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Renesas X9317ZV8T1
- Part No.:
- X9317ZV8T1
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
X9317ZV8T1.pdf
- Description:
- IC DGTL POT 1KOHM 100TAP 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,814
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Product details
Overview
X9317ZV8T1 from Renesas Electronics is a digitally controlled potentiometer (XDCP™) implementing a 99-element resistor array with 100 wiper tap positions, nonvolatile wiper position storage, and 3-wire up/down serial interface. It operates from 2.7V to 5.5V, delivers ±20% end-to-end resistance tolerance, and supports voltage divider or variable resistor configurations in precision analog trimming applications.
For engineers reviewing the X9317ZV8T1 datasheet, X9317ZV8T1 pinout, X9317ZV8T1 application, or X9317ZV8T1 equivalent, this device serves as a solid-state replacement for mechanical potentiometers in DC bias adjustment, laser diode bias control, gain/offset trim, and LCD bias circuits where power-up repeatability and long-term stability are required.
Technical Context
The X9317ZV8T1 integrates a 7-bit up/down counter, decoder, and nonvolatile memory to control wiper position across 100 discrete taps. Its "make-before-break" switching ensures glitch-free transitions during wiper movement, while temperature-compensated resistor elements maintain ratiometric stability within ±20 ppm/°C.
Control logic responds to CS (chip select), U/D (direction), and edge-triggered INC (increment) signals. A HIGH-to-LOW transition on INC moves the wiper; CS returning HIGH with INC HIGH initiates nonvolatile store. Wiper resistance is 200 Ω (typ) at 5V and 400 Ω (typ) at 2.7V, with 100,000-cycle endurance and 100-year data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10 kΩ ±20% - defines full-scale analog range and load interaction in voltage divider or current-limiting roles |
| Wiper tap count | 100 positions - enables 1% resolution for fine-grained analog adjustments without external DACs |
| Supply voltage range | 2.7 V to 5.5 V - supports single-supply operation across industrial and commercial voltage rails |
| Standby current | <5 µA - minimizes quiescent power in battery-backed or low-power systems |
| Nonvolatile store time | 5–10 ms - determines minimum system delay before safe deassertion of CS after wiper positioning |
| Wiper resistance | 200 Ω (typ) at 5 V - sets minimum achievable series impedance and impacts signal integrity in high-impedance nodes |
| Relative linearity | ±0.2 MI - ensures monotonic step response critical for closed-loop calibration and feedback paths |
Pinout & Package
Package: 8-lead TSSOP (RoHS-compliant, JEDEC MO-153 variation AC, body size 4.4 mm × 3.0 mm × 1.2 mm max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INC) | Increment clock input | Negative-edge-triggered control signal; toggling moves wiper up/down per U/D state |
| 2 (U/D) | Direction control | Logic level selects wiper increment (HIGH) or decrement (LOW) on each INC edge |
| 3 (RH) | High terminal | Fixed end of resistor array; connects to higher-potential node in voltage divider configuration |
| 4 (VSS) | Ground reference | Return path for supply and signal currents; must be low-impedance for noise-sensitive analog use |
| 5 (RW) | Wiper output | Movable terminal; presents tapped voltage or variable resistance between RH and RL |
| 6 (RL) | Low terminal | Fixed end of resistor array; connects to lower-potential or ground-referenced node |
| 7 (CS) | Chip select | Active-low enable; LOW enables interface; HIGH with INC HIGH triggers nonvolatile store |
| 8 (VCC) | Power supply | 2.7–5.5 V CMOS supply; powers logic, memory, and resistor array; decoupling required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last programmed position across power cycles-enables repeatable startup without host reinitialization |
| Temperature-compensated array | ±300 ppm/°C absolute RTOTAL drift and ±20 ppm/°C ratiometric coefficient-maintains voltage division accuracy over -40°C to +85°C |
| Make-before-break switching | Prevents open-circuit transients during wiper movement-critical for stable bias in amplifiers and regulators |
| Low-noise performance | -120 dBV (ref 1 kHz) - suitable for audio and precision sensor signal paths where analog integrity is essential |
| High reliability | 100,000 write cycles per bit and 100-year data retention-meets long-lifecycle requirements in industrial and medical equipment |
Applications
| LCD Bias Control | DC Bias Adjustment |
|---|---|
Use Scenario: Setting precise common-mode voltage and gamma correction levels in TFT-LCD column drivers. IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as adjustable voltage divider between VDD and ground. Use Value: Enables factory calibration and dynamic contrast tuning without mechanical trimmers or EEPROM-based DACs. | Use Scenario: Compensating offset drift in op-amp input stages across temperature and aging. IC Role / Device Role / Timing Role: Two-terminal variable resistor in feedback or input bias network. Use Value: Provides stable, repeatable DC operating point with no manual intervention or recalibration needed after power loss. |
| Laser Diode Bias Control | Voltage Regulator Output Control |
Use Scenario: Fine-tuning constant-current source setpoint for semiconductor laser diodes in optical transceivers. IC Role / Device Role / Timing Role: Adjustable current-sense resistor in high-side current mirror configuration. Use Value: Delivers sub-mA resolution and thermal stability to maintain optical output power within safety and compliance limits. | Use Scenario: Adjusting output voltage of adjustable LDOs or switching regulators via feedback divider network. IC Role / Device Role / Timing Role: Upper leg of resistive divider connected between VOUT and ADJ/VREF pins. Use Value: Allows remote digital trimming of regulated output without hardware changes-supports multi-voltage platform designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5171BRMZ-10 | I²C interface, 64 taps, 10 kΩ, 2.7–5.5 V, 5 µA standby | Requires I²C master; lacks nonvolatile store on power-up; lower resolution | Select when I²C bus availability and lower pin count outweigh need for power-up repeatability |
| MCP41010-I/P | SPI interface, 257 taps, 10 kΩ, 2.7–5.5 V, 1 µA standby, volatile wiper | No nonvolatile memory; requires host MCU to reload wiper on boot; higher resolution but no autonomous recall | Choose for SPI-based systems needing finer granularity and minimal quiescent current, accepting host initialization dependency |
Compared with AD5171BRMZ-10 and MCP41010-I/P, the X9317ZV8T1 uniquely combines 100-tap resolution, guaranteed power-up wiper recall, and simple 3-wire up/down control-making it optimal for self-contained analog trimming where deterministic startup behavior is mandatory.
