My Inquiry
My Account
Renesas X9315WSI-2.7
- Part No.:
- X9315WSI-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9315WSI-2.7.pdf
- Description:
- IC DGTL POT 10KOHM 32TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,291
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X9315WSI-2.7 from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 31-element resistor array with 32 wiper tap positions, nonvolatile wiper position storage, and 2.7V to 5.5V single-supply operation. It functions as a three-terminal voltage divider or two-terminal variable resistor in precision analog trimming applications requiring temperature-stable resistance and power-up repeatability.
For engineers reviewing the X9315WSI-2.7 datasheet, X9315WSI-2.7 pinout, X9315WSI-2.7 application, or X9315WSI-2.7 equivalent, key selection criteria include its -40°C to +85°C industrial temperature range, 10kΩ end-to-end resistance, 3-wire serial interface timing (tCYC = 4µs), wiper resistance of 400–1000Ω at 2.7V, and ±1 MI absolute linearity specification.
Technical Context
The X9315WSI-2.7 uses a 5-bit up/down counter driving a decoder that selects one of 32 wiper positions across a monolithic 31-resistor ladder. Wiper movement follows make-before-break switching, preventing open-circuit transients during position changes.
Nonvolatile memory stores the last wiper position upon CS↑ with INC↑, enabling automatic restoration at power-up. The device operates in active mode (ICC1 ≤ 80µA) or standby (ISB ≤ 5µA), with all control inputs (CS, U/D, INC) compatible with CMOS logic levels referenced to VCC.
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 configurations |
| Wiper resolution | 32 taps (31 segments) - enables 3.125% step granularity for fine analog tuning |
| Supply voltage range | 2.7V to 5.5V - supports battery-powered and mixed-voltage systems without level-shifting |
| Active supply current | 80µA max - enables low-power trimming in always-on sensor or bias circuits |
| Standby current | 5µA max - minimizes quiescent drain during system sleep modes |
| Absolute linearity error | ±1 MI (minimum increment) - ensures predictable voltage division across full tap range |
| Temperature coefficient | ±300 ppm/°C - maintains resistance stability over industrial temperature range (-40°C to +85°C) |
Pinout & Package
Package: 8-lead SOIC (M8.15E), body width 3.90 mm, lead pitch 1.27 mm, RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Accepts 2.7V–5.5V; powers internal logic and resistor array; must be ≥ VH, VL, VW |
| VSS | Ground reference | Return path for supply and signal currents; establishes 0V reference for RH/VH and RL/VL terminals |
| RH/VH | High terminal | Fixed end of resistor array; voltage ranges from VSS to VCC; not polarity-fixed relative to wiper |
| RL/VL | Low terminal | Fixed end of resistor array; voltage ranges from VSS to VCC; directionality determined by U/D state |
| RW/VW | Wiper output | Movable tap point; delivers interpolated voltage between RH/VH and RL/VL; series resistance 400–1000Ω at 2.7V |
| CS | Chip select | Active-low enable; initiates wiper movement when LOW; triggers nonvolatile store on rising edge with INC HIGH |
| U/D | Direction control | Logic level sets wiper increment/decrement direction during INC transitions; may change dynamically while CS is LOW |
| INC | Increment clock | Negative-edge-triggered; advances wiper one position per valid edge; HIGH during CS↑ enables store operation |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last position for 100 years; eliminates need for external EEPROM or MCU initialization code at power-up |
| Make-before-break switching | Prevents open-circuit condition during wiper transitions; avoids signal dropout in critical analog paths |
| Temperature-compensated array | ±20 ppm/°C ratiometric TC ensures stable voltage division ratio across -40°C to +85°C |
| Low-power operation | 80µA active / 5µA standby enables use in energy-constrained portable or remote-sensor designs |
| 3-wire serial interface | Requires only CS, U/D, and INC signals - no clock or data lines needed; simplifies MCU GPIO usage |
Applications
| Audio Signal Level Control | Laser Diode Bias Adjustment |
|---|---|
Use Scenario: Programmable gain setting in headphone amplifier feedback networks. IC Role / Device Role / Timing Role: Two-terminal variable resistor configuring op-amp closed-loop gain; wiper position set once at factory and retained across power cycles. Use Value: Eliminates mechanical pot wear and drift; enables automated calibration during production using standard MCU GPIOs. |
Use Scenario: Precision DC bias current tuning for telecom laser diodes operating over wide ambient temperatures. IC Role / Device Role / Timing Role: Three-terminal potentiometer setting reference voltage for current-sense amplifier in constant-current driver. Use Value: ±300 ppm/°C RTOTAL TC and nonvolatile storage maintain optical output stability without recalibration after thermal cycling. |
| Sensor Offset Calibration | Power Supply Voltage Trim |
Use Scenario: Compensating zero-point drift in industrial pressure transducer signal conditioning. IC Role / Device Role / Timing Role: Adjustable voltage divider injecting offset correction into instrumentation amplifier input stage. Use Value: 32-tap resolution and ±1 MI linearity ensure sub-mV offset accuracy across full temperature range. |
Use Scenario: Fine-tuning output voltage of programmable DC-DC converter in FPGA power rails. IC Role / Device Role / Timing Role: Feedback network resistor in adjustable regulator IC; wiper position updated during system boot via host MCU. Use Value: 2.7V–5.5V supply compatibility allows direct control from 3.3V microcontrollers without level shifters. |
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% R tolerance | Requires I²C master; higher resolution but looser end-to-end tolerance affects absolute voltage accuracy | Preferred when dual independent pots or I²C bus integration is required; not drop-in due to different protocol and pinout |
| MCP41010-I/P | SPI interface, single-channel, 257-tap resolution, 10kΩ, ±20% R tolerance, 5V-only supply | Needs SPI clock and data lines; lacks 2.7V operation and nonvolatile store on power-up | Chosen for SPI-based systems where external EEPROM handles wiper retention; incompatible with 2.7V-only supplies |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9315WSI-2.7 offers unique advantages in minimal GPIO count (3-wire), guaranteed power-up repeatability without firmware intervention, and true 2.7V operation-making it optimal for cost-sensitive, low-pin-count industrial trimming where analog precision and supply flexibility are critical.
