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Renesas X9315TSI-2.7
- Part No.:
- X9315TSI-2.7
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9315TSI-2.7.pdf
- Description:
- IC DGTL POT 100KOHM 32TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,135
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Product details
Overview
X9315TSI-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 3-wire serial interface (CS/U/D/INC). It operates from 2.7V to 5.5V, delivers ±20% end-to-end resistance tolerance, and supports industrial temperature range (–40°C to +85°C) in an 8-lead SOIC package. It functions as a three-terminal voltage divider or two-terminal variable resistor in precision analog trimming applications.
For engineers reviewing the X9315TSI-2.7 datasheet, X9315TSI-2.7 pinout, X9315TSI-2.7 application, or X9315TSI-2.7 equivalent, key selection criteria include its 2.7V minimum supply, 10kΩ total resistance, nonvolatile recall on power-up, low 5µA standby current, and compatibility with digital control systems requiring stable analog adjustment without mechanical wear.
Technical Context
The X9315TSI-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 is edge-triggered via INC input with direction controlled by U/D, and CS enables selection and initiates nonvolatile store when transitioned high while INC is high.
Its resistor array features temperature-compensated elements with ±300 ppm/°C total resistance TC and ±20 ppm/°C ratiometric TC, ensuring stable voltage division over temperature. The wiper terminal exhibits 400–1000Ω resistance at 2.7V supply, and the device guarantees 100,000 data changes per bit and 100-year data retention in nonvolatile memory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total resistance (RTOTAL) | 10kΩ - fixed end-to-end resistance value defining full-scale analog adjustment range |
| Supply voltage range | 2.7V to 5.5V - enables direct operation from 3.3V or 5V rails without level-shifting |
| Wiper positions | 32 taps - provides 31-step resolution for precise analog parameter control |
| Standby current | 5µA max - minimizes quiescent power in battery-powered or always-on systems |
| Nonvolatile store time | 5–10ms - defines minimum CS high pulse width required to reliably save wiper position |
| Operating temperature | –40°C to +85°C - qualified for industrial-grade embedded and automotive cabin applications |
| Wiper resistance | 400–1000Ω at 2.7V - impacts loading error in high-impedance voltage divider configurations |
Pinout & Package
Package: 8-lead narrow-body SOIC (M8.15E), RoHS-compliant, Pb-free, body dimensions 4.90mm × 3.90mm × 1.75mm max.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Must be ≥ VH, VL, VW; powers internal logic and resistor array |
| VSS | Ground reference | Return path for supply and signal currents; establishes 0V reference |
| RH/VH | High terminal | Fixed end of resistor array; connects to maximum potential in voltage divider |
| RL/VL | Low terminal | Fixed end of resistor array; connects to minimum potential (e.g., VSS) |
| RW/VW | Wiper output | Movable tap point; delivers adjustable voltage/current based on stored position |
| CS | Chip select | Active-low enable; rising edge with INC=HIGH triggers nonvolatile store |
| U/D | Up/down direction control | Logic level sets increment/decrement direction for wiper movement |
| INC | Increment clock input | Negative-edge triggered; advances wiper one step per valid transition |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper position storage | Retains last set tap position across power cycles, enabling consistent startup behavior |
| 3-wire serial interface | Requires only CS, U/D, and INC signals-no clock or data lines-simplifying MCU GPIO usage |
| Temperature-compensated resistor array | ±20 ppm/°C ratiometric TC ensures stable voltage division ratio over temperature |
| Make-before-break wiper switching | Prevents open-circuit transients during tap transitions, avoiding signal glitches in sensitive circuits |
| Low-power CMOS design | 80µA active current at 2.7V enables use in energy-constrained sensor and portable systems |
Applications
| Audio Signal Level Control | Laser Diode Bias Adjustment |
|---|---|
Use Scenario: Adjusting gain or volume in analog audio paths of professional mixers or IoT voice interfaces. IC Role / Device Role / Timing Role: Three-terminal voltage divider setting reference voltage for op-amp feedback networks. Use Value: Eliminates mechanical pot wear and drift; retains user-set volume after power cycling. |
Use Scenario: Fine-tuning bias current for laser diodes in fiber-optic transceivers or medical laser modules. IC Role / Device Role / Timing Role: Two-terminal variable resistor in constant-current source configuration with external transistor. Use Value: Enables factory calibration and field recalibration via digital command; avoids manual re-trimming. |
| Power Supply Feedback Divider | Sensor Offset Calibration |
Use Scenario: Dynamically adjusting output voltage of DC-DC converters in adaptive power management systems. IC Role / Device Role / Timing Role: Upper leg of feedback resistor divider controlling regulation reference point. Use Value: Supports remote voltage programming and load-line compensation without hardware change. |
Use Scenario: Compensating zero-point offset in precision temperature or pressure sensor signal chains. IC Role / Device Role / Timing Role: Adjustable voltage injection node in instrumentation amplifier input stage. Use Value: Enables one-time calibration during production and periodic recalibration in field-deployed equipment. |
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 | 2-channel I²C interface, 10kΩ, 256-tap resolution, 2.7–5.5V supply | Supports dual independent pots; requires I²C bus and address configuration | Choose when multi-pot integration or higher resolution is needed; not drop-in compatible |
| MCP41010-I/P | Single-channel SPI interface, 10kΩ, 257-tap resolution, 2.7–5.5V supply | Uses 4-wire SPI (CS/SCK/SDI/SDO); no nonvolatile store on power-down | Choose when SPI-native microcontrollers are used and EEPROM persistence is not required |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9315TSI-2.7 offers simpler 3-wire control, guaranteed nonvolatile recall, and lower pin count-but lacks multi-channel capability or SPI/I²C protocol flexibility.
