My Inquiry
My Account
Renesas X9315WSI-2.7T1
- Part No.:
- X9315WSI-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9315WSI-2.7T1.pdf
- Description:
- IC DGTL POT 10KOHM 32TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,003
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X9315WSI-2.7T1 from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 31-element resistor array with 32 wiper tap positions, nonvolatile wiper position storage, and 3-wire serial interface (CS/U/D/INC). It operates from 2.7V to 5.5V, offers 10kΩ end-to-end resistance, and supports industrial temperature range (–40°C to +85°C) in an 8-lead SOIC package. It functions as a solid-state replacement for mechanical potentiometers in precision analog trimming applications.
For engineers reviewing the X9315WSI-2.7T1 datasheet, X9315WSI-2.7T1 pinout, X9315WSI-2.7T1 application, or X9315WSI-2.7T1 equivalent, this device delivers low-power operation (80µA active, 5µA standby), ±20% RTOTAL tolerance, temperature-compensated linearity, and EEPROM-based power-up recall-key selection criteria for embedded analog control systems requiring long-term setting retention without external memory.
Technical Context
The X9315WSI-2.7T1 integrates a 5-bit up/down counter, nonvolatile memory, and a 31-resistor ladder with make-before-break wiper switching. Its control logic responds to CS-select, U/D direction, and negative-edge-triggered INC signals to increment or decrement wiper position, with store-on-CS↑/INC↑ enabling EEPROM write.
It features ratiometric temperature coefficient of ±20 ppm/°C and absolute linearity error of ±1 MI (minimum increment), ensuring stable voltage-divider performance across –40°C to +85°C. Wiper resistance is 400–1000Ω at VCC = 2.7V, and terminal voltage range is 0 to VCC-enabling direct connection to rail-referenced analog circuits without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10kΩ ±20% - defines full-scale analog adjustment range and load interaction in voltage divider or variable resistor configurations |
| Supply voltage range | 2.7V to 5.5V - enables compatibility with both 3.3V and 5V systems without external regulators |
| Wiper positions | 32 discrete taps - provides 31-step resolution for fine-grained analog parameter control |
| Nonvolatile storage | 100-year data retention, 100,000 write cycles - eliminates need for battery-backed RAM or external EEPROM in set-and-forget applications |
| Active supply current | 80µA max at VCC = 2.7V - supports low-power sensor calibration and portable instrumentation designs |
| Operating temperature | –40°C to +85°C - qualifies for industrial and automotive under-hood environments where thermal stability is critical |
| Interface protocol | 3-wire asynchronous (CS/U/D/INC) - requires no clock signal or firmware overhead beyond simple GPIO toggling |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, surface-mountable with standard 1.27mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Must be ≥ VH, VL, VW; powers internal logic and resistor array; supports 2.7V–5.5V operation |
| VSS | Ground reference | Return path for all internal currents; must be connected directly to system ground plane |
| RH/VH | High terminal | Fixed end of resistor array; voltage range 0 to VCC; serves as top rail in voltage divider mode |
| RL/VL | Low terminal | Fixed end of resistor array; voltage range 0 to VCC; serves as bottom rail in voltage divider mode |
| RW/VW | Wiper output | Movable tap point; series resistance 400–1000Ω at 2.7V; connects to analog signal path or feedback node |
| CS | Chip select | Active-low enable; HIGH initiates nonvolatile store when INC is also HIGH; LOW enables wiper movement |
| U/D | Direction control | Logic level sets wiper movement direction (HIGH = increment, LOW = decrement) during INC transitions |
| INC | Increment clock | Negative-edge-triggered; each falling edge moves wiper one position in U/D-defined direction |
Key Features
| Feature | Design Value |
|---|---|
| Solid-state potentiometer architecture | Eliminates mechanical wear, contact bounce, and vibration sensitivity-ideal for high-reliability industrial controls |
| Nonvolatile wiper position storage | Recalls last-set value on power-up without host intervention, enabling true "set-and-forget" analog calibration |
| Temperature-compensated resistor array | ±20 ppm/°C ratiometric TC ensures stable voltage division across –40°C to +85°C, critical for sensor signal conditioning |