Availability
X9315WSI-2.7 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 product lifecycles.
Supply support for X9315WSI-2.7 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 (now part of Renesas Electronics) is a semiconductor manufacturer specializing in high-performance analog and mixed-signal ICs for industrial, communications, and computing markets.
The X9315 family was designed specifically for solid-state replacement of mechanical potentiometers in precision analog trimming applications demanding nonvolatile storage, low power, and temperature-stable resistance performance.
FAQ
What is the operating temperature range for the X9315WSI-2.7?
The X9315WSI-2.7 is rated for industrial operation from -40°C to +85°C, as confirmed in the Ordering Information table on page 2 of FN8179 Rev.2.00. This range applies specifically to the X9315WSI-2.7 variant, distinguishing it from commercial-grade versions limited to 0°C–70°C. The device maintains specified electrical performance-including ±20% end-to-end resistance tolerance and ±1 MI linearity-across this full range.
Does the X9315WSI-2.7 retain its wiper position after power loss?
Yes, the X9315WSI-2.7 stores the wiper position in nonvolatile memory with 100-year data retention, as specified in the Endurance and Data Retention table on page 7 of FN8179 Rev.2.00. Upon power-up, the stored value is automatically recalled to the wiper, ensuring repeatable analog settings without MCU initialization. This behavior is intrinsic to the X9315WSI-2.7 and requires no external components.
What is the maximum wiper current rating for the X9315WSI-2.7?
The X9315WSI-2.7 has a maximum wiper current (IW) rating of ±3.75mA, as stated under Recommended Operating Conditions on page 6 of FN8179 Rev.2.00. Exceeding this limit risks permanent damage to the internal wiper switch. This rating is independent of supply voltage and applies across the full -40°C to +85°C temperature range.
Can the X9315WSI-2.7 operate from a 2.7V supply only?
Yes, the X9315WSI-2.7 is explicitly specified for 2.7V to 5.5V operation, per the VCC LIMITS column in the Ordering Information table (page 3). Unlike standard X9315 variants rated for 5V ±10%, the "-2.7" suffix denotes guaranteed functionality down to 2.7V, including full 32-tap resolution, nonvolatile store, and 5µA standby current-all validated per datasheet test conditions.
How does the X9315WSI-2.7 differ from the X9315WSZ-2.7?
The X9315WSI-2.7 uses a standard SOIC package (M8.15E) with SnPb-compatible matte tin plating, while the X9315WSZ-2.7 uses a Pb-free SOIC package (M8.15) with 100% matte tin plate plus anneal (e3 finish). Both share identical electrical specifications, pinout, and temperature range (-40°C to +85°C), but the X9315WSI-2.7 is intended for legacy assembly processes, whereas X9315WSZ-2.7 complies fully with RoHS Directive 2011/65/EU.
X9315WSI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-2.7 FAQ
1.How can I place an order for X9315WSI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9315WSI-2.7 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-2.7 reliable?
The price and inventory of X9315WSI-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9315WSI-2.7 is usually 5 days.
3.What payment methods are accepted for X9315WSI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9315WSI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9315WSI-2.7?
X9315WSI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9315WSI-2.7 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-2.7?
For technical support, including X9315WSI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9315WSI-2.7 requirements.
6.How does Aetrix verify that X9315WSI-2.7 is sourced from the original manufacturer or authorized distributors?
All X9315WSI-2.7 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-2.7 meets industry standards.
7.What is the process for return or replacement of X9315WSI-2.7?
All X9315WSI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9315WSI-2.7, 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-2.7 part is unused and in its original packaging.
Return procedure for X9315WSI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9315WSI-2.7 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…