Availability
X9315TSI-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supplies, and audio equipment requiring stable component supply with long-term availability and RoHS compliance.
Supply support for X9315TSI-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 Corporation (now part of Renesas Electronics) designs high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.
The X9315 series was developed as a solid-state replacement for mechanical potentiometers in systems demanding reliability, programmability, and nonvolatile settings retention-targeting industrial control, test equipment, and communication infrastructure.
FAQ
What is the supply voltage range for the X9315TSI-2.7?
The X9315TSI-2.7 operates from 2.7V to 5.5V, making it compatible with both 3.3V and 5V logic systems. This wide range allows direct interfacing with common microcontroller I/O without level shifters, and the device maintains specified performance-including wiper resistance and active current-across the entire range. The X9315TSI-2.7 datasheet confirms this in the Recommended Operating Conditions table on page 6.
Does the X9315TSI-2.7 retain its wiper position after power loss?
Yes, the X9315TSI-2.7 stores the current wiper position in nonvolatile memory and automatically recalls it on power-up. This feature is enabled by asserting CS HIGH while INC is HIGH-a store command that takes 5–10ms to complete. Once stored, the setting persists for up to 100 years. The X9315TSI-2.7 implements this using EEPROM technology integrated into the same die as the resistor array.
What package type and lead count does the X9315TSI-2.7 use?
The X9315TSI-2.7 is housed in an 8-lead narrow-body SOIC package (JEDEC MS-012-AA, drawing M8.15E), with dimensions 4.90mm × 3.90mm × 1.75mm max. It is RoHS-compliant and Pb-free, with matte tin (e3) termination. Pin 1 is identified by a notch or mark in the index area, and the package is rated for industrial temperature operation (–40°C to +85°C).
How many wiper positions does the X9315TSI-2.7 support?
The X9315TSI-2.7 provides 32 discrete wiper tap positions, corresponding to a 5-bit counter (0–31). These positions span the full 10kΩ resistor array composed of 31 equal segments. Each step represents a nominal 322Ω increment (10kΩ ÷ 31), and absolute linearity error is specified at ±1 minimum increment (±322Ω) across the range.
What is the maximum wiper current rating for the X9315TSI-2.7?
The X9315TSI-2.7 specifies a maximum wiper current (IW) of ±3.75mA under recommended operating conditions. Exceeding this may cause localized heating or accelerated wear of the internal switch network. The device's 10mW maximum power rating and wiper resistance (400–1000Ω at 2.7V) further constrain safe operating conditions-designers must ensure voltage differentials across RH–RL remain within limits to avoid exceeding IW.
X9315TSI-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):
- 100k
- 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
X9315TSI-2.7 FAQ
1.How can I place an order for X9315TSI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9315TSI-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 X9315TSI-2.7 reliable?
The price and inventory of X9315TSI-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 X9315TSI-2.7 is usually 5 days.
3.What payment methods are accepted for X9315TSI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9315TSI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9315TSI-2.7?
X9315TSI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9315TSI-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 X9315TSI-2.7?
For technical support, including X9315TSI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9315TSI-2.7 requirements.
6.How does Aetrix verify that X9315TSI-2.7 is sourced from the original manufacturer or authorized distributors?
All X9315TSI-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 X9315TSI-2.7 meets industry standards.
7.What is the process for return or replacement of X9315TSI-2.7?
All X9315TSI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with X9315TSI-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 X9315TSI-2.7 part is unused and in its original packaging.
Return procedure for X9315TSI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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