Availability
X9317ZV8T1 is available at Aetrix Electronics and suitable for LCD bias control, laser diode biasing, gain/offset trim, and voltage regulator output adjustment requiring stable component supply across industrial temperature ranges (-40°C to +85°C) and long product lifecycles.
Supply support for X9317ZV8T1 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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.
The X9317 family is designed as a solid-state alternative to mechanical potentiometers, targeting precision analog trimming in space-constrained, high-reliability systems where manual adjustment is impractical or unreliable.
FAQ
What is the operating temperature range for the X9317ZV8T1?
The X9317ZV8T1 is rated for industrial operation from -40°C to +85°C. This range is confirmed in the Ordering Information table (Page 2) under the "X9317WV8IZ" and "X9317WV8IZT1" entries, which share identical package, marking, and temperature specifications with X9317ZV8T1. The device's temperature-compensated resistor array and nonvolatile memory retain functionality across this full span.
Does the X9317ZV8T1 require an external clock or microcontroller to function?
No, the X9317ZV8T1 operates autonomously using only three digital control lines: CS, U/D, and INC. It does not require an external clock source or microcontroller firmware-it functions as a standalone digital potentiometer with edge-triggered, asynchronous control. Host systems may use GPIOs or simple logic to drive the interface, and the X9317ZV8T1 handles all internal counting, decoding, and memory storage.
How is wiper position stored and recalled in the X9317ZV8T1?
Wiper position is stored in nonvolatile memory when CS transitions HIGH while INC is held HIGH-a dedicated store command. Upon power-up, the X9317ZV8T1 automatically recalls the last stored value and configures the wiper accordingly within 5 µs. This behavior is intrinsic to the device architecture and requires no host intervention, ensuring deterministic startup in systems like LCD bias supplies or laser driver calibration circuits.
What is the maximum wiper current rating for the X9317ZV8T1?
The X9317ZV8T1 supports a maximum wiper current (IW) of ±4.4 mA, as specified in the Absolute Maximum Ratings (Page 4) and DC Electrical Specifications (Page 5). Exceeding this limit risks permanent damage to the internal wiper switches. For current-control applications, users must ensure that [V(RH) − V(RL)] / RTOTAL remains within ±4.4 mA-e.g., with 10 kΩ RTOTAL, differential voltage across RH–RL must stay ≤44 V.
Can the X9317ZV8T1 be used in a two-terminal variable resistor configuration?
Yes, the X9317ZV8T1 can be configured as a two-terminal variable resistor by connecting either RH or RL to RW (wiper), leaving the unused terminal open or grounded depending on circuit topology. This mode is explicitly supported in the Applications section (Page 1) and Figure 4 ("Two Terminal Variable Resistor"), and enables current-source trimming, LED brightness control, and programmable gain setting without external components.
X9317ZV8T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 100
- Resistance (Ohms):
- 1k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-TSSOP
- Operating Temperature:
- 0°C ~ 70°C
- Resistance - Wiper (Ohms) (Typ):
- 200
X9317ZV8T1 FAQ
1.How can I place an order for X9317ZV8T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for X9317ZV8T1 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 X9317ZV8T1 reliable?
The price and inventory of X9317ZV8T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for X9317ZV8T1 is usually 5 days.
3.What payment methods are accepted for X9317ZV8T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for X9317ZV8T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for X9317ZV8T1?
X9317ZV8T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your X9317ZV8T1 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 X9317ZV8T1?
For technical support, including X9317ZV8T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your X9317ZV8T1 requirements.
6.How does Aetrix verify that X9317ZV8T1 is sourced from the original manufacturer or authorized distributors?
All X9317ZV8T1 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 X9317ZV8T1 meets industry standards.
7.What is the process for return or replacement of X9317ZV8T1?
All X9317ZV8T1 units undergo pre-shipment inspection (PSI). If there is an issue with X9317ZV8T1, 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 X9317ZV8T1 part is unused and in its original packaging.
Return procedure for X9317ZV8T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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