| Make-before-break wiper switching | Prevents open-circuit transients during tap changes, avoiding glitches in feedback loops or audio paths |
| Low-voltage 2.7V operation | Enables direct integration into 3.3V microcontroller systems without level shifters or supply translation |
Applications
| Audio Signal Level Control | Laser Diode Bias Adjustment |
|---|---|
Use Scenario: Precise volume or gain control in battery-powered portable audio amplifiers. IC Role / Device Role / Timing Role: Functions as a digitally programmable voltage divider between audio source and amplifier input, replacing mechanical pots subject to wear and noise. Use Value: Delivers 32-step resolution with zero contact noise, 5µA standby current extends battery life, and nonvolatile recall preserves user volume settings across power cycles. |
Use Scenario: Fine-tuning bias current for telecom-grade laser diodes in optical transceivers. IC Role / Device Role / Timing Role: Acts as a two-terminal variable resistor in the feedback path of a constant-current laser driver IC. Use Value: ±20 ppm/°C ratiometric TC maintains stable bias over temperature, while 100,000-cycle endurance supports factory calibration and field recalibration without drift-induced failure. |
| Sensor Offset Calibration | Power Supply Voltage Trim |
Use Scenario: Compensating offset voltage in precision temperature or pressure sensor front-ends. IC Role / Device Role / Timing Role: Configured as a three-terminal potentiometer to inject adjustable DC offset into op-amp summing junctions. Use Value: Absolute linearity error ≤ ±1 MI ensures accurate nulling across full temperature range; 80µA active current minimizes self-heating effects on sensor accuracy. |
Use Scenario: Factory-trimming output voltage of isolated DC-DC converters in industrial PLC modules. IC Role / Device Role / Timing Role: Used as a programmable resistor in the feedback divider of a TL431-based shunt regulator circuit. Use Value: 10kΩ RTOTAL matches standard TL431 design practices; nonvolatile storage retains trim value through rework, burn-in, and shipping-eliminating post-assembly manual adjustment. |
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, ±30% RTOTAL tolerance | Requires I²C master; higher resolution but looser resistance tolerance affects absolute voltage accuracy | Select when dual independent pots or finer granularity outweighs need for nonvolatile recall and tighter RTOTAL spec |
| MCP41010-I/P | SPITM interface, single-channel, 257-tap resolution, 10kΩ, ±20% RTOTAL, volatile wiper register only | No EEPROM; wiper resets to mid-scale on power-up unless host reloads value | Select when SPI-native microcontrollers dominate the BOM and external nonvolatile storage is already present |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9315WSI-2.7T1 uniquely combines guaranteed power-up recall, 2.7V operation, and ±20% RTOTAL tolerance in a minimal 3-wire interface-making it optimal for cost-sensitive, single-pot industrial systems where EEPROM dependency and interface complexity must be minimized.
Availability
X9315WSI-2.7T1 is available at Aetrix Electronics and suitable for industrial sensor calibration, laser diode biasing, audio level control, and power supply voltage trimming requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for X9315WSI-2.7T1 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 (now part of Renesas Electronics) is a semiconductor manufacturer specializing in precision analog, power management, and interface ICs for industrial, aerospace, and communications markets.
The X9315WSI-2.7T1 belongs to Intersil's XDCP™ (Digitally Controlled Potentiometer) product line, designed specifically to replace electromechanical potentiometers in analog trimming applications demanding reliability, programmability, and nonvolatile setting retention.
FAQ
What is the maximum wiper current rating for the X9315WSI-2.7T1?
The X9315WSI-2.7T1 has a maximum wiper current rating of ±3.75mA under recommended operating conditions. This limit ensures safe operation without exceeding the 10mW maximum power rating or causing irreversible resistance drift. Exceeding this current may degrade wiper resistance stability or accelerate wear in the internal switching network. The X9315WSI-2.7T1 wiper resistance ranges from 400Ω to 1000Ω at 2.7V, making it suitable for low-current analog signal paths-not power-level adjustments.
