply, logic, and analog terminals; decoupling near VCC/VSS recommended. |
| RH/VH | High fixed terminal | Analog high-side connection point; voltage polarity relative to wiper depends on U/D state, not absolute potential. |
| RL/VL | Low fixed terminal | Analog low-side connection point; forms resistive divider with RH/VH and RW/VW. |
| RW/VW | Wiper output | Movable tap point; delivers intermediate voltage/current; series resistance ≤100 Ω affects loading in high-impedance circuits. |
| CS | Chip select input | Active-low enable; stores wiper position on rising edge if INC = HIGH; triggers standby on deselect. |
| U/D | Direction control | Level-sensitive input determining wiper movement direction (up/down) during subsequent INC edges. |
| INC | Increment clock | Negative-edge-triggered; advances wiper one position per valid edge; timing critical (tCYC ≥ 2 µs). |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Eliminates need for external EEPROM or MCU backup; ensures repeatable startup behavior after power cycles. |
| 3-wire serial interface | Reduces GPIO count vs. I²C/SPI; compatible with simple microcontrollers lacking dedicated bus peripherals. |
| Make-before-break wiper switching | Prevents open-circuit glitches during tap transitions - critical for stable biasing in amplifier feedback networks. |
| ±VCC terminal voltage rating | Enables direct interfacing with bipolar op-amp stages (e.g., ±5 V rails) without external clamping diodes. |
| Industrial temperature range | Validated operation from –40°C to +85°C supports deployment in automotive under-hood, industrial PLC, and outdoor equipment. |
| Low standby current | 500 µA max enables integration into battery-powered systems where quiescent power must be minimized. |
Applications
| Audio Signal Level Control | DC Bias Adjustment in Amplifier Circuits |
|---|---|
Use Scenario: Volume or tone control in embedded audio subsystems where mechanical pot wear and ESD sensitivity are concerns. IC Role / Device Role / Timing Role: Three-terminal voltage divider setting gain or attenuation in analog signal path; wiper updated via MCU GPIOs. Use Value: 100-year data retention ensures factory-set volume limits persist across product lifetime; ±4.4 mA wiper current supports direct drive of op-amp inputs. | Use Scenario: Calibrating offset voltage or quiescent current in precision op-amp or power amplifier stages. IC Role / Device Role / Timing Role: Two-terminal variable resistor in emitter/degeneration or feedback loop; adjusted during production test or field service. Use Value: 32-tap linearity (±1 MI absolute, ±0.2 MI relative) enables sub-1% trim accuracy; nonvolatile store eliminates post-power-up recalibration. |
| Programmable Voltage Reference Divider | Temperature-Compensated Sensor Bias Network |
Use Scenario: Generating adjustable reference voltages for ADCs or comparators in data acquisition modules. IC Role / Device Role / Timing Role: Precision three-terminal potentiometer dividing stable VREF (e.g., 5 V) to set threshold or scaling factor. Use Value: ±20% RTOTAL tolerance is calibrated out during production; ratiometric tempco (±20 ppm/°C) maintains divider ratio stability across temperature. | Use Scenario: Compensating sensor output drift by dynamically adjusting excitation current or bridge balance in industrial transducers. IC Role / Device Role / Timing Role: Two-terminal variable resistor in constant-current source or Wheatstone bridge leg. Use Value: Temperature-compensated resistor array (±300 ppm/°C absolute) reduces thermal drift contribution; 10 kΩ value optimizes power dissipation vs. noise. |
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, 10 kΩ RTOTAL, ±30% tolerance, 1.8–5.5 V supply. | Requires I²C master; higher resolution but looser resistance tolerance; no ±VCC terminal rating. | Select when multi-channel control or finer adjustment granularity is needed and I²C infrastructure exists. |
| MCP41010-I/P | SPIM interface, single-channel, 257-tap resolution, 10 kΩ RTOTAL, ±20% tolerance, 2.7–5.5 V supply. | Requires SPI peripheral; no nonvolatile storage - wiper resets to mid-scale on power-up unless externally saved. | Select when SPI is preferred and external MCU-based wiper state management is acceptable. |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9313WSIT1 offers guaranteed wiper recall without firmware intervention, ±VCC analog terminal support for bipolar designs, and minimal GPIO overhead - making it optimal for cost-sensitive, single-channel, self-contained analog trimming tasks.
