My Inquiry
My Account
Renesas X9315UM-2.7T1
- Part No.:
- X9315UM-2.7T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
X9315UM-2.7T1.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,514
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
X9315UM-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, delivers ±20% end-to-end resistance tolerance, and supports industrial-grade temperature range (–40°C to +85°C) in an 8-lead MSOP package. It serves as a solid-state replacement for mechanical potentiometers in precision analog trimming applications.
For engineers reviewing the X9315UM-2.7T1 datasheet, X9315UM-2.7T1 pinout, X9315UM-2.7T1 application, or X9315UM-2.7T1 equivalent, this page provides verified technical context, exact pin functions, confirmed RTOTAL = 50kΩ specification, wiper resistance values at 2.7V, nonvolatile store timing (10 ms), and real-world use cases in voltage reference calibration and sensor signal conditioning.
Technical Context
The X9315UM-2.7T1 integrates a 5-bit up/down counter, nonvolatile EEPROM memory, and a 31-resistor ladder network with make-before-break wiper switching. Its control logic responds to negative-edge-triggered INC pulses while U/D sets direction, and CS enables selection and initiates nonvolatile store when raised high with INC high.
It features temperature-compensated resistor elements (±300 ppm/°C RTOTAL TC), ratiometric stability (±20 ppm/°C), and low-noise operation (–120 dBV @ 1 kHz). Wiper resistance is 400–1000 Ω at VCC = 2.7V, and absolute linearity error is limited to ±1 MI (minimum increment = RTOTAL/31 ≈ 1.61 kΩ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RTOTAL | 50 kΩ - fixed end-to-end resistance defining full-scale analog adjustment range |
| VCC Range | 2.7 V to 5.5 V - supports single-supply operation from Li-ion or 3.3 V systems without level-shifting |
| Wiper Positions | 32 taps - enables 31-step resolution (≈3.2% per step) for fine-grained analog control |
| Nonvolatile Store Time | 5–10 ms - defines minimum CS high pulse width required to reliably save wiper position to EEPROM |
| Wiper Resistance | 400–1000 Ω at 2.7 V - impacts loading error in high-impedance divider configurations |
| Active Current | 80 µA max - enables ultra-low-power trimming in battery-operated sensor nodes |
| Standby Current | 5 µA max - ensures minimal quiescent draw during system sleep modes |
Pinout & Package
Package: 8-lead MSOP (Pb-free, RoHS-compliant), JEDEC MO-187AA / Intersil M8.118, body dimensions 3.0 mm × 3.0 mm × 0.85 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RH/VH | High terminal of resistor array | Connects to maximum potential (VCC or reference); forms top node of voltage divider |
| RL/VL | Low terminal of resistor array | Connects to minimum potential (VSS or ground); forms bottom node of voltage divider |
| RW/VW | Wiper output terminal | Delivers adjustable voltage/current; series resistance affects accuracy in high-Z loads |
| VSS | Ground reference | Return path for all internal logic and analog circuitry; must be low-impedance |
| VCC | Supply voltage input | Power source for digital control and resistor array; must be ≥ VH, VL, VW |
| U/D | Up/down direction control | Logic level determines wiper movement direction during INC transitions |
| INC | Increment clock input | Negative-edge-triggered; advances or retreats wiper one position per valid edge |
| CS | Chip select / store enable | Active-low selection; rising edge with INC high initiates nonvolatile store |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last-set position across power cycles; eliminates startup recalibration |
| 3-wire serial interface | Requires only CS, U/D, and INC signals-no clock or data lines-reducing MCU GPIO usage |
| Make-before-break switching | Prevents open-circuit transients during wiper movement; avoids signal dropout in critical paths |
| Temperature-compensated array | ±300 ppm/°C RTOTAL drift enables stable gain/offset trimming over –40°C to +85°C |
| Low power CMOS design | 80 µA active / 5 µA standby current supports always-on analog subsystems |
Applications
| Reference Voltage Calibration | Sensor Signal Conditioning |
|---|---|
Use Scenario: Adjusting feedback resistors in precision voltage references (e.g., LM317, LT1021) to achieve ±0.5% output accuracy. IC Role / Device Role / Timing Role: Two-terminal variable resistor setting reference divider ratio; wiper position stored at factory trim. Use Value: Eliminates manual potentiometer adjustment; enables automated production calibration and field recalibration via MCU. |
Use Scenario: Scaling thermistor or RTD bridge outputs to match ADC input range in industrial temperature monitors. IC Role / Device Role / Timing Role: Three-terminal potentiometer acting as programmable gain/offset stage in analog front-end. Use Value: Compensates for sensor unit-to-unit variation and thermal drift without hardware change. |
| Audio Level Control | Power Supply Trim |
Use Scenario: Implementing digital volume control in low-noise audio preamplifiers where mechanical pots introduce scratch noise. IC Role / Device Role / Timing Role: Voltage divider attenuating line-level signals; wiper updated via pushbutton or encoder interface. Use Value: Provides silent, repeatable, and ESD-robust attenuation with <–120 dBV noise floor. |
Use Scenario: Fine-tuning output voltage of isolated DC-DC converters in telecom power modules to meet tight regulation specs. IC Role / Device Role / Timing Role: Feedback resistor in optocoupler-isolated voltage sense loop; wiper adjusted during burn-in test. Use Value: Enables post-manufacture correction of transformer tolerance and PCB trace losses without rework. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5241BRMZ50 | I²C interface, 64-tap resolution, 200 kΩ max wiper resistance at 2.7 V, 100 kΩ RTOTAL option only | Requires I²C host support; higher RTOTAL limits current drive capability in low-impedance dividers | Select if I²C bus is available and finer 1.56% step resolution is needed over X9315UM-2.7T1's 3.2% steps |
| MCP41050-I/P | SPITM interface, 257-tap resolution, 100 Ω typical wiper resistance, 5.5 V max VCC, no 2.7 V min spec | Higher resolution but lacks guaranteed 2.7 V operation; wiper resistance too low for noise-sensitive analog paths | Select for high-precision digital pot applications above 3 V where SPI compatibility and lower wiper R are prioritized |
Compared with AD5241BRMZ50 and MCP41050-I/P, the X9315UM-2.7T1 offers deterministic 3-wire timing, guaranteed 2.7 V operation, and optimized wiper resistance for low-noise analog trimming-making it preferable for industrial sensor and reference circuits where simplicity and voltage margin matter most.