Does the X9315WSI-2.7T1 retain its wiper position after power cycling?
Yes, the X9315WSI-2.7T1 retains its wiper position after power cycling via on-chip nonvolatile memory. When CS is raised HIGH while INC is held HIGH, the current wiper position is stored and recalled automatically on next power-up. Data retention is rated for 100 years, and the memory withstands 100,000 write cycles-making the X9315WSI-2.7T1 ideal for factory-calibrated systems where settings must persist across maintenance, shipping, and field deployment.
Can the X9315WSI-2.7T1 operate from a 3.3V supply?
Yes, the X9315WSI-2.7T1 is fully specified to operate from 2.7V to 5.5V, making it compatible with standard 3.3V logic supplies. At 3.3V, its active current remains ≤80µA, standby current ≤5µA, and wiper resistance falls within the 400–1000Ω range. All timing parameters-including tCYC (4µs minimum) and tIW (1–5µs)-are guaranteed across this voltage range, ensuring reliable interfacing with 3.3V microcontrollers using simple GPIO control.
What is the temperature coefficient of the X9315WSI-2.7T1's resistor array?
The X9315WSI-2.7T1 exhibits a ratiometric temperature coefficient of ±20 ppm/°C, meaning the ratio of wiper voltage to end-to-end voltage remains highly stable over temperature. Its absolute RTOTAL temperature coefficient is ±300 ppm/°C, but the ratiometric spec is most relevant for voltage-divider applications. This performance is validated across –40°C to +85°C and enables precise analog trimming in thermally varying environments without external compensation-confirming the X9315WSI-2.7T1's suitability for industrial sensor interfaces.
Is the X9315WSI-2.7T1 RoHS compliant?
Yes, the X9315WSI-2.7T1 is RoHS compliant and employs 100% matte tin (e3) termination finish. It meets IPC/JEDEC J-STD-020 moisture sensitivity level requirements for Pb-free reflow and is compatible with both SnPb and lead-free soldering processes. The device is packaged in an 8-lead SOIC (M8.15E) with no lead content in die attach, molding compound, or plating-fully satisfying EU RoHS Directive 2011/65/EU and related global environmental compliance mandates for the X9315WSI-2.7T1.
X9315WSI-2.7T1 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:
- 2.7V ~ 5.5V
- 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):
- 400
X9315WSI-2.7T1 FAQ
1.How can I place an order for X9315WSI-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9315WSI-2.7T1 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 X9315WSI-2.7T1 reliable?
The price and inventory of X9315WSI-2.7T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9315WSI-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9315WSI-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9315WSI-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9315WSI-2.7T1?
X9315WSI-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9315WSI-2.7T1 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 X9315WSI-2.7T1?
For technical support, including X9315WSI-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9315WSI-2.7T1 requirements.
6.How does Aetrix verify that X9315WSI-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9315WSI-2.7T1 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 X9315WSI-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9315WSI-2.7T1?
All X9315WSI-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9315WSI-2.7T1, 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 X9315WSI-2.7T1 part is unused and in its original packaging.
Return procedure for X9315WSI-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9315WSI-2.7T1 Tags
-
MCP4018T-103E/LT
Microchip Technology
-
MCP4018T-503E/LT
Microchip Technology
-
MCP4011T-103E/SN
Microchip Technology
-
MCP4018T-104E/LT
Microchip Technology
-
MCP4017T-503E/LT
Microchip Technology
-
MCP4018T-502E/LT
Microchip Technology
-
MCP4017T-103E/LT
Microchip Technology
-
MCP4531T-103E/MF
Microchip Technology
-
MCP4021T-202E/SN
Microchip Technology
-
MCP4023T-103E/CH
Microchip Technology
-
MCP4022T-503E/CH
Microchip Technology
-
MCP4551T-502E/MS
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