Availability
X9313WSIT1 is available at Aetrix Electronics and suitable for industrial sensor calibration, embedded audio level control, programmable power supply feedback networks, and precision analog front-end trimming requiring stable component supply and long-term parameter retention.
Supply support for X9313WSIT1 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 IC provider, now part of Renesas Electronics, with deep expertise in high-reliability industrial and infrastructure solutions.
The X9313WSIT1 belongs to Intersil's XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical pots in automated calibration, sensor conditioning, and analog signal path tuning applications.
FAQ
What is the operating temperature range for the X9313WSIT1?
The X9313WSIT1 is rated for industrial temperature operation from –40°C to +85°C. This range is validated per the manufacturer's recommended operating conditions and supports deployment in harsh environments such as factory automation controllers, outdoor instrumentation, and automotive cabin modules. The device maintains specified wiper linearity, resistance tolerance, and nonvolatile memory retention across this full range.
Does the X9313WSIT1 retain its wiper position after power cycling?
Yes, the X9313WSIT1 retains its wiper position after power cycling. The last stored wiper value is held in nonvolatile memory for up to 100 years and automatically recalled at power-up. This behavior occurs without any external circuitry or MCU intervention - the X9313WSIT1 powers up in the exact same tap position it was in before shutdown, provided the position was previously stored via CS↑ with INC = HIGH.
Can the X9313WSIT1 be used with bipolar analog signals?
Yes, the X9313WSIT1 supports bipolar analog signals: its RH/VH and RL/VL terminals tolerate voltages from –VCC to +VCC, and VW wiper output operates within the same range. With VCC = 5 V, this allows direct connection to ±5 V op-amp stages or AC-coupled signal paths. No external level-shifting or clamping is required, unlike many competing DCPs limited to unipolar operation.
What is the maximum allowable wiper current for the X9313WSIT1?
The maximum allowable wiper current for the X9313WSIT1 is ±4.4 mA, as specified in the Absolute Maximum Ratings table. Exceeding this current risks irreversible damage to the internal wiper switch network. For safe operation, ensure the voltage difference between RH/VH and RL/VL does not exceed 10 V (for X9313W-series parts like X9313WSIT1) and that load impedance limits current accordingly.
How is the wiper position stored in nonvolatile memory on the X9313WSIT1?
The wiper position on the X9313WSIT1 is stored in nonvolatile memory by raising the CS pin from LOW to HIGH while the INC pin is held HIGH. This specific edge-and-level condition triggers a 10 ms internal store cycle (tWR), after which the device enters standby mode. No additional clock edges or commands are required - the X9313WSIT1 handles the entire write sequence autonomously once the CS↑/INC=HIGH condition is met.
X9313WSIT1 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):
- 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:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9313WSIT1 FAQ
1.How can I place an order for X9313WSIT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9313WSIT1 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 X9313WSIT1 reliable?
The price and inventory of X9313WSIT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9313WSIT1 is usually 5 days.
3.What payment methods are accepted for X9313WSIT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9313WSIT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9313WSIT1?
X9313WSIT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9313WSIT1 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 X9313WSIT1?
For technical support, including X9313WSIT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9313WSIT1 requirements.
6.How does Aetrix verify that X9313WSIT1 is sourced from the original manufacturer or authorized distributors?
All X9313WSIT1 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 X9313WSIT1 meets industry standards.
7.What is the process for return or replacement of X9313WSIT1?
All X9313WSIT1 units undergo pre-shipment inspection (PSI). If there is an issue with X9313WSIT1, 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 X9313WSIT1 part is unused and in its original packaging.
Return procedure for X9313WSIT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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