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Renesas X9313USZ-3T1
- Part No.:
- X9313USZ-3T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
X9313USZ-3T1.pdf
- Description:
- IC DGTL POT 50KOHM 32TAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,014
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Product details
Overview
X9313USZ-3T1 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 ±VCC terminal voltage capability. It functions as a solid-state replacement for mechanical potentiometers in precision analog trimming applications requiring power-up recall, such as DC bias adjustment in op-amp circuits and sensor calibration networks.
For engineers reviewing the X9313USZ-3T1 datasheet, X9313USZ-3T1 pinout, X9313USZ-3T1 application, or X9313USZ-3T1 equivalent, key selection criteria include its 3V–5.5V supply range, 10kΩ end-to-end resistance, SOIC-8 package, 5µs INC-to-VW response, and guaranteed 100-year data retention-critical for unattended industrial systems and field-deployed instrumentation.
Technical Context
The X9313USZ-3T1 implements a 31-element resistor array with make-before-break wiper switching, enabling glitch-free tap transitions. Its 5-bit up/down counter drives a decoder that selects one of 32 wiper positions, with CS-controlled nonvolatile store/recall synchronized to INC high state.
Operation requires only three digital control lines (CS, U/D, INC) and supports bidirectional wiper movement without external clock. The device operates in active mode (≤3mA) or standby (≤500µA), with wiper resistance specified at 40Ω typical (VCC = 5V) and absolute linearity error limited to ±1 MI (minimum increment).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10kΩ ±20% - defines full-scale analog range and current-handling capability in voltage divider or variable resistor configurations |
| Supply voltage range | 3V to 5.5V - enables direct compatibility with both 3.3V and 5V logic and analog subsystems |
| Wiper resolution | 32 taps (31 segments) - provides 3.125% step resolution for fine analog parameter tuning |
| Nonvolatile memory endurance | 100,000 write cycles - supports frequent recalibration during product lifetime without wear-out risk |
| Power-up behavior | Recalls last stored wiper position - eliminates need for host MCU initialization sequence in power-cycled systems |
| Terminal voltage range | −VCC to +VCC - allows bipolar signal handling (e.g., ±5V rails) without external level-shifting circuitry |
| INC-to-VW propagation delay | 5µs maximum - ensures deterministic timing for closed-loop analog control loops |
Pinout & Package
Package: 8-lead SOIC (Pb-free, RoHS compliant), 3.9mm × 4.9mm body, 1.27mm lead pitch per JEDEC MS-012-AA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply rail | Provides power for internal logic and resistor array; must be stable before CS activation to prevent spurious stores |
| VSS | Ground reference | Common return for all digital inputs and analog terminals; forms reference for ±VCC terminal voltage specification |
| CS | Chip select input | Active-low enable; rising edge with INC = HIGH triggers nonvolatile store; sets device into standby when deasserted |
| U/D | Direction control | Logic level determines whether INC toggles wiper up (HIGH) or down (LOW); may change dynamically during CS low |
| INC | Increment clock input | Negative-edge triggered; each valid edge moves wiper one tap; timing critical for reliable operation (tCYC ≥ 2µs) |
| RH/VH | High terminal | Analog endpoint of resistor array; voltage polarity relative to wiper depends on U/D direction setting, not fixed potential |
| RL/VL | Low terminal | Analog endpoint opposite RH/VH; forms complete resistive path with RH/VH and RW/VW |
| RW/VW | Wiper output | Movable tap point; series resistance ≤100Ω ensures minimal loading in high-impedance feedback paths |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last position across power cycles for zero-initialization startup in embedded sensors and power supplies |
| 3-wire serial interface | Eliminates need for dedicated SPI/I²C peripherals-compatible with GPIO-driven microcontrollers using minimal firmware overhead |
| Make-before-break switching | Prevents open-circuit glitches during wiper transitions, essential for stable operation in audio gain control and feedback loop trimming |
| ±VCC terminal voltage rating | Supports direct connection to bipolar op-amp rails (e.g., ±5V, ±12V) without external clamping diodes or level shifters |
| Temperature-compensated array | ±300 ppm/°C end-to-end resistance drift ensures consistent trim accuracy over −40°C to +70°C commercial temperature range |
Applications
| DC Bias Adjustment in Op-Amp Circuits | Sensor Calibration Networks |
|---|---|
Use Scenario: Setting precise DC offset null in instrumentation amplifiers used in medical ECG front-ends. IC Role / Device Role / Timing Role: Two-terminal variable resistor configuring amplifier input bias network; wiper position set once at factory and recalled on every power-up. Use Value: Eliminates manual potentiometer adjustment and soldering; maintains calibration integrity over 100 years without drift-induced recalibration. | Use Scenario: Compensating for offset and gain errors in bridge-based pressure transducers deployed in HVAC controllers. IC Role / Device Role / Timing Role: Three-terminal potentiometer forming part of Wheatstone bridge completion network; adjusted during system self-test sequence. Use Value: Enables automated factory calibration via MCU command; nonvolatile storage preserves compensation values across seasonal power outages. |
| Programmable Voltage Reference Trim | Audio Volume Control Interface |