Availability
X9315UM-2.7T1 is available at Aetrix Electronics and suitable for industrial temperature monitoring, precision power supply calibration, and sensor signal conditioning requiring stable component supply across extended lifecycle programs.
Supply support for X9315UM-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) designs high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.
The X9315 family was engineered specifically for replacing mechanical potentiometers in industrial and instrumentation systems where reliability, nonvolatility, and low-voltage operation are essential.
FAQ
What is the guaranteed minimum operating voltage for the X9315UM-2.7T1?
The X9315UM-2.7T1 is specified for operation from 2.7 V to 5.5 V. This 2.7 V minimum enables reliable function in single-cell Li-ion and 3.3 V systems without external regulators. The "-2.7" suffix explicitly denotes this extended low-voltage capability, distinguishing it from standard 5 V-only variants like X9315UMZ.
Does the X9315UM-2.7T1 retain its wiper position after power loss?
Yes, the X9315UM-2.7T1 stores the wiper position in nonvolatile EEPROM memory. Upon power-up, it automatically recalls the last stored value, eliminating the need for host MCU initialization. The device guarantees 100 years of data retention and 100,000 store cycles-critical for unattended industrial equipment using the X9315UM-2.7T1.
What is the wiper resistance of the X9315UM-2.7T1 at 2.7 V supply?
At VCC = 2.7 V, the X9315UM-2.7T1 exhibits a wiper resistance of 400 Ω (typical) to 1000 Ω (maximum). This higher resistance compared to 5 V operation (200–400 Ω) directly impacts loading error in high-impedance voltage dividers and must be accounted for in precision analog designs using the X9315UM-2.7T1.
Can the X9315UM-2.7T1 be used as a two-terminal variable resistor?
Yes, the X9315UM-2.7T1 supports both three-terminal potentiometer and two-terminal variable resistor configurations. In two-terminal mode, RH/VH and RW/VW (or RL/VL and RW/VW) are used, effectively creating a digitally adjustable resistance element. This configuration is commonly applied in LED current control and bias network tuning using the X9315UM-2.7T1.
What package type is used for the X9315UM-2.7T1?
The X9315UM-2.7T1 is supplied in an 8-lead MSOP package (JEDEC MO-187AA, Intersil M8.118), measuring 3.0 mm × 3.0 mm × 0.85 mm. It is Pb-free and RoHS-compliant, with matte tin (e3) termination suitable for both SnPb and lead-free reflow processes-ensuring compatibility in modern manufacturing flows for the X9315UM-2.7T1.
X9315UM-2.7T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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:
- 2.7V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-MSOP
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 400
X9315UM-2.7T1 FAQ
1.How can I place an order for X9315UM-2.7T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9315UM-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 X9315UM-2.7T1 reliable?
The price and inventory of X9315UM-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 X9315UM-2.7T1 is usually 5 days.
3.What payment methods are accepted for X9315UM-2.7T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9315UM-2.7T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9315UM-2.7T1?
X9315UM-2.7T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9315UM-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 X9315UM-2.7T1?
For technical support, including X9315UM-2.7T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9315UM-2.7T1 requirements.
6.How does Aetrix verify that X9315UM-2.7T1 is sourced from the original manufacturer or authorized distributors?
All X9315UM-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 X9315UM-2.7T1 meets industry standards.
7.What is the process for return or replacement of X9315UM-2.7T1?
All X9315UM-2.7T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9315UM-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 X9315UM-2.7T1 part is unused and in its original packaging.
Return procedure for X9315UM-2.7T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
X9315UM-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…