Use Scenario: Fine-tuning output voltage of adjustable LDO regulators in telecom base station power modules. IC Role / Device Role / Timing Role: Variable resistor in feedback divider of TLVH431-type shunt regulator; wiper updated only during maintenance mode. Use Value: Achieves ±0.5% output accuracy without laser trimming; supports remote firmware updates to adjust voltage setpoints. | Use Scenario: Implementing mute-ramp and channel-balance functions in professional audio mixers with digital control panels. IC Role / Device Role / Timing Role: Linear taper potentiometer in analog signal path; wiper moved incrementally under user button press with debounce timing. Use Value: Provides smooth, glitch-free attenuation with no audible clicks due to make-before-break architecture and 5µs response. |
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, ±15V tolerant terminals | Requires I²C master; higher resolution but no native power-up recall (requires external EEPROM or MCU restore) | Select when multi-channel coordination or finer resolution is required and I²C infrastructure exists |
| MCP41010-I/P | SPI interface, single-channel, 256-tap, 10kΩ, VDD = 2.7–5.5V, no nonvolatile store | Needs continuous MCU refresh; lacks power-up recall; faster SPI clock support (10MHz vs. X9313's 500kHz effective rate) | Select when high-speed digital updates are prioritized over autonomous power-cycle recovery |
Compared with AD5243BRMZ10 and MCP41010-I/P, the X9313USZ-3T1 uniquely combines 3-wire simplicity, guaranteed power-up recall, and ±VCC terminal tolerance-making it optimal for cost-sensitive, single-channel analog trimming where reliability across uncontrolled power events is mandatory.
Availability
X9313USZ-3T1 is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device DC bias adjustment, and programmable power supply trimming requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for X9313USZ-3T1 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 solutions provider, now part of Renesas Electronics, with deep expertise in high-reliability industrial and infrastructure ICs.
The X9313 family was designed specifically for solid-state replacement of mechanical potentiometers in analog signal conditioning, offering nonvolatile memory, wide supply range, and robust terminal voltage ratings for demanding embedded environments.
FAQ
What is the guaranteed power-up behavior of the X9313USZ-3T1?
The X9313USZ-3T1 automatically recalls the last wiper position stored in nonvolatile memory upon power application. This occurs within 10µs after VCC stabilizes, ensuring repeatable analog settings without MCU intervention. The device remains in standby until CS is asserted, preventing unintended wiper movement during power ramp.
Can the X9313USZ-3T1 operate with bipolar analog signals?
Yes. The X9313USZ-3T1 supports terminal voltages from −VCC to +VCC, allowing direct use with ±5V or ±12V op-amp rails. For example, with VCC = 5V, RH/VH and RL/VL may swing from −5V to +5V relative to VSS, provided |VH − VL| ≤ 10V as specified for the X9313U variant.
How many wiper position changes can the X9313USZ-3T1 endure?
The X9313USZ-3T1 guarantees 100,000 data changes per bit in its nonvolatile memory register. This endurance rating applies to store operations (CS↑ with INC = HIGH) and is validated across the full commercial temperature range (0°C to +70°C), supporting decades of field recalibration in industrial equipment.
Does the X9313USZ-3T1 require an external clock source?
No. The X9313USZ-3T1 uses only the asynchronous INC input as its timing reference-no external clock is needed. Each negative edge on INC advances the internal 5-bit counter, and the U/D input determines direction. This simplifies integration with any microcontroller GPIO capable of generating clean, debounced pulses.
What is the maximum allowable voltage difference between RH/VH and RL/VL terminals?
For the X9313USZ-3T1 (X9313U variant), the maximum voltage difference |VH − VL| is 10V. This limit is independent of VCC and ensures safe operation of the internal resistor array and wiper switches. Exceeding this may cause irreversible damage, even if individual terminal voltages remain within −VCC to +VCC bounds.
X9313USZ-3T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 3V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 40
X9313USZ-3T1 FAQ
1.How can I place an order for X9313USZ-3T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9313USZ-3T1 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 X9313USZ-3T1 reliable?
The price and inventory of X9313USZ-3T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9313USZ-3T1 is usually 5 days.
3.What payment methods are accepted for X9313USZ-3T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9313USZ-3T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9313USZ-3T1?
X9313USZ-3T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9313USZ-3T1 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 X9313USZ-3T1?
For technical support, including X9313USZ-3T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9313USZ-3T1 requirements.
6.How does Aetrix verify that X9313USZ-3T1 is sourced from the original manufacturer or authorized distributors?
All X9313USZ-3T1 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 X9313USZ-3T1 meets industry standards.
7.What is the process for return or replacement of X9313USZ-3T1?
All X9313USZ-3T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9313USZ-3T1, 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 X9313USZ-3T1 part is unused and in its original packaging.
Return procedure for X9313USZ-3T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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